Method for preparing a turf-growing substrate, mixing apparatus and method for growing turf

Abstract

The present disclosure relates to the turf planting technical field, and particularly relates to a turf planting substrate preparation method, a mixing device and a turf planting method. The turf planting method comprises the following steps: determining a plant size parameter of a turf plant, a silt particle size of river silt, a silt moisture content of the river silt, a substrate particle size of a preparation substrate and a substrate moisture content of the preparation substrate; determining a mass ratio of the river silt and the preparation substrate based on the plant size parameter, the silt particle size, the silt moisture content, the substrate particle size and the substrate moisture content; and mixing the river silt and the preparation substrate according to the mass ratio to obtain a turf planting substrate. According to the parameters of the turf planting plant, the river silt and the preparation substrate, the present disclosure realizes reasonable distribution of the river silt and the preparation substrate, meets the growth demand of the turf planting plant, is beneficial to guarantee uniform turf emergence, prevent obvious baldness, improve the turf establishment rate and realize reasonable utilization of the river silt in turf planting.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of turf planting, in particular to a turf planting substrate preparation method, a mixing device and a turf planting method. BACKGROUND

[0002] Turf is an important part of urban greening, which not only provides a place for people to relax and entertain, but also purifies the air, regulates the temperature and improves the urban environment. Turf planting is usually on open soil, and each time turf is produced, 2-3 cm thick soil is usually removed, which consumes and occupies arable land resources. Therefore, it is urgent to solve the contradiction between turf planting and land resources by an environmental protection measure.

[0003] River silt accumulation is a continuous and inevitable natural process. According to statistics, billions of silt need to be treated every year in the world. Since the river silt contains rich organic matter and nutrients such as magnesium and iron needed for plant growth, from the perspective of nutrient recycling and ecological circulation, land use is the preferred method for river silt disposal internationally. Silt can be used as a substrate for turf and nursery plant planting, and for landscaping. However, since the river silt itself has fine particles, it has poor air permeability and water retention, and directly using river silt to prepare turf planting substrate will limit the absorption of water and nutrients by turf root zone, shortening the turf life cycle. In addition, when directly using river silt as a planting substrate, due to its small particle size, the size of the grass seed used is small, the amount of stored nutrients is small, and the topsoil germination ability is weak, resulting in low seedling emergence rate and turf establishment rate.

[0004] Therefore, there is a need for a compounding method to realize the rational use of river silt in turf planting. SUMMARY

[0005] Therefore, the present disclosure provides a turf planting substrate preparation method, a mixing device and a turf planting method, which solve the problem that river silt cannot be well applied to turf planting in the related art.

[0006] The present disclosure provides a turf planting substrate preparation method, the turf planting substrate comprising river silt and a preparation substrate, the turf planting substrate being used for planting turf plants, the method comprising: determining a plant size parameter of the turf plants, a silt particle size of the river silt, a silt moisture content of the river silt, a substrate particle size of the preparation substrate and a substrate moisture content of the preparation substrate; determining a mass ratio of the river silt and the preparation substrate based on the plant size parameter, the silt particle size, the silt moisture content, the substrate particle size and the substrate moisture content; and mixing the river silt and the preparation substrate according to the mass ratio to obtain a turf planting substrate.

[0007] According to one embodiment of the present application, the determining the mass ratio of the river silt and the adjusting substrate based on the plant size parameter, the silt particle size, the silt moisture content, the substrate particle size and the substrate moisture content comprises: determining a target cross-sectional size of the turf planting substrate based on the plant size parameter and a corresponding relationship between the plant size parameter and the cross-sectional size of the turf planting substrate; and calculating the mass ratio of the river silt and the adjusting substrate based on the target cross-sectional size, the silt particle size, the adjusting substrate particle size, the silt moisture content and the adjusting substrate moisture content.

[0008] According to one embodiment of the present application, the calculation formula for calculating the mass ratio of the river silt and the adjusting substrate based on the target cross-sectional size, the silt particle size, the adjusting substrate particle size, the silt moisture content and the adjusting substrate moisture content comprises: Z = 4.96·(aR+X-aX)-0.013·(aM+N-aN); b = 1-a; wherein Z represents the target cross-sectional size, a represents the mass fraction of the river silt in the turf planting substrate, b represents the mass fraction of the adjusting substrate in the turf planting substrate, R represents the silt particle size, X represents the adjusting substrate particle size, M represents the silt moisture content, and N represents the adjusting substrate moisture content.

[0009] According to one embodiment of the present application, the plant size parameter comprises a grass seed cross-sectional size A and a stem cross-sectional size B of the turf plant, and the corresponding relationship between the plant size parameter and the cross-sectional size of the turf planting substrate comprises: when A>B, the target cross-sectional size of the turf planting substrate is 0.60mm to 0.63mm; and when A

[0010] According to one embodiment of the present application, the adjusting substrate comprises one or more of kitchen garbage, garden garbage, livestock and poultry manure compost, and sediment compost, or any combination of two or more thereof.

[0011] The present application further provides a mixing device applied to the turf planting substrate adjusting method of the above-mentioned embodiments, which comprises a rack, a first receiving tank fixedly connected with the rack and used for receiving and stirring the river silt, a first weighing device installed on the rack and used for quantitatively receiving the river silt discharged from the first receiving tank, a second receiving tank fixedly connected with the rack and used for receiving and stirring the adjusting substrate, a second weighing device installed on the rack and used for quantitatively receiving the adjusting substrate discharged from the second receiving tank, and a mixing tank fixedly connected with the rack and used for receiving the river silt discharged from the first weighing device and the adjusting substrate discharged from the second weighing device and mixing and stirring the river silt and the adjusting substrate.

[0012] According to one embodiment of the present application, the first receiving tank has a first discharge port, and the first receiving tank comprises a first valve installed at the first discharge port; the first weighing device comprises a first weighing tank, a second valve, a first weighing unit and a first controller, the first weighing tank has a second inlet port and a second discharge port, the second inlet port is located below the first discharge port, the first weighing unit is connected to the first weighing tank for measuring the weight of the river silt in the first weighing tank, the second valve is arranged at the second discharge port, and the first controller is signal connected with the first weighing unit, the first valve and the second valve respectively and is configured to control the opening and closing of the first valve and the second valve based on the detection signal of the first weighing unit; the second receiving tank has a third discharge port, and the second receiving tank comprises a third valve installed at the third discharge port; the second weighing device comprises a second weighing tank, a fourth valve, a second weighing unit and a second controller, the second weighing tank has a fourth inlet port and a fourth discharge port, the fourth inlet port is located below the second discharge port, the second weighing unit is connected to the second weighing tank for measuring the weight of the prepared base material in the second weighing tank, the fourth valve is arranged at the fourth discharge port, and the second controller is signal connected with the second weighing unit, the third valve and the fourth valve respectively and is configured to control the opening and closing of the third valve and the fourth valve based on the detection signal of the second weighing unit.

[0013] According to one embodiment of the present application, the first filter device comprises a first filter cylinder and a first transfer mechanism, the first filter cylinder is provided with a first filter screen, the first transfer mechanism is installed on the rack and connected to the first filter cylinder and is configured to drive the first filter cylinder to switch between a first position and a second position, wherein in the first position, the first filter cylinder is located between the first discharge port and the second inlet port, and in the second position, the first filter cylinder is located outside the area between the first discharge port and the second inlet port; and / or the second filter device comprises a second filter cylinder and a second transfer mechanism, the second filter cylinder is provided with a second filter screen, the second transfer mechanism is installed on the rack and connected to the second filter cylinder and is configured to drive the second filter cylinder to switch between a third position and a fourth position, wherein in the third position, the second filter cylinder is located between the third discharge port and the fourth inlet port, and in the fourth position, the second filter cylinder is located outside the area between the third discharge port and the fourth inlet port.

[0014] According to one embodiment of the present application, in the case that the mixing device comprises the first filtering device, the first filtering device further comprises a first overturning mechanism and a first positioning mechanism, the first overturning mechanism and the first positioning mechanism are installed on the first transferring mechanism, the first overturning mechanism is used to drive the first filtering cylinder to rotate vertically, and the first positioning mechanism is used to lock the rotation angle of the first filtering cylinder; and / or, in the case that the mixing device comprises the second filtering device, the second filtering device further comprises a second overturning mechanism and a second positioning mechanism, the second overturning mechanism and the second positioning mechanism are installed on the second transferring mechanism, the second overturning mechanism is used to drive the second filtering cylinder to rotate vertically, and the second positioning mechanism is used to lock the rotation angle of the second filtering cylinder.

[0015] The present application also provides a turf planting method, which comprises: performing ground leveling treatment; laying the turf planting substrate with a preset thickness, the turf planting substrate being obtained through the turf planting substrate preparation method in the above embodiments; sowing turf plant seeds; performing regular water replenishment through a spraying device; and trimming the turf plants through a mower when the turf plants reach a preset height.

[0016] The turf planting substrate preparation method, the mixing device and the turf planting method provided by the embodiments of the present application can realize reasonable distribution of river sludge and preparation substrate according to parameters of turf planting plants, river sludge and preparation substrate, meet the growth requirements of the turf planting plants, help to ensure uniform turf emergence and prevent obvious baldness, avoid the limitation of river sludge on turf root zone activities, improve the turf establishment rate, and realize reasonable utilization of river sludge in turf planting. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 1 shows a flowchart of a turf planting substrate preparation method according to an embodiment of the present application.

[0018] Figure 2 Fig. 2 shows a flowchart of a turf planting method according to an embodiment of the present application.

[0019] Figure 3 Fig. 3 shows a structural schematic diagram of a mixing device according to an embodiment of the present application.

[0020] Figure 4 Fig. 4 shows a structural schematic diagram of a first filtering device in a mixing device according to an embodiment of the present application.

[0021] REFERENCE SIGNS:

[0022] 100, rack;

[0023] 200, first receiving tank; 201, first feeding port; 202, first discharging port; 203, first valve;

[0024] 300, first weighing device; 301, first weighing tank; 302, second feeding port; 303, second discharging port; 304, second valve;

[0025] 400, second receiving tank; 401, third feeding port; 402, third discharging port; 403, third valve;

[0026] 500, second weighing device; 501, second weighing tank; 502, fourth feeding port; 503, fourth discharging port; 504, fourth valve;

[0027] 600, mixing tank; 601, fifth valve;

[0028] 700, first filtering device; 701, first filtering cylinder; 702, first filter screen; 703, first transferring mechanism; 704, first overturning mechanism; 705, first positioning mechanism;

[0029] 800, second filtering device; 801, second filtering cylinder; 802, second transferring mechanism. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0031] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure. Figure 1 The turf planting substrate preparation method is described.

[0032] The turf planting substrate includes river silt and a preparation substrate, the turf planting substrate is used for planting turf plants, and the turf planting substrate preparation method includes the following steps.

[0033] S100, determining a plant size parameter of the turf plants, a silt particle size of the river silt, a silt moisture content of the river silt, a substrate particle size of the preparation substrate, and a substrate moisture content of the preparation substrate.

[0034] The plant size parameters include the grass seed cross-sectional size A and the stem cross-sectional size B of the turf plant. Optionally, the plant size parameters can further include the root cross-sectional size, etc. The cross-sectional size of the grass seed refers to the physical size of the grass seed in a certain cross section, which can be used to describe the size or morphology of the grass seed. In the embodiment, the grass seed cross-sectional size A is the diameter of the largest cross section of the grass seed. In actual applications, the cross-sectional size of the grass seed can be determined in different ways, such as screening and classification by a standard screen, or measurement by a vernier caliper, etc. The stem cross-sectional size B in the embodiment refers to the physical size of the cross section of the stem at a certain position of the turf plant, for example, the diameter at a position 1 cm away from the ground of the turf plant. This size can also be measured by a vernier caliper.

[0035] The silt particle size of the river silt and the base particle size of the base material can be determined by various test methods, including laser particle size test, sedimentation method, screening method, microscope method, etc. Preferably, the laser particle size test is used, and the particle size distribution of the particles can be calculated by measuring the scattering light intensity distribution of the particles to the laser.

[0036] The silt moisture content of the river silt and the base moisture content of the base material can be measured by the oven drying weight loss method, based on the change in mass of the sample before and after heating and drying to calculate the moisture content.

[0037] Optionally, the base material includes but is not limited to kitchen garbage, garden garbage, livestock and poultry manure compost, and sediment compost. These components can be used alone or in any combination of two or more to achieve diversification and optimization of the base material. Through such a combination, the present application aims to provide a flexible and efficient base material solution to adapt to different application scenarios and needs, while making full use of various types of organic waste resources and promoting the recycling of resources.

[0038] Optionally, the river silt is obtained by grab dredging. Grab dredging is a commonly used underwater dredging method, which works on the principle of using a grab dredging ship or similar equipment to directly penetrate the river bottom with a grab on a mechanical arm, driving the grab with oil pressure, closing the grab after inserting the bottom mud to the set depth, taking out the silt, and then lifting it to the designated position (such as a barge) and opening the grab, so that the silt falls into it. The river silt itself is a byproduct of the river dredging process, and after being obtained by grab dredging, it is used as a turf planting substrate, realizing the resource utilization of waste and reducing the cost of waste disposal.

[0039] S200, determining the mass ratio of the river silt and the base material based on the plant size parameters, the silt particle size, the silt moisture content, the base particle size, and the base moisture content. Specifically, step S200 includes:

[0040] determining the target cross-sectional size of the turf planting substrate based on the plant size parameter and the correspondence between the plant size parameter and the cross-sectional size of the turf planting substrate;

[0041] Specifically, the plant size parameter includes the grass seed cross-sectional size A and the stem cross-sectional size B of the turf plant, and the correspondence between the plant size parameter and the cross-sectional size of the turf planting substrate includes:

[0042] When A>B, the target cross-sectional size of the turf planting substrate is 0.60mm to 0.63mm;

[0043] When A

[0044] Different types of turf plants have different requirements for turf planting substrates. It has been verified that when the relative relationship between the grass seed cross-sectional size A and the stem cross-sectional size B of the turf plant is different, different cross-sectional sizes of the turf planting substrate need to be used to achieve the best growth effect. Specifically, when the grass seed cross-sectional size A of the turf plant is greater than the stem cross-sectional size B, the cross-sectional size of the turf planting substrate used is 0.60mm to 0.63mm, and when the grass seed cross-sectional size A of the turf plant is less than the stem cross-sectional size B, the cross-sectional size of the turf planting substrate used is 0.40mm to 0.50mm. It is worth noting that when A=B, the cross-sectional size of the turf planting substrate can be 0.50mm to 0.60mm to achieve the best growth effect.

[0045] Based on the above verification results, in the embodiment, the target cross-sectional size of the turf planting substrate is determined based on the plant size parameter and the correspondence between the plant size parameter and the cross-sectional size of the turf planting substrate, which can accurately obtain the target cross-sectional size of the turf planting substrate required to achieve the best growth effect of the turf plant, thereby facilitating the determination of the mass ratio of the river sludge and the blending material.

[0046] The mass ratio of the river sludge and the blending material is calculated and obtained based on the target cross-sectional size, the sludge particle size, the blending material particle size, the sludge moisture content, and the blending material moisture content.

[0047] Optionally, the calculation formula for calculating and obtaining the mass ratio of the river sludge and the blending material based on the target cross-sectional size, the sludge particle size, the blending material particle size, the sludge moisture content, and the blending material moisture content includes:

[0048] Z=4.96·(aR+X-aX)-0.013·(aM+N-aN);

[0049] b=1-a;

[0050] Wherein, Z represents the target cross-sectional dimension, a represents the mass fraction of river silt in the turf planting substrate, b represents the mass fraction of the prepared substrate in the turf planting substrate, R represents the silt particle size, X represents the prepared substrate particle size, M represents the silt moisture content, and N represents the prepared substrate moisture content.

[0051] The derivation of the above formula is based on long-term turf planting practice and experimental data, and the basic data of the optimal turf planting substrate ratio mode are selected for derivation.

[0052] For example, the mass fraction of river silt in the turf planting substrate is a, and the mass fraction of the prepared substrate in the turf planting substrate is b, then b = 1-a. When the silt moisture content M is 2.03%, the prepared substrate E has a prepared substrate moisture content N of 11.78%, the silt particle size R is 0.07mm, the prepared substrate E has a prepared substrate particle size X of 0.22mm, the substrate cross-sectional dimension Z is 0.63mm, and the ratio is 1:1(a = b = 0.5). When the silt moisture content M is 2.03%, the prepared substrate F has a prepared substrate moisture content N of 43.96%, the silt particle size R is 0.07mm, the prepared substrate F has a prepared substrate particle size X of 0.31mm, the substrate cross-sectional dimension Z is 0.64mm, and the ratio is 1:1(a = b = 0.5). According to the two groups of data, a quadratic equation group with cross-sectional dimension as the dependent variable and moisture content and particle size as the independent variable is established, and the weight of the moisture content is m and the weight of the particle size is n. Substitute the two groups of data into the formula Z = m(aM + bN) + n(aR + bX):

[0053] 0.63 = m(0.5*2.03 + 0.5*11.78) + n(0.5*0.07 + 0.5*0.22)

[0054] 0.64 = m(0.5*2.03 + 0.5*43.96) + n(0.5*0.07 + 0.5*0.31)

[0055] Solving m = -0.013 and n = 4.96, and substituting m = -0.013, n = 4.96, and b = 1-a into the formula Z = m(aM + bN) + n(aR + bX) to obtain the calculation formula:

[0056] Z = 4.96*(aR + X - aX) - 0.013*(aM + N - aN);

[0057] S300, mixing river silt and prepared substrate according to mass ratio to obtain turf planting substrate.

[0058] The river silt and the blending base material are precisely blended according to the mass ratio obtained in step S200, and the turf planting substrate is obtained after the river silt and the blending base material are mixed, so that the growth demand of the turf planting plant is met, the turf emergence is uniformly ensured, the obvious baldness is prevented, meanwhile, the limitation of the river silt on the root zone activity of the turf is avoided, the turf establishment rate is improved, and the reasonable utilization of the river silt in the turf planting is realized.

[0059] In order to further illustrate the present application, the following examples are used for detailed description.

[0060] Example 1:

[0061] River silt blending kitchen garbage compost planting tall fescue

[0062] The cross-sectional size of the tall fescue grass seed is 5mm-6mm, and the cross-sectional size of the stem is 3mm-4mm.

[0063] Since the cross-sectional size of the grass seed is greater than the cross-sectional size of the stem, the cross-sectional size Z of the tall fescue turf planting substrate should be adjusted to 0.60mm-0.63mm.

[0064] The particle size of the river silt is 0.07mm, and the water content is 2.03%, the blending base material is selected as the kitchen garbage compost, the particle size of the kitchen garbage compost is 0.22mm, and the water content is 11.78%. According to the cross-sectional size Z of the turf planting substrate calculation formula, when the kitchen garbage compost is used as the blending base material, the mass fraction of the river silt in the turf planting substrate should be 50%-55%;

[0065] The ground is finely raked and leveled, and is rolled twice by a mower flattening machine, non-woven fabric is laid, the substrate is leveled, the substrate height is controlled to be 1cm, the grass seeds are sown, and the mower flattening machine is rolled twice, and water is poured twice a day.

[0066] Index determination: seed germination rate, plant height, biomass, leaf number, and establishment rate, wherein the seed germination rate is determined on the 7th day after sowing, the plant height, biomass and leaf number are determined on the 15th day after sowing, and the establishment rate is determined on the 50th day. The determination results are shown in Table 1.

[0067] Table 1

[0068]

[0069] The control group is the river silt with a particle size of 0.07mm and a water content of 2.03% as the substrate, and the planting results of the tall fescue under the same culture mode.

[0070] The results show that, compared with the control group, the seed germination rate and the rate of forming lawn of the tall fescue sod planted by the river sludge and the kitchen garbage compost are increased by 40% and 34% respectively, the seedling height and biomass are increased by 1.4 times and 5.1 times respectively, and the leaf number is also significantly increased.

[0071] Example 2

[0072] Tall fescue planted by river sludge and garden garbage compost

[0073] The cross-sectional size of the tall fescue seed is 5mm-6mm, and the cross-sectional size of the stem is 3mm-4mm.

[0074] Since the cross-sectional size of the seed is greater than that of the stem, the cross-sectional size Z of the tall fescue sod planting substrate should be adjusted to 0.60mm-0.63mm.

[0075] The particle size of the river sludge is 0.07mm, and the water content is 2.03%. The garden garbage compost is selected as the adjusting substrate. The particle size of the garden compost is 0.31mm, and the water content is 43.96%. According to the formula for calculating the cross-sectional size Z of the sod planting substrate, when the garden garbage compost is used as the adjusting substrate, the mass fraction of the river sludge in the sod planting substrate should be 52%-57%.

[0076] The ground is raked and leveled, rolled twice by the mower flattening machine, laid with non-woven fabric, the substrate is leveled, the substrate height is controlled to be 1cm, the seeds are sown, rolled twice by the mower flattening machine, and watered twice a day.

[0077] Index determination: seed germination rate, plant height, biomass, leaf number, and rate of forming lawn. The seed germination rate is determined on the 7th day after sowing, the plant height, biomass, and leaf number are determined on the 15th day after sowing, and the rate of forming lawn is determined on the 50th day. The determination results are shown in Table 2.

[0078] Table 2

[0079]

[0080]

[0081] The control group is the river sludge with a particle size of 0.07mm and a water content of 2.03% as the substrate, and the tall fescue planting results under the same culture mode.

[0082] The results show that, compared with the control group, the seed germination rate and the rate of forming lawn of the tall fescue sod planted by the river sludge and the garden garbage compost are increased by 40% and 34% respectively, the seedling height and biomass are increased by 1.4 times and 5.1 times respectively, and the leaf number is also significantly increased.

[0083] Example 3

[0084] River silt is mixed with garden waste compost to plant poa annua

[0085] The cross-sectional size of the poa annua seed is 1.5mm-2mm, and the cross-sectional size of the stem is 1.9mm-2.5mm.

[0086] Since the cross-sectional size of the seed is < the cross-sectional size of the stem, the cross-sectional size Z of the poa annua sod planting substrate should be adjusted to 0.40mm-0.50mm.

[0087] The particle size of the river silt is 0.07mm, and the water content is 2.03%, and the mixed base material is selected as the garden waste compost, the particle size of the garden compost is 0.31mm, and the water content is 43.96%. According to the cross-sectional size Z of the sod planting substrate calculation formula, when the garden waste compost is used as the mixed base material, the river silt should account for 28%-32% of the mass fraction of the sod planting substrate.

[0088] The ground is raked and flattened, rolled twice with a lawn flattening machine, laid with non-woven fabric, and the substrate is laid flat, and the substrate height is controlled to be 1cm, the seeds are sown, and the lawn flattening machine is rolled twice, and water is poured twice a day.

[0089] Index determination: seed germination rate, plant height, biomass, leaf number, and coverage rate, wherein the seed germination rate is determined on the 7th day after sowing, the plant height, biomass and leaf number are determined on the 15th day after sowing, and the coverage rate is determined on the 50th day. The determination results are as shown in the following table 3.

[0090] Table 3

[0091]

[0092] The control group is river silt with a particle size of 0.07mm and a water content of 2.03% as the substrate, and the poa annua planting results under the same culture mode.

[0093] The results show that, compared with the control group, the poa annua sod planted by mixing river silt with garden waste compost has a seed germination rate and coverage rate increased by 53% and 21% respectively, a seedling height and biomass increased by 1.3 times and 4.8 times respectively, and a significant increase in the number of leaves.

[0094] In combination Figure 2 , the embodiment of the present application also provides a sod planting method, comprising:

[0095] S400, ground leveling treatment is performed. Specifically, the ground is raked and flattened, rolled twice with a lawn flattening machine, and laid with non-woven fabric.

[0096] S500, laying a pre-set thickness of sod planting substrate, the sod planting substrate is obtained by the above-mentioned sod planting substrate mixing method. Optionally, the laying thickness of the sod planting substrate is 1cm.

[0097] S600, sowing grass seeds of turf plants. Sow the grass seeds of turf plants into the turf planting substrate, and roll twice through the mower press.

[0098] S700, periodically water through the spraying device. Specifically, water through the spraying device once every 12 hours.

[0099] S800, when the turf plants reach the preset height, trim the turf plants through the mower.

[0100] Illustratively, when the height of the turf plants reaches 12-18 cm, a self-propelled mower is used for trimming.

[0101] Optionally, the turf planting method further comprises:

[0102] S900, after the turf plants are sown for a preset time, collect image information of the turf planting area, and determine the turf coverage rate based on the image information. For example, after the turf plants are sown for 50 days, the turf is covered, and a high-resolution image of the turf area is taken using a digital camera or a drone. Through image processing software such as ImageJ, Photoshop, etc., the proportion of the turf coverage area to the total area is analyzed to calculate the turf coverage rate.

[0103] In combination Figure 3 and Figure 4 , the embodiment of the present application also provides a mixing device applied to the above-mentioned turf planting substrate preparation method, which comprises a rack 100, a first receiving tank 200, a first weighing device 300, a second receiving tank 400, a second weighing device 500 and a mixing tank 600.

[0104] The rack 100 serves as the support structure of the entire mixing device, ensuring the stability and reliability of all components. The rack 100 can be a steel structure rack 100 assembled by welding or bolting a plurality of plate bodies, channel steel or I-beam structures, etc., which has large carrying capacity and can adapt to harsh working environments.

[0105] The first receiving tank 200 is fixedly connected with the rack 100 and used for receiving and stirring the river sludge. The first weighing device 300 is installed on the rack 100 and used for quantitatively receiving the river sludge discharged from the first receiving tank 200. The second receiving tank 400 is fixedly connected with the rack 100 and used for receiving and stirring the preparation substrate. The second weighing device 500 is installed on the rack 100 and used for quantitatively receiving the preparation substrate discharged from the second receiving tank 400. The mixing tank 600 is fixedly connected with the rack 100 and used for receiving the river sludge discharged from the first weighing device 300 and the preparation substrate discharged from the second weighing device 500, and mixing and stirring the river sludge and the preparation substrate.

[0106] The river silt enters the first receiving tank 200 and is temporarily stored in the first receiving tank 200. Under the stirring action of the first receiving tank 200, the uniformity of the river silt can be ensured, and the phenomenon of sedimentation of the river silt can be avoided. Similarly, the base material enters the second receiving tank 400 and is temporarily stored in the second receiving tank 400. Under the stirring action of the second receiving tank 400, the uniformity of the base material can be ensured. The first weighing device 300 and the second weighing device 500 play a role in quantitative weighing, thereby ensuring that the quality of the river silt and the quality of the base material entering the mixing tank 600 meet the required quality ratio. The river silt weighed by the first weighing device 300 and the base material weighed by the second weighing device 500 enter the mixing tank 600 together for stirring, so that the river silt and the base material are fully mixed. The turf planting substrate mixed by the mixing tank 600 meets the quality ratio of the river silt and the base material, and can meet the needs of turf planting.

[0107] In some embodiments of the present disclosure, the first receiving tank 200 has a first inner cavity, a first inlet 201 and a first outlet 202, and the first inlet 201 and the first outlet 202 are respectively communicated with the first inner cavity. Optionally, the first inlet 201 is located at the top of the first receiving tank 200, and the first outlet 202 is located at the bottom of the first receiving tank 200. The river silt can enter the first inner cavity through the first inlet 201 and be stirred in the first inner cavity. The river silt in the first inner cavity can enter the first weighing device 300 through the first outlet 202.

[0108] The first receiving tank 200 comprises a first valve 203 installed on the first outlet 202, and the first valve 203 is used for controlling the opening and closing of the first outlet 202. When the first valve 203 is closed, the river silt can stay in the first inner cavity. When the first valve 203 is closed, the river silt can be discharged through the first outlet 202.

[0109] The first weighing device 300 comprises a first weighing tank 301, a second valve 304, a first weighing unit and a first controller. The first weighing tank 301 has a second feeding port 302, a second cavity and a second discharging port 303, and the second feeding port 302 and the second discharging port 303 are in communication with the second cavity respectively. The second feeding port 302 is located below the first discharging port 202, and the river silt discharged from the first discharging port 202 can enter the second cavity through the second feeding port 302. The second discharging port 303 is located at the bottom of the first weighing device 300, and the river silt in the second cavity can be discharged through the second discharging port 303. The second valve 304 is arranged at the second discharging port 303 and is used for controlling the opening and closing of the second discharging port 303. The first weighing unit is connected to the first weighing tank 301 and is used for measuring the weight of the river silt in the first weighing tank 301. The second weighing unit can adopt, for example, a tank weighing sensor, a column weighing sensor, a pressure weighing sensor, a ring hollow force sensor and the like, which are not limited here as long as they can realize the function of measuring the weight of the river silt in the first weighing tank 301. In addition, the measurement of the weight of the river silt in the first weighing tank 301 can be obtained by measuring the total weight of the first weighing tank 301 and the river silt in the first weighing tank 301, and then subtracting the self-weight of the first weighing tank 301.

[0110] The first controller is signal-connected with the first weighing unit, the first valve 203 and the second valve 304 respectively and is configured to control the opening and closing of the first valve 203 and the second valve 304 based on the detection signal of the first weighing unit. Specifically, the first controller is configured to: when the weight of the river silt in the first weighing tank 301 is less than the first preset value based on the detection signal of the first weighing unit, control the first valve 203 to open and the second valve 304 to close; and when the weight of the river silt in the first weighing tank 301 is equal to the first preset value based on the detection signal of the first weighing unit, control the first valve 203 to close and the second valve 304 to open. Thus, when the weight of the river silt in the first weighing tank 301 is less than the first preset value, the river silt in the first receiving tank 200 can be supplied into the first weighing tank 301, and when the weight of the river silt in the first weighing tank 301 is equal to the first preset value, the supply of the river silt in the first receiving tank 200 into the first weighing tank 301 is stopped, thereby realizing the quantitative weighing of the river silt. The first preset value can be determined according to the weight of the turf planting substrate in a single preparation and the mass ratio of the river silt to the prepared substrate.

[0111] The second receiving tank 400 has a third cavity, a third feeding port 401 and a third discharging port 402, and the third feeding port 401 and the third discharging port 402 are in communication with the third cavity, respectively. Optionally, the third feeding port 401 is located at the top of the second receiving tank 400, and the third discharging port 402 is located at the bottom of the second receiving tank 400. The second receiving tank 400 comprises a third valve 403 installed at the third discharging port 402, and the third valve 403 is used to control the opening and closing of the third discharging port 402. The blending base material can enter the third cavity through the third feeding port 401, and when the third valve 403 is closed, the blending base material can stay in the third cavity, and when the third valve 403 is opened, the blending base material can be discharged through the third discharging port 402.

[0112] The second weighing tank 501 has a fourth feeding port 502, a fourth cavity and a fourth discharging port 503, and the fourth feeding port 502 and the fourth discharging port 503 are in communication with the fourth cavity, respectively. The fourth feeding port 502 is located below the second discharging port 303, and the blending base material discharged from the second discharging port 303 can enter the fourth cavity through the fourth feeding port 502. The fourth discharging port 503 is located at the bottom of the second weighing device 500, and the blending base material in the fourth cavity can be discharged through the fourth discharging port 503. A fourth valve 504 is arranged at the fourth discharging port 503, and is used to control the opening and closing of the fourth discharging port 503. The second weighing unit is connected to the second weighing tank 501, and is used to measure the weight of the blending base material in the second weighing tank 501. The fourth weighing unit can adopt, for example, a tank weighing sensor, a column weighing sensor, a pressure weighing sensor, a ring hollow force sensor and the like, which are not limited herein as long as they can realize the function of measuring the weight of the blending base material in the second weighing tank 501. In addition, the measurement of the weight of the blending base material in the second weighing tank 501 can be obtained by measuring the total weight of the second weighing tank 501 and the blending base material in the second weighing tank 501, and then subtracting the self-weight of the second weighing tank 501.

[0113] The second controller is in signal connection with the second weighing unit, the third valve 403 and the fourth valve 504 respectively, and is configured to control the opening and closing of the third valve 403 and the fourth valve 504 based on the detection signal of the second weighing unit. Specifically, the second controller is configured to: when it is determined based on the detection signal of the second weighing unit that the weight of the blending base material in the second weighing tank 501 is less than the second preset value, control the third valve 403 to open and the fourth valve 504 to close; and when it is determined based on the detection signal of the second weighing unit that the weight of the blending base material in the second weighing tank 501 is equal to the second preset value, control the third valve 403 to close and the fourth valve 504 to open. Thus, when the weight of the blending base material in the second weighing tank 501 is less than the second preset value, the blending base material in the second receiving tank 400 can be supplied into the second weighing tank 501, and when the weight of the blending base material in the second weighing tank 501 is equal to the second preset value, the supply of the blending base material in the second receiving tank 400 into the second weighing tank 501 is stopped, thereby realizing the quantitative weighing of the blending base material. The second preset value can be determined according to the weight of the turf planting substrate for single blending and the mass ratio of the river sludge to the blending base material.

[0114] In some embodiments of the present disclosure, the mixing device further comprises a first filtering device 700, the first filtering device 700 comprising a first filtering cylinder 701 and a first moving mechanism 703, the first filtering cylinder 701 being provided with a first filter screen 702, the first moving mechanism 703 being installed on the rack 100, connected to the first filtering cylinder 701, and configured to drive the first filtering cylinder 701 to switch between a first position and a second position, wherein in the first position, the first filtering cylinder 701 is located between the first discharge port 202 and the second feeding port 302, and in the second position, the first filtering cylinder 701 is located outside the area between the first discharge port 202 and the second feeding port 302.

[0115] In some embodiments of the present disclosure, the mixing device further comprises a second filtering device 800, the second filtering device 800 comprising a second filtering cylinder and a second moving mechanism 802, the second filtering cylinder being provided with a second filter screen, the second moving mechanism 802 being installed on the rack 100, connected to the second filtering cylinder, and configured to drive the second filtering cylinder to switch between a third position and a fourth position, wherein in the third position, the second filtering cylinder is located between the third discharge port 402 and the fourth feeding port 502, and in the fourth position, the second filtering cylinder is located outside the area between the third discharge port 402 and the fourth feeding port 502.

[0116] The first filter cylinder 701 and the second filter cylinder can play a filtering role. Taking the first filter cylinder 701 as an example, when the first filter cylinder 701 is located at the first position, the river silt discharged from the first discharge port 202 can pass through the first filter cylinder 701 to reach the second feeding port 302. During this process, larger particles such as stones in the river silt are blocked by the first filter screen 702 and stay in the first filter cylinder 701, so that the river silt entering the first weighing tank 301 does not contain larger particles such as stones, which is beneficial to ensuring the uniformity of the turf planting substrate and further ensuring the good growth effect of the turf plants. When the first filter cylinder 701 is located at the second position, the first filter cylinder 701 is located outside the area between the first discharge port 202 and the second feeding port 302, so that the first filter cylinder 701 can be conveniently cleaned, meeting the long-term use requirement. Similarly, the second filter cylinder can realize filtering of the mixed substrate and is convenient to clean, which will not be described in detail here.

[0117] The first conveying mechanism 703 and the second conveying mechanism 802 described above can adopt a rotary driving structure or a telescopic driving structure. For example, the first conveying mechanism 703 and the second conveying mechanism 802 include a rotary arm, a first driving motor and a first transmission assembly. One end of the rotary arm is rotationally connected to the rack 100, and the other end is connected to the first filter cylinder 701 or the second filter cylinder. The first driving motor is installed on the rack 100, and the first transmission assembly is connected between the first driving motor and the rotary arm. The first transmission assembly can be a gear set or a synchronous belt transmission structure, etc. When the first driving motor operates, it can drive the rotary arm to rotate horizontally, so as to adjust the position of the first filter cylinder 701 or the second filter cylinder.

[0118] In some embodiments of the present disclosure, when the mixing device includes the first filter device 700, the first filter device 700 further includes a first overturning mechanism 704 and a first positioning mechanism 705. The first overturning mechanism 704 and the first positioning mechanism 705 are installed on the first conveying mechanism 703. The first overturning mechanism 704 is used to drive the first filter cylinder 701 to rotate vertically, and the first positioning mechanism 705 is used to lock the rotation angle of the first filter cylinder 701.

[0119] In some embodiments of the present disclosure, when the mixing device includes the second filter device 800, the second filter device 800 further includes a second overturning mechanism and a second positioning mechanism. The second overturning mechanism and the second positioning mechanism are installed on the second conveying mechanism 802. The second overturning mechanism is used to drive the second filter cylinder to rotate vertically, and the second positioning mechanism is used to lock the rotation angle of the second filter cylinder.

[0120] Optionally, the mixing device comprises a first filtering device 700 and a second filtering device 800, the first filtering device 700 further comprises a first overturning mechanism 704 and a first positioning mechanism 705, and the second filtering device 800 further comprises a second overturning mechanism and a second positioning mechanism. The first overturning mechanism 704 and the second overturning mechanism each comprise a second motor, a second transmission assembly and an overturning shaft, wherein the overturning shaft is horizontally arranged, is rotationally connected with the rotating arm, and is fixedly connected with the first filtering cylinder 701 or the second filtering cylinder, the second motor is installed on the rotating arm and is in transmission connection with the overturning shaft through the second transmission assembly, the second transmission assembly can be a gear set or a synchronous belt transmission structure, etc., and the second motor can drive the overturning shaft to rotate through the second transmission assembly when the second motor is in operation, thereby driving the first filtering cylinder 701 or the second filtering cylinder connected with the overturning shaft to rotate vertically. When the first filtering cylinder 701 or the second filtering cylinder is rotated by 180°, the opening on the upper side thereof faces downward, which can facilitate pouring out the impurities stored in the first filtering cylinder 701 or the second filtering cylinder. The first positioning mechanism 705 and the second positioning mechanism each comprise a telescopic pin and a telescopic motor, the telescopic pin is in sliding connection with the rotating arm, the telescopic motor is installed on the rotating arm, the movable end of the telescopic motor is fixedly connected with the telescopic pin, and the telescopic motor is adapted to drive the telescopic pin to move towards or away from the corresponding first filtering cylinder 701 or second filtering cylinder. The side wall of the first filtering cylinder 701 and the side wall of the second filtering cylinder are respectively provided with positioning holes, and the positioning holes of the first filtering cylinder 701 or the second filtering cylinder can be locked in an angle when the positioning holes are in plug-in cooperation with the corresponding telescopic pin. For example, the upper end of the first filtering cylinder 701 and the upper end of the second filtering cylinder serve as an inlet, the lower end thereof serves as an outlet, the first filter screen 702 is installed at the lower end of the first filtering cylinder 701, the second filter screen is installed at the lower end of the second filtering cylinder, the first filtering cylinder 701 and the second filtering cylinder are respectively provided with a plurality of positioning holes, the first filtering cylinder 701 or the second filtering cylinder has the positioning holes capable of being in plug-in cooperation with the telescopic pin at the angle of the opening upward and at the angle of the opening downward, and thus the corresponding first filtering cylinder 701 or second filtering cylinder can be positioned at the angle of the opening upward or at the angle of the opening downward through the telescopic pin.

[0121] In some embodiments of the present disclosure, the first receiving tank 200, the second receiving tank 400 and the mixing tank 600 are respectively provided with at least one stirring device, and the stirring device comprises a stirring motor, a speed reducer, a shaft coupling, a stirring shaft and a stirrer. The stirring motor is connected with the speed reducer, the output shaft of the speed reducer is connected with the stirring shaft through the shaft coupling, and the stirrer is fixed to the stirring shaft. The stirrer can adopt any structure form such as paddle type, turbine type and anchor type, which is not limited here. By arranging the stirring device, the stirring function of the first receiving tank 200, the second receiving tank 400 and the mixing tank 600 can be realized, which is beneficial to ensuring the uniformity of the turf planting substrate.

[0122] Optionally, the mixing outlet of the mixing tank 600 is located at the bottom of the mixing tank 600 and is spaced from the ground, and the mixing outlet is provided with a fifth valve 601 for opening and closing control of the mixing outlet.

[0123] As used in the description of the embodiments of the disclosure and the appended claims, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" or "the component" can include a plurality of such components, and so forth.

[0124] It should be understood that "on", "above", and "on top" in the present disclosure should be interpreted in the broadest context possible so that "on" means not only "directly on" but also includes the meaning of "on" with intermediate features or layers therebetween, and "above" or "on top" includes not only the meaning of "above" or "on top" but also the meaning of "above" or "on top" without intermediate features or layers therebetween (i.e., directly on).

[0125] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0126] It should be noted that the terms "comprising", "including", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements recited, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the phrase "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus including the element.

[0127] The above description is merely the preferred embodiments of the present disclosure, and is not intended to limit the present disclosure. Any modification, equivalent replacement, and the like made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A method for preparing a turf planting matrix, characterized in that: The turf planting matrix comprises river silt and a prepared base material, and the turf planting matrix is ​​used for planting turf plants. The method comprises: Determining plant size parameters of the turf plant, silt particle size of the river silt, silt moisture content of the river silt, substrate particle size of the prepared substrate, and substrate moisture content of the prepared substrate; Determining the mass ratio of the riverbed silt and the prepared substrate based on the plant size parameter, the silt particle size, the silt moisture content, the substrate particle size, and the substrate moisture content; Mixing the riverbed silt and the prepared base material according to the mass ratio to obtain a turf planting base material; Wherein, determining the mass ratio of the river silt and the prepared substrate based on the plant size parameter, the silt particle size, the silt moisture content, the substrate particle size and the substrate moisture content includes: Determining a target cross-sectional size of the turf planting matrix based on the plant size parameters and a corresponding relationship between the plant size parameters and the cross-sectional size of the turf planting matrix; The mass ratio of the river silt and the mixing base material is calculated based on the target cross-sectional size, the silt particle size, the mixing base material particle size, the silt moisture content and the mixing base material moisture content; The plant size parameters include the grass seed cross-sectional size A and the stem cross-sectional size B of the turf plant. The corresponding relationship between the plant size parameters and the cross-sectional size of the turf planting matrix includes: When A>B, the target cross-sectional size of the turf planting substrate is: 0.60mm to 0.63mm; When A < B, the target cross-sectional size of the turf planting substrate is: 0.40 mm to 0.50 mm; The calculation formula for obtaining the mass ratio of the river silt and the mixing base material based on the target cross-sectional size, the silt particle size, the mixing base material particle size, the silt moisture content, and the mixing base material moisture content includes: Z=4.96·(aR+X-aX)-0.013·(aM+N-aN); b=1-a; Among them, Z represents the target cross-sectional size, a represents the mass fraction of riverbed silt in the turf planting matrix, b represents the mass fraction of the prepared substrate in the turf planting matrix, R represents the silt particle size, X represents the prepared substrate particle size, M represents the silt moisture content, and N represents the prepared substrate moisture content.

2. The method for preparing turf planting matrix according to claim 1, wherein: The prepared base material includes one or any combination of two or more of kitchen waste, garden waste, livestock and poultry manure compost, and bottom mud compost.

3. A mixing device, characterized in that: The method for preparing a turf planting matrix as claimed in claim 1 or 2 comprises: frame; a first receiving tank, fixedly connected to the frame, for receiving and stirring river silt; a first weighing device, mounted on the frame, for quantitatively receiving the river silt discharged from the first receiving tank; A second receiving tank, fixedly connected to the frame, for receiving and stirring the base material; a second weighing device, mounted on the frame, for quantitatively receiving the prepared substrate discharged from the second receiving tank; A mixing tank is fixedly connected to the frame, and is used to receive the riverbed silt discharged by the first weighing device and the prepared base material discharged by the second weighing device, and to mix and stir the riverbed silt and the prepared base material.

4. The mixing device according to claim 3, characterized in that The first receiving tank has a first discharge port, and the first receiving tank includes a first valve, and the first valve is installed at the first discharge port; The first weighing device includes a first weighing tank, a second valve, a first weighing unit and a first controller, the first weighing tank having a second feed port and a second discharge port, the second feed port being located below the first discharge port, the first weighing unit being connected to the first weighing tank and being used to measure the weight of the river silt in the first weighing tank, the second valve being disposed at the second discharge port, the first controller being respectively signal-connected to the first weighing unit, the first valve and the second valve, and being configured to control the opening and closing of the first valve and the second valve based on a detection signal from the first weighing unit; The second receiving tank has a third discharge port, and the second receiving tank includes a third valve, and the third valve is installed at the third discharge port; The second weighing device includes a second weighing tank, a fourth valve, a second weighing unit and a second controller. The second weighing tank has a fourth feed port and a fourth discharge port. The fourth feed port is located below the second discharge port. The second weighing unit is connected to the second weighing tank and is used to measure the weight of the prepared substrate in the second weighing tank. The fourth valve is arranged at the fourth discharge port. The second controller is respectively connected to the second weighing unit, the third valve and the fourth valve signals, and is configured to control the opening and closing of the third valve and the fourth valve based on the detection signal of the second weighing unit.

5. The mixing device according to claim 4, characterized in that Also includes: A first filter device includes a first filter cartridge and a first transfer mechanism, wherein a first filter screen is disposed in the first filter cartridge, and the first transfer mechanism is mounted on the frame and connected to the first filter cartridge, and is configured to drive the first filter cartridge to switch between a first position and a second position, wherein in the first position, the first filter cartridge is located between the first discharge port and the second feed port, and in the second position, the first filter cartridge is located outside the area between the first discharge port and the second feed port; And / or, the second filtering device includes a second filter cartridge and a second transfer mechanism, a second filter screen is provided in the second filter cartridge, the second transfer mechanism is installed on the frame, connected to the second filter cartridge, and is configured to drive the second filter cartridge to switch between a third position and a fourth position, wherein, in the third position, the second filter cartridge is located between the third outlet port and the fourth feed port, and in the fourth position, the second filter cartridge is located outside the area between the third outlet port and the fourth feed port.

6. The mixing device according to claim 5, characterized in that In the case where the mixing device includes the first filtering device, the first filtering device further includes a first flipping mechanism and a first positioning mechanism, the first flipping mechanism and the first positioning mechanism being installed on the first transfer mechanism, the first flipping mechanism being used to drive the first filter cartridge to rotate vertically, and the first positioning mechanism being used to lock the rotation angle of the first filter cartridge; And / or, in the case where the mixing device includes the second filtering device, the second filtering device also includes a second flipping mechanism and a second positioning mechanism, the second flipping mechanism and the second positioning mechanism are installed on the second transfer mechanism, the second flipping mechanism is used to drive the second filter cartridge to rotate vertically, and the second positioning mechanism is used to lock the rotation angle of the second filter cartridge.

7. A turf planting method, characterized in that: The turf planting method comprises: Carry out ground leveling; Laying the turf planting matrix of a preset thickness, wherein the turf planting matrix is ​​obtained by the turf planting matrix preparation method according to claim 1 or 2; sowing grass seeds for turf plants; Regular watering through spraying equipment; When the turf plants reach a preset height, the turf plants are trimmed by a lawn mower.

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