72results about How to "Reduce irrigation water consumption" patented technology

The invention discloses a composite microbial fertilizer containing polyglutamate high-producing strain, a preparation method and an application thereof, belonging to a field of the composite microbial fertilizers. The method comprises preparing Bacillus licheniformis, Bacillus megaterium, Bacillus thuringiensis and Bacillus amyloliquefaciens into bacteria liquid through liquid fermentation, and mixing with complex composite nutrients according to a mass ratio of 1 : 1 to obtain the high-efficiency liquid-state composite microbial fertilizer. On basis of a good phosphate dissolving capability of the Bacillus megaterium, a good pest-resistant capability of the bacillus thuringiensis and a good organic matter degrading capability of the Bacillus amyloliquefaciens, the fertilizer combines performances of excellent water retention, fertilizer retention and non pollution to the environment of gamma-polyglutamate produced by the Bacillus licheniformis in a high yield, so as to achieve a relatively good fertilizer efficiency and relatively few using amount of water, and thus form scientific and reasonable composite fertilizer match.

The invention relates to a cotton cultivation method. The method comprises the following steps: sowing of cotton seeds and laying of drip irrigation pipes: sowing three rows of cotton seeds under a mulching film, laying a drip irrigation pipe on each row; drip irrigation of seedling emergence period water; drip irrigation of bud period water, wherein the maximum water holding amount of the soil in the bud period is 70%-80%, the drip irrigation liquid of the bud period water is clear water or a water and fertilizer mixed solution; drip irrigation of flowering and boll-setting period water, wherein the maximum water holding amount of the soil in the flowering and boll-setting period is 80%-90%, and the drip irrigation liquid of the flowering and boll-setting period water is a water and fertilizer mixed solution; drip irrigation of boll opening period water, wherein the maximum water holding amount of the soil in the boll opening period is 60%-70%, and the drip irrigation liquid of the boll opening period water is clear water or a water and fertilizer mixed solution. The method also comprises the steps: flowering and boll-setting period chemical topping, flowering and boll-setting period cotton spindling controlling, and ripening and defoliating. Water and fertilizer are saved, water, fertilizer and sunlight can be fully utilized by the cotton, the mechanical production is achieved, manpower and material resources are saved, and finally the cotton yield is improved.

The invention provides a novel compound microbial fertilizer containing Pulullan and polyglutamic acid and a preparation method of the novel compound microbial fertilizer. The compound microbial fertilizer comprises a microbial fermentation inoculum, compound nutrients, Pulullan and polyglutamic acid, wherein the microbial fermentation inoculum is prepared by mixing fermentation liquors of bacillus megatherium, bacillus amyloliquefaciens, bacillus thuringiensis, bacillus mucilaginosus and azotobacter chroococcum according to the mass ratio of 1: 1: 1: 1: 1; the compound nutrients comprise nitrogen, phosphorus, potassium, trace elements, organic matters and compound amino acids. By applying the microbial fertilizer, the bud ratio, the plant height and the yield of highland barley can be obviously improved, and the highland barley is excellent in taste. Furthermore, the use level of irrigation water can be reduced by 10% due to the film-forming property of Pulullan and the water-retaining property of polyglutamic acid. In addition, Pulullan and polyglutamic acid are mixed to form a liquid mulch on the surface of soil, so that the use of a plastic thin film can be reduced, an environmental protective role can be played, the labor force is alleviated, and the cost is lowered by 10-20%.

The invention discloses a water-saving micro-irrigation system used for agricultural irrigation. The water-saving micro-irrigation system comprises a water source and a main pipe, wherein the main pipe is connected with the water source through a water pump, a micro sprinkling branch pipe and a drop irrigation branch pipe are arranged at the far end of the main pipe, a micro sprinkler is arranged on the micro sprinkling branch pipe, and a drop irrigation belt is arranged on the drop irrigation branch pipe. The main pipe is also provided with a fertilizer applicator and a filter, wherein a fertilizer amount regulating valve is arranged at the bottom of the fertilizer applicator, and the fertilizer applicator is connected with a fertilizer tank. The main pipe is further provided with a water supply pipe and a reservoir, wherein the water supply pipe and the reservoir are respectively connected with the main pipe. The water-saving micro-irrigation system has the advantages that a low-pressure pipeline system is used for making drop irrigation water wet the most developed area of a crop root system dropwise, slowly, uniformly and quantitatively so that soil in a main root system movement area of a crop can be kept in an optimal water containing state all the time. Drop irrigation is different from traditional surface irrigation which wets the soil in an all-area mode, and therefore drop irrigation can achieve the effects of lowering irrigation water capacity, promoting crop growth and increasing yield.

The invention discloses an efficient micro-ecological bio-fertilizer and its preparation method. The invention relates to a micro-ecological fertilizer and belongs to the technical field of agricultural fertilizers. The efficient micro-ecological bio-fertilizer comprises the following ingredients, by weight, 13-26 parts of lactobacillus plantarum, 10-16 parts of aspergillus niger culture, 1-5 parts of bacillus mucilaginosus microbial inoculum, 1-3 parts of phosphate-solubilizing bacillus megaterium microbial inoculum, 8-15 parts of bacillus subtilis powder, 2-6 parts of aspergillus awamori culture and 1-3 parts of polyglutamic acid. polyglutamic acid on the surface of the fertilizer particles can absorb moisture during the actual use process so as to form hydrogel. Thus, a moisture environment is provided for rapid growth and propagation of the granule interior fertilizer. Meanwhile, the effect of slowly releasing fertility of the bio-fertilizer also can be achieved, and irrigation water capacity in the growth stage of crops can effectively be reduced by more than 13%.

The invention relates to a water level and water quality layering control weir of a drainage ditch of a rice field. Three types of five weir plates in different heights are designed according to the characteristics of each growth period of rice; the heights of the five weir plates are determined according to the buried depth of underground water required by the rice in different growth periods; by combining the five weir plates, outlet control weirs in different heights of the drainage ditches can be formed, and the drainage control requirements of rice reviving, early stage of tillering, late stage of tillering, booting stage, tasseling stage, milky ripeness stage, yellow ripening stage and late stage of fertilizing; two hand grabs are arranged on the lateral surface of each weir plate; an arc rubber waterstop band is arranged at the bottom of each weir plate which ensures overall seamless joint water stop among the weir plates; doorframe grooves are arranged on two sides of the drainage ditch; rubber waterstop bands are arranged on two sides in the doorframe grooves; the weir plates can be slidingly taken out or placed into the frame grooves and cannot leak water; two pull rod handles for taking and placing the weir plates are additionally arranged; and rhombus rings of the pull rod handles can be sleeved with hand grabs on the weir plates to place or take out the weir plates from the doorframe grooves on two sides of the drainage ditch. The invention has the advantages that the combined height of the weir plates cannot cause the flooding damage on the rice, can be used for retaining nitrogen, phosphor and other nutrients in the rice field and reducing the pollution of high-concentration nitrogen and phosphor in the drain to a water body. The invention saves the water consumption for irrigation, improves the utilization rate of underground water resources, has favorable waterstop effect among the weir plates and is convenient to manually operate.

The invention discloses an alga-rich trench system for farmland tail water treatment and a treatment method. The alga-rich trench system comprises an alga-rich trench, a flow pusher, a water level control gate, a draining communicating culvert pipe, an aquatic organism pond and a regulating station and is characterized in that farmland tail water discharged from farmland enters the alga-rich trench system, the flow speed of the farmland tail water is kept by the action of the flow pusher, an algal-bacterial symbiotic system in the trench purifies the tail water, the purified water enters the aquatic organism pond through the draining communicating culvert pipe for further purification, and the water processed by the trench-pond system is lifted to the farmland by the regulating station for recycling. The alga-rich trench system has the advantages that the farmland tail water is deeply purified by the trench-pond combination process, a common trench is modified into the alga-rich trench, the pollutant removing ability of the trench is increased effectively, the processed tail water is lifted back to the farmland for recycling, purposes of saving irrigation water and nitrogen and phosphorus resources, reducing the amount of drained water, reducing water environment pollution pressure, and the like are achieved.

The invention provides an irrigation method and device based on the Internet of Things, and is used for solving the technical problems that an existing irrigation method is high in labor input, and water resources are wasted. The method comprises the steps that a server receiving current soil water content uploaded by a soil moisture sensor and meteorological information uploaded by a meteorological sensor, and determines precipitation amount in a preset time period based on the meteorological information; receiving the image data of the crop area uploaded by the image acquisition device, andinputting the image data into the crop type identification model to obtain a crop type corresponding to the crop area; based on the crop variety and the current soil water content, determining the actual water demand of the crop variety within a preset time period; calculating a first difference value between the precipitation and the actual water demand, and then determining the water drainage states of the multiple irrigation devices in the crop area. According to the irrigation method provided by the invention, a targeted irrigation scheme can be automatically provided, and irrigation wateris effectively saved.

The invention relates to a water-saving and fertilizer-saving method used for cultivating rice in a straw mulching mode. The earth surface of a paddy field is uniformly covered with wheat straw or oilseed rape straw obtained after preceding crops are harvested; after irrigation and fertilization are conducted on the rice, the straw in the field is used for automatically absorbing water and fertilizer; after irrigation drying, the water and the fertilizer absorbed by the straw are released slowly, definite humidity in the field is kept, and therefore growth requirements of the rice are met; thus, the time interval between current irrigation and next irrigation can be prolonged, and the number of irrigation and the quantity of the fertilizer for the lifetime of the rice can be reduced. Comparative trials show that by the adoption of the technology of planting the rice by covering the whole earth surface with the straw, irrigation water capacity can be reduced by 20%-30% per mu, 90 m<3>-130m<3> can be saved per mu, the utilization rate of the fertilizer is improved by 8%-10%, and 15%-20% of the fertilizer is saved. The method has the advantages that raising of seedlings, transplanting of the seedlings, and soil preparation conducted in a ploughing and raking mode are omitted, and labor, cost and rice nursery beds are saved.

The invention provides a preparation method for a water retention type humic acid compound fertilizer. The preparation method comprises the following steps: firstly, mixing acrylic acid, a cross-linking agent, an accelerant, a neutralizing agent, water, humic acid, urea, diammonium phosphate and potassium chloride at a certain weight ratio; continuously agitating and reacting; then, drying a reactant at a certain temperature; crushing and sieving to prepare the water retention type humic acid compound fertilizer. According to the method, a macromolecular network cross-linking structure formed by cross-linking and polymerizing the humic acid and the acrylic acid is utilized; after the water retention type humic acid compound fertilizer is applied to soil, a lot of water molecules can be absorbed and are preserved in a colloid manner, so that the irrigation water capacity and the irrigation times are reduced; the requirements of stably supplying the water to a plant root system are met; the production process is simple, needed equipment is less and the preparation cost is low; the water retention type humic acid compound fertilizer is convenient to popularize and promote and is especially applicable to arid regions.

The invention relates to the technical field of sprinkling irrigation and discloses a combined multi-pipe sprinkling irrigation device. The combined multi-pipe sprinkling irrigation device comprises awater pump and is characterized in that water outlet pipes are fixedly connected to the output end of the water pump and comprise a transverse water outlet pipe and a longitudinal water outlet pipe,a rectangular water outlet pipe A is arranged in the middle of the transverse water outlet pipe, rectangular water outlet pipes B are arranged at two ends of the longitudinal water outlet pipe, the left end and the right end of the transverse water outlet pipe and the front end and the rear end of the longitudinal water outlet pipe are provided with water discharge mechanisms A, the four right-angle positions of the rectangular water outlet pipes B are provided with water discharge mechanisms B, and the four right-angle positions of the rectangular water outlet pipe A are provided with water discharge mechanisms C. The combined multi-pipe sprinkling irrigation device has the advantages that water impacts fan blades to allow the fan blades to rotate, the fan blades drive connecting rods andfan plates to rotate, the fan plates rotate at high speed in water retaining pipes to allow the water entering the water retaining pipes to spray out towards the outer side, and only the farmland inthe semicircular trajectory of the inner sides of first spraying pipes can be irrigated when the moving trajectory of the water sprayed out of the water retaining pipes is semicircular.

The invention relates to a method for stably supplying soil moisture to plants with shallow root systems. The moisture can be stably supplied to soil for the plants with the shallow root systems by the aid of cultivation grooves by the method. The method includes steps of preparing air-dried soil and fertilizers which are required by growth of the plants with the shallow root systems; filling prepared cultivation media into the cultivation grooves, parallelly placing upper microporous clay pipes and lower microporous clay pipes into the cultivation grooves; cultivating seeds or seedlings of the plants with the shallow root systems in the centers of the cultivation grooves; enabling the lower microporous clay pipes to automatically supply the moisture to the root systems under the effect of change of water potential of the soil. The method has the advantages that change of water potential of different position points of the soil inside the cultivation grooves can be instantly responded, and water can be timely supplemented, so that the soil moisture can be stably supplied to the shallow root systems at various layered depths and within various transverse ranges to be absorbed and utilized by the shallow root systems, and drought stress harm to the plants due to incapability of timely responding to deficiency of soil moisture can be prevented; an obvious water saving effect can be realized; fertilizer nutrient can be guaranteed against being lost to pollute surrounding soil and water sources along with flowing of the water.

The invention discloses a jujube tree water-saving cultivation method, and relates to the field of jujube tree cultivation. The jujube tree water-saving cultivation method comprises the steps that soil preparation and fertilization are carried out; ridging is carried out and jujube trees are planted in furrows; a water irrigation system is laid, according to the water irrigation system, longitudinal sand pipes are arranged at the two sides of each jujube tree, each sand pipe is located in the corresponding furrow, and the multiple sand pipes are distributed in the row direction of the jujube trees; and each sand pipe is filled with fine sand, and the particle size of the fine sand is 2-3 mm. According to the jujube tree water-saving cultivation method, efficient water collection infiltration of micro-rainfall is achieved, the utilization rate of rainfall is increased, the irrigation water consumption can be effectively reduced, the water seepage speed and depth are scientific, root systems of the jujube trees on the shallow surface layer absorb water sufficiently, rapid growth of the jujube trees is facilitated, and the yield of jujubes is increased.

The invention discloses a liquid fertilizer mulching film for increasing the moisture utilization rate for corn. The liquid fertilizer mulching film is prepared from the following raw materials in parts by weight: 35-40 parts of sweet potato powder, 18-20 parts of kelp residues, 16-18 parts of modified starch solution, 10-15 parts of coffee beans, 4-6 parts of a composite microbial bacterial agent, 22-25 parts of peanut meal, 28-32 parts of bone meal and a proper amount of water. The liquid fertilizer mulching film disclosed by the invention has a remarkable function in increasing the moisture utilization rate of soil, on one hand, the saturated hydraulic conductivity of soil can be improved, on the other hand, the soil moisture evaporation rate can be inhibited, an excellent water-retaining property can be achieved, the irrigation water amount can be reduced, an excellent energy conservation and emission reduction function is achieved, and meanwhile as the mulching film is made of natural organic matters, the content of nutrients which can be absorbed by soil can be increased when the mulching film is completely degraded, and growth of corn can be promoted.

An agricultural mechanization production method of drill tillage and drill sowing, relating to an agricultural mechanization production process, belonging to agricultural technique field, sowing on the loose soil which is drill-tillage. The invention can realize straw-return to -field once-for-all by mechanical device, avoiding the shortcoming of nitrogen adsorption influencing the product yield because of the mechanical full-scale straw-return to-field; reducing the water evaporation from arid area and incidence rate of soil and water loss and sand storm, lightening the extent of injury by sand storm, and generating little damage to surface soil; reducing the irrigation water consumption in arid area, slowing down the descent rate of groundwater; being good for keeping geothermal for hydrographic net area, preventing wheat frost-damage; saving greatly tillage energy consumption and reducing planting cost. Straw-return to -field can be carried out in all the rice-producing area, which prevents soil from further hardening and avoids wasting soil organic matter by burning straw.

The invention discloses a circulating irrigation water saving method and system. A micro-nano ozone bubble generation device is used for disinfecting and oxygenating irrigation water, and then the irrigation water is conveyed to an irrigation device again for use. An irrigation water recycling system comprises a cultivation matrix or a perforated cultivation bag filled with the matrix, the cultivation matrix or the perforated cultivation bag filled with the matrix is located on the field ground or a facility cultivation groove, an inclined ditch is arranged below the field ground or facility cultivation groove, a plastic drip irrigation belt is arranged beside the inclined ditch, the plastic drip irrigation belt is located in the cultivation matrix or the perforated cultivation bag filledwith the matrix, the plastic drip irrigation belt is connected with a water inlet pipeline, the water inlet pipeline is connected with a water storage tank, the micro-nano ozone bubble generation device and a circulating pipeline are arranged in the water storage tank, the circulating pipeline is connected with a recycling tank, a recycling main pipe is arranged in the recycling tank, and the recycling main pipe is communicated with the inclined ditch. The system is simple in structure and high in automation degree, can be applied to circulating water irrigation of field production or facilityproduction and is convenient to popularize on a large scale.

The invention relates to a cultivation groove capable of stably supplying soil moisture to plants with shallow root systems. The cultivation groove comprises a groove. The upper end of the groove is open while the lower end of the groove is closed, cultivation media are filled in the groove, an upper microporous clay pipe is arranged in the groove and is positioned in the certain cultivation media, the certain cultivation media are separated from the upper end surface of the groove by the distances ranging from 5cm to 10cm, a lower microporous clay pipe is arranged below the upper microporous clay pipe and is separated from the upper microporous clay pipe by a certain distance, and the upper microporous clay pipe and the lower microporous clay pipe are horizontally arranged in the groove, are respectively parallel to the upper end surface and the lower end surface of the groove and are jointly communicated with an external water supply device. The cultivation groove has the advantages that change of water potential of different position points in soil in the cultivation groove can be responded instantly, so that water can be timely replenished and can flow to optional positions in the groove in a permeation manner under the effects of capillary pipes, the soil moisture can be stably supplied to the plants, the water required by the plants can be truly dynamically and stably supplied to the plants, and drought stress injury to the plants due to the fact that soil moisture is deficient but cannot be timely responded can be prevented.

The invention provides a polder area water circulation rice field non-point source pollution treatment system which comprises a polder area. The polder area is composed of a polder embankment, a polder area gate station, an outside-polder river channel and an inside-polder river channel; the polder area gate station is arranged at the communication part of the outside-polder river channel and the inside-polder river channel; field parcels which are separated by ridges and are perpendicular to the inside-polder river channel are arranged in the polder area; and irrigation of crops in the field parcels is conducted by guiding water from the inside-polder river channel through an irrigation pump station and an irrigation pipeline, farmland recession water in the field parcels returns to the inside-polder river channel through ecological ditches, and therefore water circulation is formed. According to the polder area water circulation rice field non-point source pollution treatment system, the characteristics of the polder area can be fully utilized, a relatively closed water body environment is formed, and a water body in the polder area is recycled; by combining a digitally-controlled precise irrigation and drainage system and a green prevention and control system, water and nutrients can be recycled under daily working conditions, the irrigation water consumption, the chemical fertilizer consumption and the pesticide consumption of agricultural production are reduced, the non-point source pollution load is reduced, it is guaranteed that the farmland recession water is discharged to the outside-polder river channel in order under the rainstorm working condition, and the influence on the surface water environment is reduced.

The invention provides a soil conditioner and a preparation method and application thereof, and relates to the field of soil improvement. The soil conditioner comprises the following components in percentage by weight: 88%-95% of purified attapulgite, 3%-8% of fulvic acid, 1%-2% of nanoscale carbonized astragalus residue powder, 0.5%-1% of nanoscale modified cellulose powder and 0.5%-1% of monosodium glutamate tail liquid. The soil conditioner can effectively increase the content of organic matters, available phosphorus and available potassium in soil, increase the pH value of the soil and reduce the content of heavy metals chromium and cadmium in the soil, so that the soil structure is effectively improved, the crop growth is promoted, and the quality of agricultural products is improved.

The invention discloses a mulching film covering planting method for interplanting spring sowing peanuts by using winter wheat. The method comprises the steps that when the winter wheat is sowed, a peanut interplanting ridge is built, a drip irrigation tape is laid in the center of the ridge, film covering is conducted in the center of the ridge, a winter wheat tape is sowed in the ridge, and thenpeanuts are interplanted on the ridge in the next spring. According to the mulching film covering planting method, through a mode that mulching film covering is conducted on the reserved peanut interplanting row on the ridge in advance, two aspects of effects of film covering and preservation of soil moisture, and rainwater collection on the ridge surface are achieved on wheat growth in the ridge, then the irrigation mode of drip irrigation under covered film is combined, and the irrigation water is greatly reduced; in the peanut season, the effects of warming and preservation of soil moisture, and water saving and irrigation of the mulching film on the peanut growth are further promoted, and the method helps to increase the yield and save water. According to the established water-savingplanting mode, the irrigation water amount can be greatly lowered, the water use efficiency is remarkably improved, the yield of wheat and peanuts can be increased, and the method has the positive popularization significance.

The invention discloses a composite microbial fertilizer comprising, by weight, 15-30 parts of a lactobacillus plantarum mixed inoculant, 10-16 parts of an aspergillus mixed culture substance, 1-3 parts of a bacillus megaterium var phosphaticum inoculant, 5-10 parts of powder of bacillus subtilis and 0.5-1 part of polyglutamic acid. The polyglutamic acid on surfaces of fertilizer granules can absorb moisture during actual usage process to form hydrogel, thereby providing a moisture environment for rapid growth and reproduction of the fertilizer inside the granules and meanwhile achieving a slow-release effect of fertility of bio-bacteria.

The invention relates to a fertilization and irrigation method capable of achieving greenhouse organic vegetable field greenhouse gas emission reduction. According to the method, before plowing and field planting of an organic vegetable field, organic fertilizer capable of being converted into 300-450 kg / hm2 pure nitrogen is applied to greenhouse organic vegetable field soil to be processed in a one-time mode, and / or total irrigation amount in the whole growth period of vegetable is made to be 353-426 mm, so that the emission of N2O from soil is reduced. According to the method, the application amount of organic fertilizer is reduced by 1 / 3 than usual, total irrigation amount in the whole growth period is reduced by 17% than usual, the emission of N2O from soil is reduced by about 22-54%, and the emission of N2O from soil of the greenhouse organic vegetable field can be reduced by 79% by means of the fertilization and irrigation method.

The invention relates to the technical field of rice planting and discloses a quality-ensuring aroma-ensuring high-yield cultivation method of rice, comprising determining seeding time, applying fertilizers, carrying out water-saving cultivation, harvesting, sun-curing rice and other steps. The seeding time of Nong Xiang 32 is optimized, the negative effect of the high-temperature summer environment in August upon the fruiting rate and yield of Nong Xiang 32 in earing and flowering stage is avoided, the fruiting rate and yield of Nong Xiang 32 are increased, application rate of nitrogen fertilizer and quantity of irrigation water are decreased, agricultural area-source pollution of rice is relieved at the premise of saving water and saving cost, the anti-lodging capacity of Nong Xiang 32 plants is improved, the rice from Nong Xiang 32 has better aroma and taste, and commercial value of Nong Xiang 32 is increased.

The invention relates to a vegetable crop row spacing separation device, which comprises a first pouch (2), a second pouch (3), a third pouch (4), valves (5) and an air charging system, wherein, the first pouch (2), the second pouch (3) and the third pouch (4) are jointed in an inverted step form and provided with the valves (5) fixedly jointed with the pouches, the valves (5) arranged on the second pouch (3) and the third pouch (4) are jointed with the air charging system, and the first pouch (2) is provided with micropores (1). The air charging system is arranged as an air pump (6); the lateral sections of the first pouch (2), the second pouch (3) and the third pouch (4) are arranged as rectangle or ellipse. Therefore, the irrigation water consumption is reduced, the fixing is firm, and the laying and withdrawal have low labor intensity.

The invention provides a hard slope type revetment formed by in situ planting type ecological transformation of a revetment. By performing slope cutting and perforating on a hard revetment, a part ofthe original hard revetment is reserved to serve as a support framework; and compared with a mode of performing ecological reconstruction on a river bank by completely dismantling the hard revetment,the engineering quantity can be reduced. Cut and crushed hard blocks can be placed in a newly-arranged ecological grid earth and stone cage to be subjected to in situ utilization and continuously playa role in stabilizing a side slope, thereby reducing the cost and reducing the engineering waste. When the hard slope type revetment is perforated, non-perforated areas near holes form a hard latticeframe mesh, and the hard lattice frame mesh and the ecological grid earth and stone cage structure placed in the lattice frame form a whole, and can together provide strength; and furthermore, the grid earth and stone cage structure has the properties of scouring resistance, corrosion resistance, wear resistance, high strength, high adaptability to foundation deformation, and the like, and can ensure the overall stability of the transformed bank slope.

The invention discloses an intelligent sprinkling irrigation method and system based on edge machine learning. The method comprises the steps of firstly obtaining a prediction model of evapotranspiration through the training of a GBRT (Gradient Basis Regression Tree) according to the historical data of a sprinkling irrigation region, and then calculating the water demand of crops according to a water balance formula; and finally, if the real-time soil humidity is lower than a set threshold value, driving sprinkling irrigation equipment to directly perform sprinkling irrigation according to a set sprinkling irrigation instruction or a sprinkling irrigation instruction of a user, otherwise, driving the sprinkling irrigation equipment to perform sprinkling irrigation according to crop water requirements. According to the intelligent sprinkling irrigation method, on-demand sprinkling irrigation and real-time monitoring can be realized, the crop growth condition of a sprinkling irrigation site can be mastered in time, and the water resource utilization rate is improved.

The invention discloses a water conservancy irrigation system. The water conservancy irrigation system comprises an irrigation control center, a soil moisture detecting module set, an irrigation pipeline set and a valve set, wherein the irrigation pipeline set comprises a main pipe, a plurality of branched pipes and a plurality of capillary tubes; a water pressure detecting module which has a corresponding number is arranged on each branched pipe; the plurality of capillary tubes are connected to the plurality of branched pipes; a drip irrigation hole is formed in each capillary tube; the valve set comprises a plurality of solenoid valves; each solenoid valve is arranged at a part where the branched pipe is connected to the main pipe; the soil moisture detecting module set comprises a plurality of soil moisture detecting modules; the soil moisture detecting modules are arranged between every two adjacent capillary tubes at the same side of each branched pipe; the irrigation control center comprises a computer. According to the system, farmland is irrigated in a drip irrigation manner; and moreover, the drip irrigation can be intelligently controlled based on soil moisture, so thatthe purpose of water saving can be achieved on the basis that crops can grow normally.

The invention relates to a method for applying humate to sandy soil water-saving irrigation. According to different sand content of sand land, 100-1,000 kg of humate is applied per mu in the sandy land, and the humate is rotatably cultivated through arable land and a rotary cultivator, and the humate is located at a depth of 18-30 cm below the ground and is mixed thoroughly with sandy soil. The method is characterized in that that the water seepage speed of the sand land is decreased, the infiltration speed of the water is reduced or prevented by mixing the humate in the sand soil, so that theirrigation speed of the sand land is increased. When the irrigation is carried out, the lower infiltration speed is low, the water storage can be uniformly stored in the field ridge range, then the infiltration is carried out uniformly, meanwhile, the water retention capacity is improved, and the water saving effect is achieved. Compared with the prior art, the method greatly reduces the irrigation water consumption, and has important popularization and application values for areas lacking in water resources.