Sowing method of small seeds and seed bowl plate

Abstract

The invention relates to the technical field of seed sowing, in particular to a small seed sowing method and a seed bowl tray, and the small seed sowing method comprises the following steps: firstly purifying and pelleting small seeds, then sowing the pretreated seeds in the seed bowl tray, and finally sowing the seeds in a field by adopting a double-film technology. According to the invention, the small seeds are sown in the seed bowl plate made of the degradable material, and a double-layer plastic film mulching technology is combined, so that the problems that weeds jump out of film holes and seedlings are brought out during weeding are effectively avoided, and the emergence rate of the small seeds is greatly improved; the sowing method of the small-grain seeds has the advantages of being low in seedling raising cost, good in sowing straight root system, good in yield and excellent in quality.

Description

Technical Field

[0001] The invention relates to the technical field of seed sowing, and relates to a sowing method for tiny seeds and a seed pot tray. Background Art

[0002] Among crops, vegetables, flowers, Chinese medicinal materials, cash crops, forestry and other plants, there are many types of tiny seeds with a thousand-grain weight of less than 0.5 grams and their shapes vary greatly. For example, plants such as Luobu Ma and Stevia will bring great difficulties to the sowing work in planting production. At the same time, when tiny seeds are planted under mulch covering conditions, the sowing nozzle of the sowing device will open a larger hole in the mulch. The growth of native weed seeds is generally much stronger than that of the crops. After germination, the weed seeds will grow in large quantities from the sowing holes of the mulch before the crops. Manual weeding will bring out seedlings, and is inefficient and costly. If seedlings are raised in a greenhouse, there will also be problems of high cost, long time and high labor intensity.

[0003] Apocynum venetum is a local medicinal material in Xinjiang, with an area of ​​about 2 million mu. In 1972, Apocynum venetum was officially included in the National Pharmacopoeia and was included in the catalog of health foods in 2017. Apocynum venetum is an excellent economic plant that integrates textile, medicinal, health and ecological values. Apocynum venetum is a pioneer plant for saline-alkali sandy wasteland and can also be planted as an ornamental plant; Apocynum venetum extract has antioxidant, blood pressure lowering, anti-lipid peroxidation, anti-depression, anti-hyperlipidemia, sedative, diuretic and arteriosclerosis prevention effects; Apocynum venetum leaves can be used as medicine and can also be made into health tea; Apocynum venetum fiber is known as the "king of wild fibers" and is a rare natural fiber material. At present, the demand for Apocynum venetum is large. From the perspective of the industrial chain, the production and planting links are relatively weak, which has seriously restricted the high-quality development of Xinjiang's Apocynum venetum industry. It is difficult and time-consuming for Apocynum venetum to grow into a forest, and artificial scientific planting is the key to ensuring a stable supply of goods. At present, the main method of artificial planting is seedling transplanting. In February every year, seedlings are grown in a greenhouse using plug trays. In April, when the seedlings are about 10 cm, they are trained for half a month and then transplanted according to the requirement of 1m×3m spacing. The greenhouse plug tray seedling method has the problems of high seedling cost, long time and high labor intensity.

[0004] Stevia, scientifically known as Stevia rebaudiana, is a plant of the Asteraceae family, native to the alpine grasslands at the junction of Paraguay and Brazil in South America. In China, stevia has been introduced and planted in Beijing, Hebei, Shaanxi, Jiangsu, Fujian, Hunan, Yunnan and other places. The leaves of stevia are used as traditional Chinese medicine and have many functions and effects. For example, stevia can promote the production of body fluids and quench thirst, mainly treating diabetes. Stevia contains stevioside, which can control blood sugar, lower blood pressure, promote metabolism, and has the effect of lowering blood sugar and blood pressure. At present, the production of stevia is mainly based on the scattered operation of farmers, lacking concentrated and continuous planting, and the seed germination rate of outdoor planting is low, which affects the development of the industry. Summary of the invention

[0005] The present invention provides a sowing method and a seed pot tray for tiny seeds, which overcome the deficiencies of the above-mentioned prior art and can effectively solve the problem of low germination rate in the field planting of existing tiny seeds.

[0006] One of the technical solutions of the present invention is achieved by the following measures: A method for sowing micro-seeds is carried out as follows: In the first step, the micro-grain seeds are purified and screened to obtain seeds with good germination potential and seeds with weak germination potential, and the seeds with good germination potential are pelletized to obtain pre-treated micro-grain seeds; The second step is to fill each seed pot body of the seed pot tray with a matrix material, sow the pre-treated micro-grain seeds on the matrix material of the seed pot body, and then cover a layer of vermiculite particles, and use a quick-dissolving film to cover the entire seed pot tray; The third step is to lay drip irrigation belts and the first mulch film in the field according to the row spacing of the sowing rows during sowing, cut the seed pot trays encapsulating the pre-treated micro-seeds into individual seed pots, open film holes on the surface of the first mulch film, sow each seed pot in the film hole and press it down, so that the sowing rows with the seed pots are lower than the ground, and then lay the second mulch film; The fourth step is to wait for the seeds to germinate after the sowing is completed.

[0007] The following is a further optimization and / or improvement of one of the above-mentioned technical solutions: In the first step, the purification comprises one or more of shelling with a shelling machine, wing removal with a skinning machine, and pappus removal with a pappus separator.

[0008] In the first step above, the specific operation of the pelletization treatment is to soak the seeds with good germination potential in water to obtain pre-wet seeds, mix the pre-wet seeds with an adhesive to obtain seeds coated with the adhesive, and granulate and dry the seeds coated with the adhesive to obtain pre-treated micro-grain seeds with a particle size of 1.5 mm to 2.0 mm.

[0009] The volume ratio of the pre-wetted seeds to the adhesive is 1:1 to 5, and the adhesive is one of starch, talcum powder and gum arabic.

[0010] In the second step, the matrix material is mixed by weight of 100 parts of soil conditioner, 1 to 4 parts of vermiculite particles, 1 to 5 parts of water retaining agent and 1 to 4 parts of perlite.

[0011] The above-mentioned soil conditioner is obtained according to the following method: first, water is added to the cotton wool produced during cotton processing and cotton seed stripping to make the water content of the cotton wool be 45% to 60%, and then the water-containing cotton wool is decomposed by decomposing bacteria for 2 to 3 months to obtain the soil conditioner, wherein the amount of decomposing bacteria added is 0.1% to 0.5% of the weight of the water-containing cotton wool.

[0012] In the second step, the amount of matrix material added is 75% to 80% of the volume of the seed pot, and the number of pretreated micro-seeds sown in the seed pot is 3 to 10.

[0013] In the third step, the diameter of the film hole is smaller than the diameter of the seed pot, and the sowing row with the seed pot is 3 cm to 5 cm below the ground.

[0014] The second technical solution of the present invention is achieved through the following measures: a seed pot plate for implementing a sowing method for micro-grain seeds, comprising a film-covering board, a seed pot body and a quick-dissolving film, wherein the film-covering board is provided with a plurality of mounting holes, and a seed pot body is integrally provided on the lower side of the film-covering board corresponding to the position of each mounting hole, and the seed pot body is in a U-shape with an opening upward, and a plurality of convex ridges are provided at intervals along the circumference on the inner side of each seed pot body, and a quick-dissolving film is provided on the upper side of the film-covering board.

[0015] The following is a further optimization and / or improvement of the second technical solution of the above invention: The materials of the above-mentioned film-covered plate and the seed pot body are both made of pulp material. The inner diameter of the seed pot body is 3cm to 6cm, and the height is 7cm to 10cm.

[0016] The present invention sows tiny seeds in a seed pot tray made of degradable material and combines it with a double-layer mulch film covering technology, effectively avoiding the problem of weeds jumping out of the film holes and bringing out seedlings when pulling out weeds, greatly improving the emergence rate of tiny seeds. The sowing method of tiny seeds of the present invention has the characteristics of low seedling raising cost, good sowing straight root system, good yield and excellent quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 This is a schematic diagram of the main structure of the optimal embodiment 15 of the present invention.

[0018] Attached Figure 2 It is a schematic diagram of the top view of the structure of the optimal embodiment 15 of the present invention.

[0019] The codes in the attached drawings are: 1 is the film-covered plate, 2 is the seed pot body, 3 is the instant film, and 4 is the convex ridge. DETAILED DESCRIPTION

[0020] The present invention is not limited by the following embodiments, and the specific implementation method can be determined according to the technical scheme of the present invention and the actual situation. Unless otherwise specified, the various chemical reagents and chemicals mentioned in the present invention are all chemical reagents and chemicals known and used in the prior art; unless otherwise specified, the percentages in the present invention are all mass percentages; unless otherwise specified, the solutions in the present invention are all aqueous solutions with water as the solvent, for example, hydrochloric acid solution is a hydrochloric acid aqueous solution; the normal temperature and room temperature in the present invention generally refer to a temperature of 15°C to 25°C, and are generally defined as 25°C.

[0021] The present invention will be further described below in conjunction with embodiments: Embodiment 1: As attached Figure 1 , 2 As shown, the sowing method of the micro-seeds is carried out as follows: In the first step, the micro-grain seeds are purified and screened to obtain seeds with good germination potential and seeds with weak germination potential, and the seeds with good germination potential are pelletized to obtain pre-treated micro-grain seeds; The second step is to fill each seed pot body 2 of the seed pot tray with a matrix material, sow the pretreated micro-grain seeds on the matrix material of the seed pot body 2, and then cover a layer of vermiculite particles, and use a quick-dissolving film 3 to cover the entire seed pot tray; The third step is to lay drip irrigation tapes and the first layer of mulch film in the field according to the row spacing of the sowing rows during sowing, cut the seed pot trays encapsulating the pre-treated micro-seeds into individual seed pot bodies 2, open film holes on the surface of the first layer of mulch film, sow each seed pot body 2 in the film hole and press it down, so that the sowing row with the seed pot body 2 is lower than the ground, and then lay the second layer of mulch film; The fourth step is to wait for the seeds to germinate after the sowing is completed.

[0022] In the present invention, for seeds with weak bud potential, disinfection and sterilization and bud awakening treatment can generally be used, wherein the disinfection and sterilization includes one of heat treatment, radiation disinfection and microbial disinfection, the heat treatment is specifically soaking in hot water at 50°C to 60°C for 20min to 30min, the radiation disinfection is specifically disinfected by ultraviolet irradiation for 5min to 15min, and the microbial disinfection is specifically disinfected by soaking with Bacillus or Trichoderma for 20min to 30min; bud awakening includes temperature induction or hormone induction, temperature induction is induction treatment at low temperature or high temperature, and hormone induction is soaking the seeds in an aqueous solution of plant hormones.

[0023] Embodiment 2: As an optimization of the above embodiment, in the first step, purification includes one or more of shelling with a shelling machine, wing removal with a skinning machine, and pappus removal with a pappus separator.

[0024] Example 3: As an optimization of the above example, in the first step, the specific operation of the pelletization treatment is to soak the seeds with good germination potential in water to obtain pre-wet seeds, mix the pre-wet seeds with an adhesive to obtain seeds coated with the adhesive, and granulate and dry the seeds coated with the adhesive to obtain pre-treated micro-grain seeds with a particle size of 1.5 mm to 2.0 mm.

[0025] Example 4: As an optimization of the above example, the volume ratio of the pre-wet seeds to the adhesive is 1:1 to 5, and the adhesive is one of starch, talc and gum arabic.

[0026] Example 5: As an optimization of the above example, in the second step, the matrix material is mixed by weight of 100 parts of soil conditioner, 1 to 4 parts of vermiculite particles, 1 to 5 parts of water retaining agent and 1 to 4 parts of perlite.

[0027] Example 6: As an optimization of the above example, a soil conditioner is obtained by the following method: first, water is added to the cotton wool produced during cotton processing and cottonseed stripping to make the moisture content of the cotton wool be 45% to 60%, and then, the water-containing cotton wool is decomposed by decomposing bacteria for 2 to 3 months to obtain a soil conditioner, wherein the amount of decomposing bacteria added is 0.1% to 0.5% of the weight of the water-containing cotton wool.

[0028] Embodiment 7: As attached Figure 1 , 2 As shown, as an optimization of the above embodiment, in the second step, the amount of matrix material added is 75% to 80% of the volume of the seed pot 2, and the number of pretreated micro-grain seeds sown in the seed pot 2 is 3 to 10.

[0029] Embodiment 8: As attached Figure 1 , 2 As shown, as an optimization of the above embodiment, in the third step, the diameter of the membrane hole is smaller than the diameter of the seed pot 2, and the sowing row with the seed pot 2 is 3 cm to 5 cm below the ground.

[0030] Compared with the prior art, the present invention has the following beneficial effects: First, in the present invention, during sowing, a first layer of ground film and a second layer of ground film are used for double film covering, and the sowing row with the seed pot body 2 is pressed out of a ground groove 3 cm to 5 cm below the ground surface. The actual principle is to form a miniature greenhouse in the field to keep warm and avoid external interference. At the same time, due to the laying of the first layer of ground film, the seed pot body 2 is pressed into the soil through the ground film, and the pot wall of the seed pot body 2 fits tightly with the film hole, avoiding the long-standing problem of weeds jumping out of the film hole and taking out the seedlings when pulling out the weeds, thereby greatly improving the seed germination rate. At the same time, compared with the seedling transplanting method in the greenhouse, the sowing method of the micro-grain seeds of the present invention has the characteristics of low seedling raising cost, good sowing straight root system, good yield and excellent quality; Second, in the present invention, the pretreatment of the micro-seeds and the sowing in the seed pot can be completed under factory conditions, and the operating conditions and sowing environment are better than the field environment; in addition, the seed pot is made of pulp material, and the pH value of the pulp material is neutral during pulping, and the pulp material has a certain filtering effect on the field soil water infiltrating into the seed pot body 2, and the alkaline soil is more conducive to the germination of seeds; Third, in the present invention, the matrix material in the seed pot body 2 is equivalent to placing the seeds in a nutrient medium, providing an ideal soil environment for the germination process and seedling stage of the seeds, and the sowing depth is consistent, overcoming the constraints of field soil conditions and sowing technology level, and is more conducive to uniform seedlings and strong seedlings, achieving high quality and high yield; Fourth, for seeds with weak bud vigor, they can generally be disinfected and sterilized, and then sown after being induced to wake up the buds. This is more conducive to improving seed vitality and stress resistance, and can promote early, uniform and strong germination, laying the foundation for high-quality and high yields.

[0031] Embodiment 9: As attached Figure 1 , 2 As shown, the sowing method of the micro-seeds is carried out as follows: The first step is to select the apocynum venetum micro-grain seeds, shell the apocynum venetum micro-grain seeds with a shelling machine, remove the wings with a peeling machine, and remove the pappus with a pappus separator, and then screen to obtain seeds with good bud potential and seeds with weak bud potential, soak the seeds with good bud potential in water to obtain pre-wet seeds, mix the pre-wet seeds with an adhesive (starch, talcum powder and gum arabic) in a volume ratio of 1:1 to obtain seeds coated with the adhesive, and granulate and dry the seeds coated with the adhesive to obtain pre-treated micro-grain seeds with a particle size of 1.5 mm to 2.0 mm; The second step is to fill each seed pot body 2 of the seed pot tray with a matrix material of 75% of the volume of the seed pot body 2, sow 3 pre-treated micro-seeds on the matrix material of the seed pot body 2, and then cover it with a layer of vermiculite particles, and use a quick-dissolving film 3 to cover the entire seed pot tray, wherein the matrix material is a mixture of 100 parts of soil conditioner, 1 part of vermiculite particles, 1 part of water retaining agent and 1 part of perlite in weight; the soil conditioner is obtained by the following method: first, water is added to the soil fly lint produced during cotton processing and cotton seed stripping, so that the water content of the soil fly lint is 45%, and then the water-containing soil fly lint is decomposed for 2 months under the action of decomposing bacteria to obtain the soil conditioner; the amount of decomposing bacteria added is 0.1% of the weight of the water-containing soil fly lint; The third step is to sow in April. During sowing, drip irrigation belts and the first layer of ground film are laid in the field according to the row spacing of the sowing rows. The seed pot trays encapsulating the pre-treated micro-seeds are cut into individual seed pot bodies 2. Film holes smaller than the diameter of the seed pot bodies 2 are opened on the surface of the first layer of ground film, and soil holes of the same size as the seed pot bodies 2 are pressed out. Each seed pot body 2 is sown in the soil holes in the film holes. The sowing rows are pressed with heavy pressure wheels in the form of ground grooves, so that the sowing rows are 3 cm below the ground, and then the second layer of ground film is laid; The fourth step is to drip water normally after sowing. Wait for 5 days for the ramie seeds to germinate and for the cotyledon stage to end before removing the second layer of mulch.

[0032] In this Example 9, after the sowing method of the micro-grain seeds of the present invention was adopted for the Apocynum venetum, the seed germination rate was 85%.

[0033] Embodiment 10: As attached Figure 1 , 2 As shown, the sowing method of the micro-seeds is carried out as follows: The first step is to select the apocynum venetum micro-grain seeds, shell the apocynum venetum micro-grain seeds with a shelling machine, remove the wings with a peeling machine, and remove the pappus with a pappus separator, and then screen to obtain seeds with good bud potential and seeds with weak bud potential, soak the seeds with good bud potential in water to obtain pre-wet seeds, mix the pre-wet seeds with an adhesive (starch, talcum powder and gum arabic) in a volume ratio of 1:3 to obtain seeds coated with the adhesive, and granulate and dry the seeds coated with the adhesive to obtain pre-treated micro-grain seeds with a particle size of 1.5 mm to 2.0 mm; The second step is to fill each seed pot body 2 of the seed pot tray with a matrix material of 80% of the volume of the seed pot body 2, sow 6 pre-treated micro-seeds on the matrix material of the seed pot body 2, and then cover it with a layer of vermiculite particles, and use a quick-dissolving film 3 to cover the entire seed pot tray, wherein the matrix material is a mixture of 100 parts of soil conditioner, 2 parts of vermiculite particles, 3 parts of water retaining agent and 2 parts of perlite in weight; the soil conditioner is obtained by the following method: first, water is added to the soil fly lint produced during cotton processing and cotton seed stripping, so that the water content of the soil fly lint is 50%, and then the water-containing soil fly lint is decomposed for 3 months under the action of decomposing bacteria to obtain the soil conditioner; the amount of decomposing bacteria added is 0.3% of the weight of the water-containing soil fly lint; The third step is to sow in April. During sowing, drip irrigation belts and the first layer of mulch are laid in the field according to the row spacing of the sowing rows. The seed pot trays encapsulating the pre-treated micro-seeds are cut into individual seed pot bodies 2. Film holes smaller than the diameter of the seed pot bodies 2 are opened on the surface of the first layer of mulch, and soil holes of the same size as the seed pot bodies 2 are pressed out. Each seed pot body 2 is sown in the soil holes in the film holes. The sowing rows are pressed with heavy pressure wheels in the form of ground grooves, so that the sowing rows are 4 cm below the ground, and then the second layer of mulch is laid. The fourth step is to drip water normally after sowing. Wait for 6 days for the ramie seeds to germinate and for the cotyledon stage to end before removing the second layer of mulch.

[0034] In this Example 10, after the sowing method of the micro-grain seeds of the present invention was adopted for the Apocynum venetum, the seed germination rate was 83%.

[0035] Embodiment 11: As attached Figure 1 , 2 As shown, the sowing method of the micro-seeds is carried out as follows: The first step is to select the apocynum venetum micro-grain seeds, shell the apocynum venetum micro-grain seeds with a shelling machine, remove the wings with a peeling machine, and remove the pappus with a pappus separator, and then screen to obtain seeds with good bud potential and seeds with weak bud potential, soak the seeds with good bud potential in water to obtain pre-wet seeds, mix the pre-wet seeds with an adhesive (starch, talcum powder and gum arabic) in a volume ratio of 1:5 to obtain seeds coated with the adhesive, and granulate and dry the seeds coated with the adhesive to obtain pre-treated micro-grain seeds with a particle size of 1.5 mm to 2.0 mm; The second step is to fill each seed pot body 2 of the seed pot tray with a matrix material of 80% of the volume of the seed pot body 2, sow 10 pre-treated micro-grain seeds on the matrix material of the seed pot body 2, and then cover it with a layer of vermiculite particles, and use a quick-dissolving film 3 to cover the entire seed pot tray, wherein the matrix material is a mixture of 100 parts of soil conditioner, 4 parts of vermiculite particles, 5 parts of water retaining agent and 4 parts of perlite in weight; the soil conditioner is obtained by the following method: first, water is added to the soil fly lint produced during cotton processing and cotton seed stripping, so that the water content of the soil fly lint is 45% to 60%, and then the water-containing soil fly lint is decomposed for 3 months under the action of decomposing bacteria to obtain the soil conditioner; the amount of decomposing bacteria added is 0.5% of the weight of the water-containing soil fly lint; The third step is to sow seeds in April. During sowing, drip irrigation belts and the first layer of ground film are laid in the field according to the row spacing of the sowing rows. The seed pot trays encapsulating the pre-treated micro-seeds are cut into individual seed pot bodies 2. Film holes smaller than the diameter of the seed pot bodies 2 are opened on the surface of the first layer of ground film, and soil holes of the same size as the seed pot bodies 2 are pressed out. Each seed pot body 2 is sown in the soil holes in the film holes. The sowing rows are pressed with heavy pressure wheels in the form of ground grooves so that the sowing rows are 5 cm below the ground, and then the second layer of ground film is laid. The fourth step is to drip water normally after sowing. Wait for 6 days for the ramie seeds to germinate and for the cotyledon stage to end before removing the second layer of mulch.

[0036] In this Example 11, after the sowing method of the micro-grain seeds of the present invention was adopted for the Apocynum venetum, the seed germination rate was 86%.

[0037] Comparative Example 1: The sowing method of the micro-seeds is carried out as follows: S1, selecting apocynum venetum micro-grain seeds, shelling the apocynum venetum micro-grain seeds with a shelling machine, removing the wings with a grinding machine, and removing the pappus with a pappus separator, and then screening to obtain seeds with good bud potential and seeds with weak bud potential, soaking the seeds with good bud potential in water to obtain pre-wet seeds, mixing the pre-wet seeds with an adhesive (starch, talcum powder and gum arabic) in a volume ratio of 1:5 to obtain seeds coated with the adhesive, and granulating and drying the seeds coated with the adhesive to obtain pre-treated micro-grain seeds with a particle size of 1.5 mm to 2.0 mm; S2, sowing in April, during which drip irrigation tapes and ground film are laid in the field according to the sowing row spacing, film holes are opened on the ground film, and the sowing nozzle of the sowing spot sowing device is used to sow the pre-treated tiny seeds in the film holes and press them down; The fourth step is to drip water and weed normally after sowing, and wait for 6 days for the ramie seeds to germinate.

[0038] In this comparative example 1, after the sowing method of the micro-grain seeds of the present invention was adopted for the apocynum venetum, the seed germination rate was 1%.

[0039] Embodiment 12: As attached Figure 1 , 2 As shown, the sowing method of the micro-seeds is carried out as follows: The first step is to select stevia micro-grain seeds, shell the stevia micro-grain seeds with a shelling machine, remove the wings with a skinning machine, and remove the pappus with a pappus separator, and then screen to obtain seeds with good bud potential and seeds with weak bud potential, soak the seeds with good bud potential in water to obtain pre-wet seeds, mix the pre-wet seeds with a binder (starch, talcum powder and gum arabic) in a volume ratio of 1:1 to obtain seeds coated with the binder, and granulate and dry the seeds coated with the binder to obtain pre-treated micro-grain seeds with a particle size of 1.5 mm to 2.0 mm; The second step is to fill each seed pot body 2 of the seed pot tray with a matrix material of 75% of the volume of the seed pot body 2, sow 3 pre-treated micro-seeds on the matrix material of the seed pot body 2, and then cover it with a layer of vermiculite particles, and use a quick-dissolving film 3 to cover the entire seed pot tray, wherein the matrix material is a mixture of 100 parts of soil conditioner, 1 part of vermiculite particles, 1 part of water retaining agent and 1 part of perlite in weight; the soil conditioner is obtained by the following method: first, water is added to the soil fly lint produced during cotton processing and cotton seed stripping, so that the water content of the soil fly lint is 45%, and then the water-containing soil fly lint is decomposed for 2 months under the action of decomposing bacteria to obtain the soil conditioner; the amount of decomposing bacteria added is 0.1% of the weight of the water-containing soil fly lint; The third step is to sow seeds in May. During sowing, drip irrigation belts and the first layer of ground film are laid in the field according to the sowing row spacing, and the seed pot trays encapsulated with pre-treated micro-seeds are cut into individual seed pot bodies 2. Film holes smaller than the diameter of the seed pot bodies 2 are opened on the surface of the first layer of ground film, and soil holes of the same size as the seed pot bodies 2 are pressed out, and each seed pot body 2 is sown in the soil holes in the film holes. The sowing rows are pressed with heavy pressure wheels in the form of ground grooves, so that the sowing rows are 3 cm below the ground, and then the second layer of ground film is laid; The fourth step is to allow the drip irrigation tape to drip water normally after sowing. The stevia seeds will germinate in 7 days. When the cotyledon stage of the stevia seeds is over, remove the second layer of mulch.

[0040] In this Example 12, after stevia was sown using the micro-seed sowing method of the present invention, the seed germination rate was 81%.

[0041] Embodiment 13: As attached Figure 1 , 2 As shown, the sowing method of the micro-seeds is carried out as follows: The first step is to select stevia micro-grain seeds, shell the stevia micro-grain seeds with a shelling machine, remove the wings with a skinning machine, and remove the pappus with a pappus separator, and then screen to obtain seeds with good bud potential and seeds with weak bud potential, soak the seeds with good bud potential in water to obtain pre-wet seeds, mix the pre-wet seeds with an adhesive (starch, talcum powder and gum arabic) in a volume ratio of 1:3 to obtain seeds coated with the adhesive, and granulate and dry the seeds coated with the adhesive to obtain pre-treated micro-grain seeds with a particle size of 1.5 mm to 2.0 mm; The second step is to fill each seed pot body 2 of the seed pot tray with a matrix material of 80% of the volume of the seed pot body 2, sow 6 pre-treated micro-seeds on the matrix material of the seed pot body 2, and then cover it with a layer of vermiculite particles, and use a quick-dissolving film 3 to cover the entire seed pot tray, wherein the matrix material is a mixture of 100 parts of soil conditioner, 2 parts of vermiculite particles, 2 parts of water retaining agent and 2 parts of perlite in weight; the soil conditioner is obtained by the following method: first, water is added to the soil fly lint produced during cotton processing and cotton seed stripping, so that the water content of the soil fly lint is 45% to 60%, and then the water-containing soil fly lint is decomposed for 3 months under the action of decomposing bacteria to obtain the soil conditioner; the amount of decomposing bacteria added is 0.3% of the weight of the water-containing soil fly lint; The third step is to sow in May. During sowing, drip irrigation belts and the first layer of ground film are laid in the field according to the row spacing of the sowing rows. The seed pot trays encapsulating the pre-treated micro-seeds are cut into individual seed pot bodies 2. Film holes smaller than the diameter of the seed pot bodies 2 are opened on the surface of the first layer of ground film, and soil holes of the same size as the seed pot bodies 2 are pressed out. Each seed pot body 2 is sown in the soil holes in the film holes. The sowing rows are pressed with heavy pressure wheels in the form of ground grooves, so that the sowing rows are 4 cm below the ground, and then the second layer of ground film is laid; The fourth step is to allow the drip irrigation tape to drip water normally after sowing. The stevia seeds will germinate in 9 days. When the cotyledon stage of the stevia seeds is over, remove the second layer of mulch.

[0042] In this Example 13, after stevia was sown using the micro-seed sowing method of the present invention, the seed germination rate was 80%.

[0043] Embodiment 14: As attached Figure 1 , 2 As shown, the sowing method of the micro-seeds is carried out as follows: The first step is to select stevia micro-grain seeds, shell the stevia micro-grain seeds with a shelling machine, remove the wings with a skinning machine, and remove the pappus with a pappus separator, and then screen to obtain seeds with good bud potential and seeds with weak bud potential, soak the seeds with good bud potential in water to obtain pre-wet seeds, mix the pre-wet seeds with a binder (starch, talcum powder and gum arabic) in a volume ratio of 1:5 to obtain seeds coated with the binder, and granulate and dry the seeds coated with the binder to obtain pre-treated micro-grain seeds with a particle size of 1.5 mm to 2.0 mm; The second step is to fill each seed pot body 2 of the seed pot tray with a matrix material of 80% of the volume of the seed pot body 2, sow 10 pre-treated micro-grain seeds on the matrix material of the seed pot body 2, and then cover it with a layer of vermiculite particles, and use a quick-dissolving film 3 to cover the entire seed pot tray, wherein the matrix material is a mixture of 100 parts of soil conditioner, 4 parts of vermiculite particles, 5 parts of water retaining agent and 4 parts of perlite in weight; the soil conditioner is obtained by the following method: first, water is added to the soil fly lint produced during cotton processing and cotton seed stripping, so that the water content of the soil fly lint is 60%, and then the water-containing soil fly lint is decomposed for 3 months under the action of decomposing bacteria to obtain the soil conditioner; the amount of decomposing bacteria added is 0.5% of the weight of the water-containing soil fly lint; The third step is to sow in May. During sowing, drip irrigation belts and the first layer of ground film are laid in the field according to the row spacing of the sowing rows. The seed pot trays encapsulating the pre-treated micro-seeds are cut into individual seed pot bodies 2. Film holes smaller than the diameter of the seed pot bodies 2 are opened on the surface of the first layer of ground film, and soil holes of the same size as the seed pot bodies 2 are pressed out. Each seed pot body 2 is sown in the soil holes in the film holes. The sowing rows are pressed with heavy pressure wheels in the form of ground grooves, so that the sowing rows are 5 cm below the ground, and then the second layer of ground film is laid; The fourth step is to allow the drip irrigation tape to drip water normally after sowing. The stevia seeds will germinate in 10 days. When the cotyledon stage of the stevia seeds is over, remove the second layer of mulch.

[0044] In this Example 14, after stevia was sown using the micro-seed sowing method of the present invention, the seed germination rate was 83%.

[0045] Comparative Example 2: The sowing method of the micro-seeds is carried out as follows: S1, selecting stevia micro-grain seeds, shelling the stevia micro-grain seeds with a shelling machine, removing the wings with a skinning machine, and removing the pappus with a pappus separator, and then screening to obtain seeds with good bud potential and seeds with weak bud potential, soaking the seeds with good bud potential in water to obtain pre-wet seeds, mixing the pre-wet seeds with an adhesive (starch, talcum powder and gum arabic) in a volume ratio of 1:5 to obtain seeds coated with the adhesive, and granulating and drying the seeds coated with the adhesive to obtain pre-treated micro-grain seeds with a particle size of 1.5 mm to 2.0 mm; S2, sowing from April to May, during which drip irrigation tapes and ground film are laid in the field according to the sowing row spacing, film holes are opened on the ground film, and the sowing nozzle of the sowing spot sowing device is used to sow the pre-treated tiny seeds in the film holes and press them down; The fourth step is to drip water and weed normally after sowing, and wait for 8 days for the stevia seeds to germinate.

[0046] In this comparative example 1, after stevia was sown using the micro-seed sowing method of the present invention, the seed emergence rate was 1%.

[0047] Embodiment 15: As attached Figure 1 , 2 As shown, a seed pot plate for implementing a sowing method for micro-grain seeds comprises a film-covered board 1, a seed pot body 2 and a quick-dissolving film 3. The film-covered board 1 is provided with a plurality of mounting holes. A seed pot body 2 is integrally provided on the lower side of the film-covered board 1 corresponding to the position of each mounting hole. The seed pot body 2 is in a U-shape with an opening upward. A plurality of ridges 4 are provided at intervals along the circumference on the inner side of each seed pot body 2. A quick-dissolving film 3 is provided on the upper side of the film-covered board 1.

[0048] During use of the device, convex ridges 4 are provided on the inner side of the seed pot body 2 to enhance the strength and stability of the structure of the seed pot body 2 and prevent deformation or breakage during transportation or use; the seed pot body 2 is provided in a U-shape with the opening upward, so that it is convenient to quickly press it to a certain distance below the ground during sowing; the quick-dissolving film 3 is provided to ensure that the seeds and the matrix will not be scattered or fallen off during transportation, and when the drip irrigation belt drips water, it can quickly dissolve in water and will not affect the emergence and growth of the seeds.

[0049] Example 16: As shown in the attached Figure 1 , 2 As shown, as an optimization of the above embodiment, the materials of the film-covered board 1 and the seed pot body 2 are both made of pulp material, and the inner diameter of the seed pot body 2 is 3 cm to 6 cm, and the height is 7 cm to 10 cm.

[0050] During use, the film-covered board 1 and the seed pot body 2 are made of degradable pulp material, which can be quickly degraded in about 10 days and will not affect the growth of the seed root system. The size of the seed pot body 2 can be set according to the actual seed particle size after pelletization.

[0051] The process of using the seed tray for sowing micro-seeds: First, a seed pot tray for sowing micro-seeds is prepared by using pulp material through a slurry suction method or a slurry injection method; Then, each seed pot body 2 of the seed pot tray is filled with a matrix material of 75% to 80% of the volume of the seed pot body 2, 3 to 10 pre-treated micro-grain seeds are sown on the matrix material of the seed pot body 2, and then covered with a layer of vermiculite particles, and the entire seed pot tray is covered with a quick-dissolving film 3; Finally, during sowing, the seed pot tray encapsulated with the pre-treated micro-seeds is cut into individual seed pot bodies 2 for sowing.

[0052] In summary, the present invention sows micro-grain seeds in a seed pot tray made of degradable material and combines it with double-layer mulch film covering technology, which effectively avoids the problem of weeds jumping out of the film holes and bringing out seedlings when pulling out weeds, and greatly improves the emergence rate of micro-grain seeds. The sowing method of micro-grain seeds of the present invention has the characteristics of low seedling raising cost, good sowing straight root system, good yield and excellent quality.

[0053] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. A method for sowing micro-seeds, characterized in that Proceed as follows: In the first step, the micro-grain seeds are purified and screened to obtain seeds with good germination potential and seeds with weak germination potential, and the seeds with good germination potential are pelletized to obtain pre-treated micro-grain seeds; The second step is to fill each seed pot body of the seed pot tray with a matrix material, sow the pre-treated micro-grain seeds on the matrix material of the seed pot body, and then cover a layer of vermiculite particles, and use a quick-dissolving film to cover the entire seed pot tray; The third step is to lay drip irrigation belts and the first mulch film in the field according to the row spacing of the sowing rows during sowing, cut the seed pot trays encapsulating the pre-treated micro-seeds into individual seed pots, open film holes on the surface of the first mulch film, sow each seed pot in the film hole and press it down, so that the sowing rows with the seed pots are lower than the ground, and then lay the second mulch film; The fourth step is to wait for the seeds to germinate after the sowing is completed.

2. The method for sowing micro-seeds according to claim 1, characterized in that In the first step, purification includes one or more of shelling with a shelling machine, removing wings with a skinning machine, and removing pappus with a pappus separator.

3. The method for sowing micro-seeds according to claim 1 or 2, characterized in that In the first step, the specific operation of the pelletization treatment is to soak the seeds with good germination potential in water to obtain pre-wet seeds, mix the pre-wet seeds with a binder to obtain seeds coated with the binder, and granulate and dry the seeds coated with the binder to obtain pre-treated micro-grain seeds with a particle size of 1.5 mm to 2.0 mm.

4. The method for sowing micro-seeds according to claim 3, characterized in that The volume ratio of the pre-moistened seeds to the binder is 1:1 to 5, and the binder is one of starch, talc and gum arabic.

5. The method for sowing micro-seeds according to any one of claims 1 to 4, characterized in that In the second step, the matrix material is mixed by weight of 100 parts of soil conditioner, 1 to 4 parts of vermiculite particles, 1 to 5 parts of water retaining agent and 1 to 4 parts of perlite.

6. The method for sowing micro-seeds according to claim 5, characterized in that The soil conditioner is obtained by the following method: first, water is added to the soil fines to make the water content of the soil fines be 45% to 60%, and then the soil fines containing water are decomposed by decomposing bacteria for 2 to 3 months to obtain the soil conditioner, wherein the amount of decomposing bacteria added is 0.1% to 0.5% of the weight of the soil fines containing water.

7. The method for sowing micro-seeds according to any one of claims 1 to 6, characterized in that In the second step, the amount of matrix material added is 75% to 80% of the volume of the seed pot, and the number of pretreated micro-seeds sown in the seed pot is 3 to 10.

8. The method for sowing micro-seeds according to any one of claims 1 to 7, characterized in that In the third step, the diameter of the film hole is smaller than the diameter of the seed pot, and the sowing row with the seed pot is 3 cm to 5 cm below the ground.

9. A seed tray for implementing the method for sowing micro-seeds according to any one of claims 1 to 8, characterized in that It includes a film-covered board, a seed pot body and a quick-dissolving film. The film-covered board is provided with a plurality of mounting holes. A seed pot body is integrally provided on the lower side of the film-covered board corresponding to each mounting hole. The seed pot body is in a U-shape with an opening upward. A plurality of convex ridges are provided on the inner side of each seed pot body at intervals along the circumference. A quick-dissolving film is provided on the upper side of the film-covered board.

10. The seed tray of the method for sowing micro-grain seeds according to claim 9, characterized in that The materials of the film-covering board and the seed pot body are both made of pulp material. The inner diameter of the seed pot body is 3cm to 6cm, and the height is 7cm to 10cm.

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