High-yield planting method for sorghum
By soaking seed drying and fully biodegradable seepage mulch coating combined with wide and narrow double-row sowing, the problems of sorghum seeds are difficult to emerge and rupture of mulch film are solved, the emergence rate and yield of sorghum are improved, and the lighting and moisturizing effect are achieved.
Patent Information
- Application Number
- CN202411131851.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2024-12-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
It is difficult to emerge after the mulch of sorghum seeds, and the seedlings grow poorly. The mulch film breaks and disintegrates directly under light, resulting in uneven seedling emergence and poor warming and moisturizing effect, affecting the yield of sorghum.
Soorghum seeds are soaked in seed soaking agent and dried. Use a full biodegradable seepage mulch to cover the ridge surface and side surfaces, avoid the sowing intervals and cover the soil. Combined with wide and narrow double-row sowing and appropriate amount of base fertilizer and fungicide to prevent Weed growth prolongs the germination period and growth rate of seeds.
It improves the emergence rate and yield of sorghum seeds, reduces the occurrence of pests and diseases, extends the service life of the mulch, ensures the lighting area and moisturizing effect, and enhances the neatness and efficiency of planting.
Smart Images
Figure BDA0004998160230000071 
Figure BDA0004998160230000081 
Figure BDA0004998160230000082
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of crop cultivation, and in particular relates to a high-yield sorghum planting method. Background Art
[0002] Sorghum is an important dryland food crop. Compared with other major food crops, sorghum has unique biological characteristics and economic advantages: high photosynthetic efficiency, outstanding stress resistance, and strong hybrid vigor. Sorghum can be eaten, used as feed, and processed. Famous Chinese liquors such as Maotai, Wuliangye, Fenjiu, and Luzhou Laojiao Special Liquor are all brewed with sorghum as the main or auxiliary ingredients. Sorghum is mostly planted in arid areas, and mulching has become a necessary measure to increase the yield of sorghum dryland in northern China. However, sorghum seedlings have poor soil-topping ability, and the problem of seedlings having difficulty emerging after mulching often occurs. The traditional planting method of mulching before sowing, drilling holes for planting and watering, and pressing the film holes with wet soil has problems such as uneven depth, uneven emergence, insufficient watering, susceptibility to drought damage, film seedlings pressing the soil, small light area, and poor warming and moisture retention effects. The ridge-shaped film has the problem of fast photodegradation rate after covering, and most of them break and disintegrate during the crop seedling stage. Therefore, it is urgent to provide a new planting method to improve the emergence rate and yield of sorghum. Summary of the invention
[0003] In view of this, the object of the present invention is to provide a high-yield sorghum planting method to solve the problems of difficulty in germination of sorghum seeds after mulch film covering, poor seedling growth and rupture and disintegration of the mulch film due to direct sunlight.
[0004] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:
[0005] The present invention provides a high-yield sorghum planting method, comprising the following steps:
[0006] Soak sorghum seeds in the seed soaking agent for 8 to 16 hours and then dry them. Till the land, dig furrows and form ridges, and sow in wide and narrow double rows on the ridges. Then cover the ridge surface and side surfaces with fully biodegradable water-permeable mulch film, press the film into position and cover with soil. On the ridge surface, avoid the sowing area and cover with soil at intervals of 2 to 4 cm, and cover with soil at the edge of the ridge side surface.
[0007] Preferably, the seed soaking agent is composed of the following ingredients in percentage by weight: 0.05% to 0.1% tebuconazole, 0.05% to 0.15% choline chloride, 0.1% to 0.2% phoxim, 0.1% to 0.3% prothionyl, 0.1% to 0.2% carbendazim and the balance water.
[0008] Preferably, the ridge height is 65-70 cm, the ridge width is 50-65 cm, and the ridge spacing is 50-65 cm.
[0009] Preferably, the narrow row spacing is 40-45 cm, the wide row spacing is 70-80 cm; the sowing plant spacing is 18-20 cm, and the sowing depth is 2-5 cm.
[0010] Preferably, the fully biodegradable water-permeable ground film is black and has a thickness of 0.006 to 0.008 mm.
[0011] Preferably, base fertilizer and fungicide are applied during land preparation, and the base fertilizer consists of the following ingredients in parts by weight: 15-25 parts of urea, 9-15 parts of monoammonium phosphate, 25-35 parts of potassium chloride, 15-20 parts of livestock and poultry manure, 12-18 parts of sorghum straw, 8-15 parts of humic acid, and 3-7 parts of EM bacterial agent; the application amount of the base fertilizer is 15-20 kg / mu.
[0012] Preferably, the fungicide comprises 10-15% triadimefon wettable powder, 40-60% thiophanate-methyl wettable powder and 5-15% difenoconazole water-dispersible granules; the mass ratio of the 10-15% triadimefon wettable powder, 40-60% thiophanate-methyl wettable powder and 5-15% difenoconazole water-dispersible granules is 12-16:9-11:10-16;
[0013] The dosage of the fungicide is 155-215 g / mu; the method of using the fungicide is to spray the fungicide with 280-485 times of water.
[0014] Preferably, after ridge forming, herbicide is sprayed on the ridge surface, ridge furrow and side surface, and aired for 1 to 3 days after spraying the herbicide; the herbicide comprises 35 to 45% atrazine suspension concentrate and 70 to 80% 2,4-D butyl emulsifiable concentrate; the volume ratio of the 35 to 45% atrazine suspension concentrate and the 70 to 80% 2,4-D butyl emulsifiable concentrate is 7 to 8:2 to 3;
[0015] The dosage of the herbicide is 180-220 mL / mu; the method of using the herbicide is to mix the herbicide with 135-280 times of water and spray it.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] The present invention can promote sorghum seed germination, increase the growth rate of strong seedlings, improve drought resistance through seed soaking and drying, shorten the sorghum germination period, accelerate the growth rate, thereby increasing the seed yield, and also reduce the occurrence of diseases and insect pests in the seedling stage.
[0018] The present invention first sows and covers the film for continuous operation, which is completed at one time, has a large lighting area, good warming and moisturizing effects, consistent sowing depth, and neat emergence. The ability of sorghum seeds to arch the soil can be improved by soaking and airing the seeds, and the soil is covered on the ridge surface after covering the film to avoid the sowing area. The double pressure of suppressing the soil and the seed buds pushing the soil upward can be used to promote the seed buds to pierce the film layer and naturally break the film to emerge, which greatly improves the emergence rate of sorghum seeds and solves the adverse effects of the ground film on emergence.
[0019] The present invention adopts a wide and narrow row sowing method on ridges to increase the group planting density, increase the green photosynthetic area, and greatly improve the sorghum yield; and improve the canopy structure. After the seedlings emerge from the wide and narrow double row sowing on the ridge surface, the plants can receive sufficient sunlight as they grow, thereby reducing the direct exposure area of sunlight to the ground film, reducing its light degradation rate, and ensuring the integrity of the ground film. DETAILED DESCRIPTION
[0020] The present invention provides a high-yield sorghum planting method, comprising the following steps:
[0021] Soak sorghum seeds in the seed soaking agent for 8 to 16 hours and then dry them. Till the land, dig furrows and form ridges, and sow in wide and narrow double rows on the ridges. Then cover the ridge surface and side surfaces with fully biodegradable water-permeable mulch film, press the film into position and cover with soil. On the ridge surface, avoid the sowing area and cover with soil at intervals of 2 to 4 cm, and cover with soil at the edge of the ridge side surface.
[0022] In the present invention, sorghum seeds are soaked in a seed soaking agent for 8 to 16 hours and then dried. The seed soaking agent consists of the following ingredients in percentage by weight: 0.05% to 0.1% tebuconazole, 0.05% to 0.15% choline chloride, 0.1% to 0.2% phoxim, 0.1% to 0.3% promycin, 0.1% to 0.2% carbendazim and the balance of water; the amount of tebuconazole is preferably 0.06 to 0.09%, the amount of choline chloride is preferably 0.08 to 0.12%, the amount of phoxim is preferably 0.12 to 0.18%, the amount of promycin is preferably 0.14 to 0.28%, and the amount of carbendazim is preferably 0.12 to 0.18%; and the soaking time is preferably 10 to 14 hours.
[0023] Land preparation, topdressing base fertilizer and fungicide during land preparation, the base fertilizer consists of the following components in parts by weight: 15-25 parts of urea, 9-15 parts of monoammonium phosphate, 25-35 parts of potassium chloride, 15-20 parts of livestock and poultry manure, 12-18 parts of sorghum straw, 8-15 parts of humic acid, and 3-7 parts of EM bacterial agent; the amount of urea is preferably 18-22 parts, the amount of monoammonium phosphate is preferably 10-14 parts, and the amount of potassium chloride is preferably 28- 32 parts, the amount of livestock and poultry manure is preferably 16-19 parts, the amount of sorghum straw is preferably 13-17 parts, the amount of humic acid is preferably 10-14 parts; the amount of EM microbial agent is preferably 4-6 parts; the application amount of base fertilizer is preferably 15-20kg / mu, and more preferably 16-19kg / mu; the fungicide includes 10-15% triadimefon wettable powder, 40-60% thiophanate-methyl wettable powder agent and 5-15% difenoconazole water-dispersible granules; the total active ingredient content of the triadimefon wettable powder is preferably 11-14%, the total active ingredient content of the thiophanate-methyl wettable powder is preferably 45-55%, and the total active ingredient content of the difenoconazole water-dispersible granules is preferably 7-14%; the mass ratio of the 10-15% triadimefon wettable powder, 40-60% thiophanate-methyl wettable powder and 5-15% difenoconazole water-dispersible granules is preferably 12-16:9-11:10-16, and more preferably 13-15:9.5-10.5:11-15; the dosage of the fungicide is preferably 155-215g / mu, and more preferably 160-210g / mu; the method of using the fungicide is preferably to spray the fungicide with 280-485 times of water, and more preferably to spray it with 290-470 times of water.
[0024] After land preparation, furrows are dug and ridges are formed. The ridge height is preferably 65-70 cm, the ridge width is preferably 50-65 cm, and the ridge spacing is preferably 50-65 cm. After ridge formation, spray the herbicide on the ridge surface, ridge furrow and side surface, wherein the herbicide comprises 35-45% atrazine suspension and 70-80% 2,4-D butyl emulsifiable concentrate; the total active ingredient content of the atrazine suspension is preferably 38-42%, and the total active ingredient content of the 2,4-D butyl emulsifiable concentrate is preferably 72-78%; the volume ratio of the 35-45% atrazine suspension and the 70-80% 2,4-D butyl emulsifiable concentrate is preferably 7-8:2-3; more preferably 7.2-7.8:2.2-2.8; the dosage of the herbicide is preferably 180-220 mL / mu, more preferably 190-210 mL / mu; the method of using the herbicide is preferably to spray the herbicide with 135-280 times of water, more preferably to spray the herbicide with 140-270 times of water. After spraying the herbicide, dry it in the sun for 1-3 days. On the ridge, wide and narrow double rows are sown, the narrow row spacing is preferably 40-45 cm, and the wide row spacing is preferably 70-80 cm; the sowing spacing is preferably 18-20 cm, and the sowing depth is preferably 2-5 cm. Then, the fully biodegradable water-permeable mulch film is coated on the ridge surface and the side surface of the ridge, and the film is pressed and positioned before covering with soil. On the ridge surface, the soil is covered for 2-4 cm intervals to avoid the sowing area, and the soil is covered at the edge of the ridge side surface. The fully biodegradable water-permeable mulch film is preferably black, and the thickness is preferably 0.006-0.008 mm.
[0025] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.
[0026] Example 1
[0027] The seed soaking agent consists of the following ingredients: 0.08% tebuconazole, 0.10% choline chloride, 0.15% phoxim, 0.2% prothion-methyl, 0.15% carbendazim and the balance water.
[0028] The base fertilizer is composed of the following ingredients: 20 parts of urea, 12 parts of monoammonium phosphate, 30 parts of potassium chloride, 18 parts of livestock and poultry manure, 15 parts of sorghum straw, 12 parts of humic acid, and 5 parts of EM bacterial agent. The application amount of the base fertilizer is 18 kg / mu;
[0029] The fungicide is prepared by mixing 70 g of 12% triadimefon wettable powder, 50 g of 50% thiophanate-methyl wettable powder and 65 g of 10% difenoconazole water-dispersible granules, adding 70 kg of water, and spraying per mu.
[0030] The herbicide is prepared by mixing 150 mL of 40% atrazine suspension and 50 mL of 75% 2,4-D butyl emulsifiable concentrate, adding 40 kg of water, and spraying per acre.
[0031] Soak sorghum seeds in a seed soaking agent for 12 hours and then dry them. The land is prepared, and base fertilizer and fungicide are applied during the land preparation. After the land is prepared, furrows are opened and ridges are formed. The ridge height is 68 cm, the ridge width is 60 cm, and the ridge spacing is 60 cm. After ridge formation, herbicides are sprayed on the ridge surface, ridge furrows and side surfaces, and the seeds are aired for 2 days after the herbicide spraying is completed. After airing, wide and narrow double rows are sown on the ridges, with a narrow row spacing of 40 cm and a wide row spacing of 80 cm; the sowing spacing is 19 cm, and the sowing depth is 4 cm; then a black fully biodegradable water-permeable mulch with a thickness of 0.007 mm is coated on the ridge surface and side surface of the ridge, and the soil is covered after the film is pressed and positioned. The soil is covered at intervals of 3 cm on the ridge surface to avoid the sowing area, and the soil is covered at the edge of the ridge side surface.
[0032] Example 2
[0033] The seed soaking agent consists of the following ingredients: 0.05% tebuconazole, 0.05% choline chloride, 0.1% phoxim, 0.1% prothion-methyl, 0.1% carbendazim and the balance water.
[0034] The base fertilizer is composed of the following ingredients: 15 parts of urea, 9 parts of monoammonium phosphate, 25 parts of potassium chloride, 15 parts of livestock and poultry manure, 12 parts of sorghum straw, 8 parts of humic acid, and 3 parts of EM bacterial agent. The application amount of the base fertilizer is 15 kg / mu.
[0035] The fungicide is prepared by mixing 60 g of 10% triadimefon wettable powder, 45 g of 40% thiophanate-methyl wettable powder and 50 g of 5% difenoconazole water-dispersible granules, adding 60 kg of water, and spraying per mu.
[0036] The herbicide was prepared by mixing 140 mL of 35% atrazine suspension and 40 mL of 70% 2,4-D butyl emulsifiable concentrate, adding 30 kg of water, and spraying per acre.
[0037] Soak sorghum seeds in the seed soaking agent for 8 hours and then dry them. Prepare the land, apply base fertilizer and fungicide during land preparation, dig furrows and ridges after land preparation, the ridge height is 65cm, the ridge width is 50cm, and the ridge spacing is 65cm. After ridge formation, spray herbicides on the ridge surface, furrows and side surfaces, and dry them for 1 day after spraying the herbicide. After drying, sow in wide and narrow double rows on the ridges, the narrow row spacing is 40cm, and the wide row spacing is 75cm; the sowing spacing is 18cm, and the sowing depth is 2cm; then cover the ridge surface and side surface with a black biodegradable water-permeable mulch with a thickness of 0.006mm, cover the soil after pressing the film and positioning, and cover the soil at intervals of 2cm on the ridge surface to avoid the sowing area, and cover the soil at the edge of the ridge side surface.
[0038] Example 3
[0039] The seed soaking agent consists of the following ingredients: 0.1% tebuconazole, 0.15% choline chloride, 0.2% phoxim, 0.3% prothion-methyl, 0.2% carbendazim and the balance water.
[0040] The base fertilizer is composed of the following ingredients: 25 parts of urea, 15 parts of monoammonium phosphate, 35 parts of potassium chloride, 20 parts of livestock and poultry manure, 18 parts of sorghum straw, 15 parts of humic acid, and 7 parts of EM bacterial agent. The application rate of the base fertilizer is 20 kg / mu;
[0041] The fungicide is prepared by mixing 80 g of 15% triadimefon wettable powder, 55 g of 60% thiophanate-methyl wettable powder and 80 g of 15% difenoconazole water-dispersible granules, adding 75 kg of water, and spraying per mu.
[0042] The herbicide was prepared by mixing 160 mL of 45% atrazine suspension and 60 mL of 80% 2,4-D butyl emulsifiable concentrate, adding 50 kg of water, and spraying per mu.
[0043] Soak sorghum seeds in the seed soaking agent for 16 hours and then air dry. Prepare the land, apply base fertilizer and fungicide during land preparation, dig furrows and ridges after land preparation, the ridge height is 70cm, the ridge width is 65cm, and the ridge spacing is 50cm. After ridge formation, spray herbicides on the ridge surface, furrows and side surfaces, and air dry for 3 days after the herbicide spraying is completed. After airing, sow in wide and narrow double rows on the ridges, the narrow row spacing is 45cm, and the wide row spacing is 70cm; the sowing spacing is 20cm, and the sowing depth is 5cm; then cover the ridge surface and side surface with a black biodegradable water-permeable mulch with a thickness of 0.008mm, and cover the soil after the film is pressed and positioned. Cover the soil 4cm away from the sowing area on the ridge surface, and cover the soil at the edge of the ridge side surface.
[0044] Comparative Example 1
[0045] The wide and narrow double-row sowing on ridges in Example 1 was replaced by single-row and equally spaced drill sowing (plant spacing 30 cm×50 cm) on ridges (ridge height 35 cm, ridge width 30 cm, ridge spacing 20 cm).
[0046] Comparative Example 2
[0047] Except that the soil is not covered after the film is pressed and positioned, the other steps are the same as those in Example 1.
[0048] Experimental Example 1
[0049] Effects of composition, dosage and soaking time of seed soaking agent on germination of sorghum seeds
[0050] The number of sorghum seeds germinating in Jinza No. 22 was recorded under different soaking agents and soaking times until the number remained constant. Seed germination was based on the appearance of white seeds. The specific settings were as follows: 11 groups, A, B, C, D, E, F, G, H, I, J, and K, were set up, and 290 seeds of Jinza No. 22 sorghum seeds were selected in each group for control experiments. A is soaking seeds according to the method of Example 1; B is soaking seeds according to the method of Example 2; C is soaking seeds according to the method of Example 3; D is changing the soaking time in Example 1 to 5 hours; E is changing the soaking time in Example 1 to 20 hours; F is removing the tebuconazole in the seed soaking agent of Example 1; G is removing the choline chloride in the seed soaking agent of Example 1; H is changing the concentration of tebuconazole in the seed soaking agent of Example 1 to 0.03%; I is changing the concentration of tebuconazole in the seed soaking agent of Example 1 to 0.15%; J is changing the concentration of choline chloride in the seed soaking agent of Example 1 to 0.03%, and K is changing the concentration of choline chloride in the seed soaking agent of Example 1 to 0.25%.
[0051] Experimental results: as shown in Table 1.
[0052] Table 1 Effects of different treatments on sorghum seed germination
[0053]
[0054]
[0055] As can be seen from Table 1, the germination rates of the treatment methods of Examples 1 to 3 are all higher than those of other treatments. As can be seen from A, D and E, with the extension of the soaking time, the germination rate first increases and then decreases, indicating that the appropriate soaking time can improve the germination rate of sorghum seeds. As can be seen from A, F and G, the germination rate of sorghum seeds is greatly reduced in the absence of any one of tebuconazole and choline chloride, indicating that the synergistic cooperation between tebuconazole, choline chloride and phoxim, prothion, carbendazim and other components significantly improves the germination rate of sorghum seeds. As can be seen from A, H, I, J and K, with the increase of tebuconazole concentration, the germination rate first increases and then decreases, and with the increase of choline chloride concentration, the germination rate first increases and then decreases, indicating that the use of appropriate concentrations of tebuconazole and choline chloride can improve the germination rate of sorghum seeds.
[0056] Experimental Example 2
[0057] On May 19, 2022, a sorghum sowing test field was set up in Yuancha Village, Jinmingsi Town, Jiaxian County, Shaanxi Province. The methods of Examples 1 to 3 and Comparative Examples 1 to 2 were used to plant Jinza No. 22 sorghum, and the germination rate of sorghum on May 20 and the yield of sorghum on October 20 in the test field were recorded.
[0058] Experimental results: as shown in Tables 2 and 3.
[0059] Table 2 Germination rate of sorghum seeds on May 20 under different treatments
[0060]
[0061]
[0062] As shown in Table 2, the emergence rate of Example 1 was significantly increased by 18.4% compared with that of Comparative Example 1, and was increased by 29.6% compared with that of Comparative Example 2.
[0063] Table 3 Sorghum yield on October 20 under different treatments
[0064] deal with Yield (kg / mu) Example 1 780.9 Example 2 774.6 Example 3 772.7 Comparative Example 1 610.3 Comparative Example 2 415.8
[0065] As shown in Table 3, the output of Example 1 is significantly increased by 27.95% compared with Comparative Example 1, and is increased by 87.8% compared with Comparative Example 2.
[0066] It can be seen from the above embodiments and experimental examples that the planting method of the present invention can promote the germination of sorghum seeds, improve the emergence rate of sorghum seeds, solve the adverse effect of the resistance of the ground film on emergence in the planting method of sowing first and then covering with film, and sow in wide and narrow rows on ridges, thereby improving the canopy structure and solving the problem of premature degradation of the ground film due to long-term direct sunlight, thereby greatly improving the yield of sorghum.
[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A high-yield sorghum planting method, It is characterized in that The following steps are involved: Soak sorghum seeds in the seed soaking agent for 8 to 16 hours and then dry them. Till the land, dig furrows and form ridges, and sow in wide and narrow double rows on the ridges. Then cover the ridge surface and side surfaces with fully biodegradable water-permeable mulch film, press the film into position and cover with soil. On the ridge surface, avoid the sowing area and cover with soil at intervals of 2 to 4 cm, and cover with soil at the edge of the ridge side surface.
2. The high-yield sorghum planting method according to claim 1, It is characterized in that The seed soaking agent is composed of the following components in percentage by weight: 0.05% to 0.1% of tebuconazole, 0.05% to 0.15% of choline chloride, 0.1% to 0.2% of phoxim, 0.1% to 0.3% of prothionyl, 0.1% to 0.2% of carbendazim and the balance of water.
3. The high-yield sorghum planting method according to claim 1, It is characterized in that The ridge height is 65-70 cm, the ridge width is 50-65 cm, and the ridge spacing is 50-65 cm.
4. The high-yield sorghum planting method according to claim 1, It is characterized in that The narrow row spacing is 40-45 cm, and the wide row spacing is 70-80 cm; the sowing plant spacing is 18-20 cm, and the sowing depth is 2-5 cm.
5. The high-yield sorghum planting method according to claim 1, It is characterized in that The fully biodegradable water-permeable ground film is black and has a thickness of 0.006 to 0.008 mm.
6. The high-yield sorghum planting method according to claim 1, It is characterized in that When tilling the land, topdressing base fertilizer and fungicide are applied. The base fertilizer consists of the following ingredients in parts by weight: 15-25 parts of urea, 9-15 parts of monoammonium phosphate, 25-35 parts of potassium chloride, 15-20 parts of livestock and poultry manure, 12-18 parts of sorghum straw, 8-15 parts of humic acid, and 3-7 parts of EM bacterial agent; the application amount of the base fertilizer is 15-20 kg / mu.
7. The high-yield sorghum planting method according to claim 6, It is characterized in that The fungicide comprises 10-15% triadimefon wettable powder, 40-60% thiophanate methyl wettable powder and 5-15% difenoconazole water dispersible granules; the mass ratio of the 10-15% triadimefon wettable powder, 40-60% thiophanate methyl wettable powder and 5-15% difenoconazole water dispersible granules is 12-16:9-11:10-16; The dosage of the fungicide is 155-215 g / mu; the method of using the fungicide is to spray the fungicide with 280-485 times of water.
8. The high-yield sorghum planting method according to claim 1, It is characterized in that After ridge formation, herbicide is sprayed on the ridge surface, ridge furrow and side surface, and aired for 1 to 3 days after the herbicide spraying is completed; the herbicide comprises 35 to 45% atrazine suspension concentrate and 70 to 80% 2,4-D butyl emulsifiable concentrate; the volume ratio of the 35 to 45% atrazine suspension concentrate and the 70 to 80% 2,4-D butyl emulsifiable concentrate is 7 to 8:2 to 3; The dosage of the herbicide is 180-220 mL / mu; the method of using the herbicide is to mix the herbicide with 135-280 times of water and spray it.