In order to deepen the popularization and application of soil testing and formula fertilization technology, optimize fertilization structure, realize quantitative optimization of fertilization, promote grain yield increase, increase agricultural efficiency, increase farmers' income and save energy and reduce emissions, combine soil nutrient status of cultivated land, crop fertilizer requirements, and field The test results, the guiding opinions of the main crop science fertilization in the whole state in 2017 are proposed for reference application by counties (cities).
First, rice
(1) Fertilization principle
In view of the problems of unbalanced application of nitrogen, phosphorus and potassium fertilizers and less application of micro-fertilizers in rice production, the following fertilization principles are proposed.
1. Forefoot, central control, and post-complement.
2. Apply scientific formula of nitrogen, phosphorus and potassium fertilizers to supplement trace element fertilizers.
3. Add organic fertilizer and deep application of nitrogen fertilizer to achieve full-layer fertilization.
4, scientific management of water, water and fertilizer.
5. Fertilizer application combined with high-yield and high-quality cultivation techniques.
(2) Fertilization recommendations
1. The target output is 800kg/mu or more, 2000-2500kg per farmer of farmland, nitrogen fertilizer (N) 11-14kg/mu, phosphate fertilizer (P2O5) 4-5 kg/mu, potash fertilizer (K2O) 3-4 kg / mu, Zinc sulfate 2kg / mu. The main recommended areas are rice planting areas in low-calorie valleys such as Binchuan, Handan, Yongping, Yunlong and Huangping in Heqing County.
2. The target output is 750kg/mu or more, 1500kg-2000kg per farmer of farmland fertilizer, 12-18kg/mu of nitrogen fertilizer (N), 5-6 kg/mu of phosphate fertilizer (P2O5), and 3-5 kg/mu of potassium fertilizer (K2O). The main recommended area is the high-yield warm rice planting area in the counties of Laoshan, Midu and Xiangyun at an altitude of 1600-1900 meters.
3. The target output is 650kg/mu or more, 1000-2000kg per farmer of farmland, 5-10kg/mu of nitrogen fertilizer (N), 3-4 kg/mu of phosphate fertilizer (P2O5), and 3-4 kg/mu of potash fertilizer (K2O). Zinc sulfate 2kg / mu. The main recommended areas are the cool and cold rice growing areas of Dali City, Wuyuan County, Jianchuan County and Heqing County with an altitude of over 1900 meters.
(3) Fertilization method
Farmyard manure is applied as base fertilizer, phosphate fertilizer and 50% nitrogen fertilizer are applied as middle layer fertilizer, 20% nitrogen fertilizer and 20% potassium fertilizer are applied as tiller fertilizer, 30% nitrogen fertilizer and 80% potassium fertilizer are applied as joint fertilizer and panicle fertilizer, and zinc deficiency field is applied. When the middle layer of fertilizer is applied, 1-2 kg of zinc sulfate is applied per acre.
For the former vegetable, garlic and other fields, due to more fertilizer residues and high soil nutrient content, the seedlings should be fertilized according to the seedlings.
Second, corn
(1) Fertilization principle
In view of the lack of organic fertilizer application in corn production, the application of heavy fertilizers and phosphate fertilizers on chemical fertilizers, the application of potassium fertilizers and micro-fertilizers, the symptoms of deficiency in some fields, and the shallowness of mountain ploughing, the following fertilization principles are proposed.
1. According to the soil test results, the application of nitrogen, phosphorus and potassium fertilizers is scientifically formulated, and the application of trace element fertilizers is emphasized.
2. Add organic fertilizer to achieve full-layer fertilization.
3. Promote the application of high-yield, dense-tolerant and fertilizer-resistant varieties, increase corn yield, and give full play to fertilizer effects.
4, deep ploughing year by year to break the bottom of the plow, promote root development, improve water and fertilizer use efficiency.
5. Advocate the return of straw to the field, fertilize the soil and increase the application of potassium fertilizer.
6. Fertilizer application combined with high-yield and high-quality cultivation techniques.
(2) Fertilization recommendations
1. The target output is 800kg/mu or more, and 1500-2000kg of farmyard manure per mu is used as base fertilizer, nitrogen fertilizer (N) 18-23kg/mu, phosphate fertilizer (P2O5) 5-7 kg/mu, potash fertilizer (K2O) 5-6 kg / Mu, zinc sulfate 2kg / mu. The main recommended areas are high-yield corn growing areas in Dali, Binchuan and Xiangyun counties.
2. The target output is 650-800 kg / mu, 1500-2000 kg of farmer's fertilizer per mu, nitrogen fertilizer (N) 12-17 kg/mu, phosphate fertilizer (P2O5) 4-5 kg ​​/ mu, potash fertilizer (K2O) 4-5 kg ​​/ Mu, zinc sulfate 2kg / mu. The main recommended areas are medium and high-yield planting areas in Midu, Lushan, Yongping and Yunlong County.
3, the target output of 500kg / acre, 1500-2000kg per mu of farmyard manure, nitrogen fertilizer (N) 15-18kg / acre, phosphate fertilizer (P2O5) 5-7 kg / acre, potassium fertilizer (K2O) 4-5 kg ​​/ acre. The main recommended areas are medium and low-yielding corn growing areas in the counties of Min, Nanxun, Heqing, Wuyuan and Jianchuan.
(3) Fertilization method
Farmyard manure is applied as a base fertilizer, phosphate fertilizer, 40% potassium fertilizer and 10% nitrogen fertilizer are applied as seed fertilizer, 30% nitrogen fertilizer and 30% potassium fertilizer are applied as seed fertilizer, 50% nitrogen fertilizer and 30% potassium fertilizer are applied as panicle fertilizer, and zinc deficiency field is used. When applying the base fertilizer on the zinc-deficient field, apply 1-2 kg of zinc sulfate per acre.
Third, broad beans
(1) Fertilization principle
In view of the problem that the production of broad bean is not strong in scientific fertilization, the total amount of fertilization is insufficient, and the amount of organic fertilizer is too small, the following principles of fertilization are proposed.
1. Increase the amount of organic fertilizer and implement the return of crop straw to the field.
2. In areas with weak growth and low temperature, nitrogen fertilizer should be applied appropriately, and phosphorus and potassium fertilizer should be added.
3. Appropriately supplement the trace elements such as boron and molybdenum in different regions, adjust the application period and proportion of nitrogen fertilizer as appropriate, and strengthen the field management.
(2) Fertilization recommendations
1. The target yield is 150-200kg/mu, and the farmer's fertilizer per acre is 2000-2500kg or the crop straw (straw, corn stalk, etc.) is covered with whole field, nitrogen fertilizer (N) 1-2kg, phosphate fertilizer (P2O5) 4～5kg, potash fertilizer (K2O) 5 to 6 kg. The main recommended areas are Wuyuan Shangping, Heqing and Jianchuan County Broad Bean Growing Areas.
2, the target output of 250kg / acre, per mu of farmer's fertilizer 1000 ~ 1500kg or the implementation of crop straw (straw, corn stalks, etc.) full field coverage, nitrogen fertilizer (N) 1 ~ 2kg, phosphate fertilizer (P2O5) 4 ~ 5kg, potassium fertilizer ( K2O) 4 ~ 5kg. The main recommended areas are Wuyuan Xia, Dali, Yongping, Midu and Xiangyun County broad bean planting areas.
(3) Fertilization method
Farmyard manure, phosphate fertilizer and potash fertilizer are all applied as base fertilizer, nitrogen fertilizer is applied in the five-leaf stage, seed dressing with 0.2% ammonium molybdate or soaking with 0.1% ammonium molybdate solution for 10 to 12 hours, using 0.2% borax solution, phosphoric acid The potassium hydrogen solution is sprayed 1-2 times in the flower pod stage.
Fourth, rapeseed
(1) Fertilization principle
For the rapeseed production, there are problems such as unbalanced proportion of nitrogen, phosphorus and potassium nutrients, insufficient application of organic fertilizer, and lack of trace elements such as boron. The following principles of fertilization are proposed.
1. According to soil fertility conditions and target yield, balanced application of nitrogen, phosphorus and potassium fertilizers is mainly to adjust the amount of nitrogen fertilizer and increase the application of phosphorus and potassium fertilizer.
2. Supplement the boron fertilizer according to the effective boron status of the soil.
3. Add organic fertilizer, promote organic and inorganic cooperation and return straw.
4. Nitrogen and potassium fertilizers are applied in stages, and the proportion of nitrogen and potassium fertilizers in the middle stage of fertility is appropriately increased to improve the utilization rate of fertilizer.
(2) Fertilization recommendations
1. The target yield is 100-200kg/mu, 1000-2000kg per farmer of farmland, 10~16kg of nitrogen fertilizer (N), 3~5kg of phosphate fertilizer (P2O5), 5~7kg of potassium fertilizer (K2O); 0.5 to 1.0 kg. The main recommended areas are the rapeseed planting areas in Wuyuan County and Dali City.
2, the target output of 200 ~ 250kg / acre, 1,500 ~ 2500kg of farmer's fertilizer per acre, nitrogen fertilizer (N) 14 ~ 18kg, phosphate fertilizer (P2O5) 4 ~ 6kg, potassium fertilizer (K2O) 5 ~ 7kg; boron-poor soil 0.5 to 1.0 kg. The main recommended areas are Yongping, Xiangyun and Midu County rapeseed planting areas.
3, the target output of 250kg / mu or more, per mu of farmer's fertilizer 2000 ~ 2500kg, nitrogen fertilizer (N) 16 ~ 20kg, phosphate fertilizer (P2O5) 5 ~ 7kg, potash fertilizer (K2O) 5 ~ 6kg; boron-poor soil acres of boron fertilizer 0.5 ~1.0kg. The main recommended area is the rapeseed planting area in Daishan County.
(3) Fertilization method
The farmer's fertilizer and boron fertilizer are uniformly mixed and applied with phosphorus, potassium fertilizer and 50% nitrogen fertilizer for one-time base fertilizer, 30% nitrogen fertilizer for seedling fertilizer (five-leaf stage), and 20% nitrogen fertilizer for bud fertilizer application.
Five, wheat
(1) Fertilization principle
For the production of wheat, there are diazo, light phosphorus, potassium, unbalanced application of nutrient ratio, less application of organic fertilizer, poor timing of fertilization, etc. The following fertilization principles are proposed.
1. Mainly organic fertilizer, supplemented by chemical fertilizer, re-applying base fertilizer, timely application of tiller fertilizer, jointing fertilizer, nitrogen, phosphorus and potassium.
2. Fertilizer application should be combined with water management and high-yield and high-quality cultivation techniques.
(2) Fertilization recommendations
1. The target output is 500kg/mu or more, and the farmer's fertilizer is 1500~2000kg per mu, nitrogen fertilizer (N) 10～14kg, phosphate fertilizer (P2O5) 3～4kg, potassium fertilizer (K2O) 5～6kg. The main recommended area is the high-yield planting area of ​​wheat in the five counties of the southeast.
2. The target output is 400kg/mu or more, 1000-1500kg of farmyard manure per acre, 14~16kg of nitrogen fertilizer (N), 4~5kg of phosphate fertilizer (P2O5), and 4~5kg of potassium fertilizer (K2O). The main recommended area is the high-yield planting area of ​​wheat in the four dam areas of the central and western regions.
3. The target output is 300kg/mu or more, 1000-1500kg per farmer of farmland, 16-18kg of nitrogen fertilizer (N), 5-6kg of phosphate fertilizer (P2O5), and 3~4kg of potassium fertilizer (K2O). The main recommended area is the middle and low-yield planting area of ​​mountain wheat.
(3) Fertilization method Agricultural fertilizer and phosphate fertilizer, 50% potassium fertilizer is applied as base fertilizer at one time, 40% nitrogen fertilizer is applied as seed fertilizer, 30% nitrogen fertilizer is applied as tiller fertilizer, 30% nitrogen fertilizer and 50% potassium fertilizer are used as joint fertilizer. Barley 60% nitrogen fertilizer is applied as seed fertilizer, 20% nitrogen fertilizer is applied as tiller fertilizer, 20% nitrogen fertilizer and 50% potassium fertilizer are used as joint fertilizer.
Six, garlic
(1) Fertilization principle
In view of the widespread application of garlic, the imbalance of nitrogen, phosphorus and potassium fertilizer application, and low utilization rate, the following fertilization principles are proposed.
1. Add organic fertilizer, control nitrogen, reduce phosphorus, and supplement potassium to achieve organic and inorganic combination.
2. Adjust the ratio of base fertilizer and top dressing according to the characteristics of soil fertilization and crop fertilizer requirements.
3. According to the condition of soil deficiency, rationally apply trace element fertilizer.
(2) Fertilization recommendations
The target yield is 1500～2500kg/mu, 2000-3000kg of farmyard manure per farmer or 200~300kg of commercial organic fertilizer, nitrogen fertilizer (N) 18.4～23kg, phosphate fertilizer (P2O5) 6.4～8kg, potash fertilizer (K2O) 15～20kg, as appropriate The micro-fertilizer is: 1.5-2.0kg of zinc sulfate and 0.75-1.25kg of borax. The main recommended areas are the garlic growing areas of Dali City, Wuyuan City and Midu County.
(3) Fertilization method
Farmhouse manure is applied as base fertilizer, using single chemical fertilizer, phosphate fertilizer, 40% nitrogen fertilizer and 50% potassium fertilizer as seed fertilizer application, 25% nitrogen fertilizer for seedling fertilizer (returning mother fertilizer), 35% nitrogen fertilizer and 50% potassium fertilizer for swelling fertilizer Application; combined with compound fertilizer and elemental fertilizer, 70% compound fertilizer and 30% potassium fertilizer for seed fertilizer, 35% nitrogen fertilizer for seed fertilizer application, 30% compound fertilizer, 65% nitrogen fertilizer, 70% potassium fertilizer for swelling fertilizer Apply. Spray 0.2% manganese, boron and zinc micro-fertilizer twice in the seedling stage.
Seven, potato
(1) Fertilization principle
In view of the problems of insufficient application of organic fertilizer and unreasonable application of nitrogen, phosphorus and potassium in potato production, the following principles of fertilization are proposed.
1. Add organic fertilizer and combine organic and inorganic.
2. Balanced application of nitrogen, phosphorus and potassium.
3, scientific adjustment of fertilizer, improve fertilizer utilization.
(2) Fertilization recommendations
1. The target output is 2500-3000kg/mu, 2000-2500kg per farmer of farmland, 6-11kg/mu of nitrogen fertilizer (N), 4.8-5.6 kg/mu of phosphate fertilizer (P2O5), 11-12 kg/mu of potash fertilizer (K2O) . The main recommended areas are the winter and spring potato growing areas of counties (cities) such as Dali, Nanxun and Midu.
2. Target production is 1500-2000kg/mu, 2000kg per farmer, nitrogen fertilizer (N) 10-15kg/mu, phosphate fertilizer (P2O5) 5-6 kg/mu, and potassium fertilizer (K2O) 9-10 kg/mu. The main recommended areas are the summer potato growing areas of Heqing (Machang), Xiangyun, Yunlong and other counties.
3. The target output is 800-1000kg/mu, 2000kg per farmer of farmland, 10-12kg/mu of nitrogen fertilizer (N), 5-6kg/mu of phosphate fertilizer (P2O5) and 13-15 kg/mu of potash fertilizer (K2O). The main recommended areas are the late autumn potato growing areas of Xiangyun, Dali, Binchuan, Midu and other counties (cities).
(3) Fertilization method
Farmyard manure is applied as base fertilizer or pond application, phosphate fertilizer and 60% nitrogen fertilizer and potassium fertilizer are used as seed fertilizer, and 40% nitrogen fertilizer and potassium fertilizer are applied as seedling fertilizer combined with deep application of soil.
Note:
1. Application of elemental fertilizer, with urea content of N46%, calcium content of P2O516%, potassium sulfate containing K2O 50%, and potassium chloride containing K2O 60%.
2. Apply compound (combined) fertilizer, based on the identified N, P2O5, K2O content, calculate the compounding amount of compound fertilizer with the least amount of nutrients, and the nutrient with more amount is supplemented with simple fertilizer.
Example: The formula for potato application is N 10 kg / mu, P2O55kg / mu, K2O 13 kg / mu.
Application of elemental fertilizer: urea = 10 ÷ 46% = 21.7 kg / acre, calcium is 5 ÷ 16% = 31.3 kg / acre, potassium sulphate = 13 ÷ 50% = 26.0 kg / acre.
Apply compound fertilizer with N:P2O5: K2O = 15:15:15, calculate the application amount of compound fertilizer with phosphorus, and supplement the nitrogen and potassium fertilizer with the single fertilizer.
Compound fertilizer = 5÷15%=33.3 kg/mu, urea=[10-(33.3×15%)]÷46%=10.9 kg/mu, potassium sulfate=[13-(33.3×15%)]÷50 %=16.0 kg/mu.
Dali Prefecture Academy of Agricultural Sciences
First, rice
(1) Fertilization principle
In view of the problems of unbalanced application of nitrogen, phosphorus and potassium fertilizers and less application of micro-fertilizers in rice production, the following fertilization principles are proposed.
1. Forefoot, central control, and post-complement.
2. Apply scientific formula of nitrogen, phosphorus and potassium fertilizers to supplement trace element fertilizers.
3. Add organic fertilizer and deep application of nitrogen fertilizer to achieve full-layer fertilization.
4, scientific management of water, water and fertilizer.
5. Fertilizer application combined with high-yield and high-quality cultivation techniques.
(2) Fertilization recommendations
1. The target output is 800kg/mu or more, 2000-2500kg per farmer of farmland, nitrogen fertilizer (N) 11-14kg/mu, phosphate fertilizer (P2O5) 4-5 kg/mu, potash fertilizer (K2O) 3-4 kg / mu, Zinc sulfate 2kg / mu. The main recommended areas are rice planting areas in low-calorie valleys such as Binchuan, Handan, Yongping, Yunlong and Huangping in Heqing County.
2. The target output is 750kg/mu or more, 1500kg-2000kg per farmer of farmland fertilizer, 12-18kg/mu of nitrogen fertilizer (N), 5-6 kg/mu of phosphate fertilizer (P2O5), and 3-5 kg/mu of potassium fertilizer (K2O). The main recommended area is the high-yield warm rice planting area in the counties of Laoshan, Midu and Xiangyun at an altitude of 1600-1900 meters.
3. The target output is 650kg/mu or more, 1000-2000kg per farmer of farmland, 5-10kg/mu of nitrogen fertilizer (N), 3-4 kg/mu of phosphate fertilizer (P2O5), and 3-4 kg/mu of potash fertilizer (K2O). Zinc sulfate 2kg / mu. The main recommended areas are the cool and cold rice growing areas of Dali City, Wuyuan County, Jianchuan County and Heqing County with an altitude of over 1900 meters.
(3) Fertilization method
Farmyard manure is applied as base fertilizer, phosphate fertilizer and 50% nitrogen fertilizer are applied as middle layer fertilizer, 20% nitrogen fertilizer and 20% potassium fertilizer are applied as tiller fertilizer, 30% nitrogen fertilizer and 80% potassium fertilizer are applied as joint fertilizer and panicle fertilizer, and zinc deficiency field is applied. When the middle layer of fertilizer is applied, 1-2 kg of zinc sulfate is applied per acre.
For the former vegetable, garlic and other fields, due to more fertilizer residues and high soil nutrient content, the seedlings should be fertilized according to the seedlings.
Second, corn
(1) Fertilization principle
In view of the lack of organic fertilizer application in corn production, the application of heavy fertilizers and phosphate fertilizers on chemical fertilizers, the application of potassium fertilizers and micro-fertilizers, the symptoms of deficiency in some fields, and the shallowness of mountain ploughing, the following fertilization principles are proposed.
1. According to the soil test results, the application of nitrogen, phosphorus and potassium fertilizers is scientifically formulated, and the application of trace element fertilizers is emphasized.
2. Add organic fertilizer to achieve full-layer fertilization.
3. Promote the application of high-yield, dense-tolerant and fertilizer-resistant varieties, increase corn yield, and give full play to fertilizer effects.
4, deep ploughing year by year to break the bottom of the plow, promote root development, improve water and fertilizer use efficiency.
5. Advocate the return of straw to the field, fertilize the soil and increase the application of potassium fertilizer.
6. Fertilizer application combined with high-yield and high-quality cultivation techniques.
(2) Fertilization recommendations
1. The target output is 800kg/mu or more, and 1500-2000kg of farmyard manure per mu is used as base fertilizer, nitrogen fertilizer (N) 18-23kg/mu, phosphate fertilizer (P2O5) 5-7 kg/mu, potash fertilizer (K2O) 5-6 kg / Mu, zinc sulfate 2kg / mu. The main recommended areas are high-yield corn growing areas in Dali, Binchuan and Xiangyun counties.
2. The target output is 650-800 kg / mu, 1500-2000 kg of farmer's fertilizer per mu, nitrogen fertilizer (N) 12-17 kg/mu, phosphate fertilizer (P2O5) 4-5 kg ​​/ mu, potash fertilizer (K2O) 4-5 kg ​​/ Mu, zinc sulfate 2kg / mu. The main recommended areas are medium and high-yield planting areas in Midu, Lushan, Yongping and Yunlong County.
3, the target output of 500kg / acre, 1500-2000kg per mu of farmyard manure, nitrogen fertilizer (N) 15-18kg / acre, phosphate fertilizer (P2O5) 5-7 kg / acre, potassium fertilizer (K2O) 4-5 kg ​​/ acre. The main recommended areas are medium and low-yielding corn growing areas in the counties of Min, Nanxun, Heqing, Wuyuan and Jianchuan.
(3) Fertilization method
Farmyard manure is applied as a base fertilizer, phosphate fertilizer, 40% potassium fertilizer and 10% nitrogen fertilizer are applied as seed fertilizer, 30% nitrogen fertilizer and 30% potassium fertilizer are applied as seed fertilizer, 50% nitrogen fertilizer and 30% potassium fertilizer are applied as panicle fertilizer, and zinc deficiency field is used. When applying the base fertilizer on the zinc-deficient field, apply 1-2 kg of zinc sulfate per acre.
Third, broad beans
(1) Fertilization principle
In view of the problem that the production of broad bean is not strong in scientific fertilization, the total amount of fertilization is insufficient, and the amount of organic fertilizer is too small, the following principles of fertilization are proposed.
1. Increase the amount of organic fertilizer and implement the return of crop straw to the field.
2. In areas with weak growth and low temperature, nitrogen fertilizer should be applied appropriately, and phosphorus and potassium fertilizer should be added.
3. Appropriately supplement the trace elements such as boron and molybdenum in different regions, adjust the application period and proportion of nitrogen fertilizer as appropriate, and strengthen the field management.
(2) Fertilization recommendations
1. The target yield is 150-200kg/mu, and the farmer's fertilizer per acre is 2000-2500kg or the crop straw (straw, corn stalk, etc.) is covered with whole field, nitrogen fertilizer (N) 1-2kg, phosphate fertilizer (P2O5) 4～5kg, potash fertilizer (K2O) 5 to 6 kg. The main recommended areas are Wuyuan Shangping, Heqing and Jianchuan County Broad Bean Growing Areas.
2, the target output of 250kg / acre, per mu of farmer's fertilizer 1000 ~ 1500kg or the implementation of crop straw (straw, corn stalks, etc.) full field coverage, nitrogen fertilizer (N) 1 ~ 2kg, phosphate fertilizer (P2O5) 4 ~ 5kg, potassium fertilizer ( K2O) 4 ~ 5kg. The main recommended areas are Wuyuan Xia, Dali, Yongping, Midu and Xiangyun County broad bean planting areas.
(3) Fertilization method
Farmyard manure, phosphate fertilizer and potash fertilizer are all applied as base fertilizer, nitrogen fertilizer is applied in the five-leaf stage, seed dressing with 0.2% ammonium molybdate or soaking with 0.1% ammonium molybdate solution for 10 to 12 hours, using 0.2% borax solution, phosphoric acid The potassium hydrogen solution is sprayed 1-2 times in the flower pod stage.
Fourth, rapeseed
(1) Fertilization principle
For the rapeseed production, there are problems such as unbalanced proportion of nitrogen, phosphorus and potassium nutrients, insufficient application of organic fertilizer, and lack of trace elements such as boron. The following principles of fertilization are proposed.
1. According to soil fertility conditions and target yield, balanced application of nitrogen, phosphorus and potassium fertilizers is mainly to adjust the amount of nitrogen fertilizer and increase the application of phosphorus and potassium fertilizer.
2. Supplement the boron fertilizer according to the effective boron status of the soil.
3. Add organic fertilizer, promote organic and inorganic cooperation and return straw.
4. Nitrogen and potassium fertilizers are applied in stages, and the proportion of nitrogen and potassium fertilizers in the middle stage of fertility is appropriately increased to improve the utilization rate of fertilizer.
(2) Fertilization recommendations
1. The target yield is 100-200kg/mu, 1000-2000kg per farmer of farmland, 10~16kg of nitrogen fertilizer (N), 3~5kg of phosphate fertilizer (P2O5), 5~7kg of potassium fertilizer (K2O); 0.5 to 1.0 kg. The main recommended areas are the rapeseed planting areas in Wuyuan County and Dali City.
2, the target output of 200 ~ 250kg / acre, 1,500 ~ 2500kg of farmer's fertilizer per acre, nitrogen fertilizer (N) 14 ~ 18kg, phosphate fertilizer (P2O5) 4 ~ 6kg, potassium fertilizer (K2O) 5 ~ 7kg; boron-poor soil 0.5 to 1.0 kg. The main recommended areas are Yongping, Xiangyun and Midu County rapeseed planting areas.
3, the target output of 250kg / mu or more, per mu of farmer's fertilizer 2000 ~ 2500kg, nitrogen fertilizer (N) 16 ~ 20kg, phosphate fertilizer (P2O5) 5 ~ 7kg, potash fertilizer (K2O) 5 ~ 6kg; boron-poor soil acres of boron fertilizer 0.5 ~1.0kg. The main recommended area is the rapeseed planting area in Daishan County.
(3) Fertilization method
The farmer's fertilizer and boron fertilizer are uniformly mixed and applied with phosphorus, potassium fertilizer and 50% nitrogen fertilizer for one-time base fertilizer, 30% nitrogen fertilizer for seedling fertilizer (five-leaf stage), and 20% nitrogen fertilizer for bud fertilizer application.
Five, wheat
(1) Fertilization principle
For the production of wheat, there are diazo, light phosphorus, potassium, unbalanced application of nutrient ratio, less application of organic fertilizer, poor timing of fertilization, etc. The following fertilization principles are proposed.
1. Mainly organic fertilizer, supplemented by chemical fertilizer, re-applying base fertilizer, timely application of tiller fertilizer, jointing fertilizer, nitrogen, phosphorus and potassium.
2. Fertilizer application should be combined with water management and high-yield and high-quality cultivation techniques.
(2) Fertilization recommendations
1. The target output is 500kg/mu or more, and the farmer's fertilizer is 1500~2000kg per mu, nitrogen fertilizer (N) 10～14kg, phosphate fertilizer (P2O5) 3～4kg, potassium fertilizer (K2O) 5～6kg. The main recommended area is the high-yield planting area of ​​wheat in the five counties of the southeast.
2. The target output is 400kg/mu or more, 1000-1500kg of farmyard manure per acre, 14~16kg of nitrogen fertilizer (N), 4~5kg of phosphate fertilizer (P2O5), and 4~5kg of potassium fertilizer (K2O). The main recommended area is the high-yield planting area of ​​wheat in the four dam areas of the central and western regions.
3. The target output is 300kg/mu or more, 1000-1500kg per farmer of farmland, 16-18kg of nitrogen fertilizer (N), 5-6kg of phosphate fertilizer (P2O5), and 3~4kg of potassium fertilizer (K2O). The main recommended area is the middle and low-yield planting area of ​​mountain wheat.
(3) Fertilization method Agricultural fertilizer and phosphate fertilizer, 50% potassium fertilizer is applied as base fertilizer at one time, 40% nitrogen fertilizer is applied as seed fertilizer, 30% nitrogen fertilizer is applied as tiller fertilizer, 30% nitrogen fertilizer and 50% potassium fertilizer are used as joint fertilizer. Barley 60% nitrogen fertilizer is applied as seed fertilizer, 20% nitrogen fertilizer is applied as tiller fertilizer, 20% nitrogen fertilizer and 50% potassium fertilizer are used as joint fertilizer.
Six, garlic
(1) Fertilization principle
In view of the widespread application of garlic, the imbalance of nitrogen, phosphorus and potassium fertilizer application, and low utilization rate, the following fertilization principles are proposed.
1. Add organic fertilizer, control nitrogen, reduce phosphorus, and supplement potassium to achieve organic and inorganic combination.
2. Adjust the ratio of base fertilizer and top dressing according to the characteristics of soil fertilization and crop fertilizer requirements.
3. According to the condition of soil deficiency, rationally apply trace element fertilizer.
(2) Fertilization recommendations
The target yield is 1500～2500kg/mu, 2000-3000kg of farmyard manure per farmer or 200~300kg of commercial organic fertilizer, nitrogen fertilizer (N) 18.4～23kg, phosphate fertilizer (P2O5) 6.4～8kg, potash fertilizer (K2O) 15～20kg, as appropriate The micro-fertilizer is: 1.5-2.0kg of zinc sulfate and 0.75-1.25kg of borax. The main recommended areas are the garlic growing areas of Dali City, Wuyuan City and Midu County.
(3) Fertilization method
Farmhouse manure is applied as base fertilizer, using single chemical fertilizer, phosphate fertilizer, 40% nitrogen fertilizer and 50% potassium fertilizer as seed fertilizer application, 25% nitrogen fertilizer for seedling fertilizer (returning mother fertilizer), 35% nitrogen fertilizer and 50% potassium fertilizer for swelling fertilizer Application; combined with compound fertilizer and elemental fertilizer, 70% compound fertilizer and 30% potassium fertilizer for seed fertilizer, 35% nitrogen fertilizer for seed fertilizer application, 30% compound fertilizer, 65% nitrogen fertilizer, 70% potassium fertilizer for swelling fertilizer Apply. Spray 0.2% manganese, boron and zinc micro-fertilizer twice in the seedling stage.
Seven, potato
(1) Fertilization principle
In view of the problems of insufficient application of organic fertilizer and unreasonable application of nitrogen, phosphorus and potassium in potato production, the following principles of fertilization are proposed.
1. Add organic fertilizer and combine organic and inorganic.
2. Balanced application of nitrogen, phosphorus and potassium.
3, scientific adjustment of fertilizer, improve fertilizer utilization.
(2) Fertilization recommendations
1. The target output is 2500-3000kg/mu, 2000-2500kg per farmer of farmland, 6-11kg/mu of nitrogen fertilizer (N), 4.8-5.6 kg/mu of phosphate fertilizer (P2O5), 11-12 kg/mu of potash fertilizer (K2O) . The main recommended areas are the winter and spring potato growing areas of counties (cities) such as Dali, Nanxun and Midu.
2. Target production is 1500-2000kg/mu, 2000kg per farmer, nitrogen fertilizer (N) 10-15kg/mu, phosphate fertilizer (P2O5) 5-6 kg/mu, and potassium fertilizer (K2O) 9-10 kg/mu. The main recommended areas are the summer potato growing areas of Heqing (Machang), Xiangyun, Yunlong and other counties.
3. The target output is 800-1000kg/mu, 2000kg per farmer of farmland, 10-12kg/mu of nitrogen fertilizer (N), 5-6kg/mu of phosphate fertilizer (P2O5) and 13-15 kg/mu of potash fertilizer (K2O). The main recommended areas are the late autumn potato growing areas of Xiangyun, Dali, Binchuan, Midu and other counties (cities).
(3) Fertilization method
Farmyard manure is applied as base fertilizer or pond application, phosphate fertilizer and 60% nitrogen fertilizer and potassium fertilizer are used as seed fertilizer, and 40% nitrogen fertilizer and potassium fertilizer are applied as seedling fertilizer combined with deep application of soil.
Note:
1. Application of elemental fertilizer, with urea content of N46%, calcium content of P2O516%, potassium sulfate containing K2O 50%, and potassium chloride containing K2O 60%.
2. Apply compound (combined) fertilizer, based on the identified N, P2O5, K2O content, calculate the compounding amount of compound fertilizer with the least amount of nutrients, and the nutrient with more amount is supplemented with simple fertilizer.
Example: The formula for potato application is N 10 kg / mu, P2O55kg / mu, K2O 13 kg / mu.
Application of elemental fertilizer: urea = 10 ÷ 46% = 21.7 kg / acre, calcium is 5 ÷ 16% = 31.3 kg / acre, potassium sulphate = 13 ÷ 50% = 26.0 kg / acre.
Apply compound fertilizer with N:P2O5: K2O = 15:15:15, calculate the application amount of compound fertilizer with phosphorus, and supplement the nitrogen and potassium fertilizer with the single fertilizer.
Compound fertilizer = 5÷15%=33.3 kg/mu, urea=[10-(33.3×15%)]÷46%=10.9 kg/mu, potassium sulfate=[13-(33.3×15%)]÷50 %=16.0 kg/mu.
Dali Prefecture Academy of Agricultural Sciences
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3D LED Ball with diameter 50mm which in model 50mm 3D led ball, with diameter 40mm with in model 40mm 3D led ball. We can manuafacture the 3D led ball in different color, milky led ball, clear led ball, icy led ball, silver led ball, gold led ball, which all can give 360° viewing angle, different color led ball to meet the different designer minds for different installation and application. The 3D LED Ball used for 3d led night light, DC15V input, 1W led ball, and max 50 pcs strings led ball.
Photo show of 3D LED Ball:
3D Led Ball,3D Led Night Light,3D Led Disco Ball,3D Led Pixel Ball
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