No-till live rapeseed should be supplemented with fertilizer. No-tillage directing of rapeseed, rushing when planting, often insufficient fertilization of base fertilizer. At the end of autumn this year, it was sunny and rainy, and the surface hardening of farming was not conducive to the absorption of fertilizer in the early stage. Many farmers used the fertilization habit of ploughing and transplanting rapeseed, and only applied some seedlings, and many of the hills were not applied. In this way, due to lack of fertilizer, some of the mounds are thin and weak, with insufficient nutrients, few branches, high branch nodes, and poor plant growth. Therefore, for no-till live rapeseed, on the basis of early application of seedling fertilizer, it is necessary to open a "small stove" to supplement the fertilizer, to strengthen the body and build a good shelf.
Replenish seedlings. After harvesting mid-late rice in most areas of the south this year, there is little rainfall. Many people want to wait for the rain and apply fertilizer, and they miss the period of application of the seedling fertilizer. For the hills that are not applied with seedlings or insufficient fertilizer, apply 15-20 kg of ammonium bicarbonate or 7-8 kg of urea per acre, add 250-300 g of boron fertilizer to form a thin fertilizer solution, and combine drought resistance.
Stabilize the application of wax fertilizer. The wax fertilizer is mainly based on slow-acting fertilizers, which can increase the temperature and keep warm to improve the cold resistance. Generally, the soil is mixed with 2500-3000 kg of soil and fertilizer, 10-20 kg of 45% compound fertilizer or 20-30 kg of 25% compound fertilizer. It is applied before the freezing of the month (December). Before fertilization, weeding and weeding, then fertilizing the straw, then shoveling the roots of the soil, and covering it with 300-400 kg of dry straw.
Reapply fertilizer. Manure is the first fertilizer with higher fertilization efficiency in the whole life of no-tillage rapeseed, which usually accounts for about 30% of the total fertilization amount. To do it when you apply it: First, you need to see fertilization. The seedlings are large, the fertilization is yellow, the soil fertility is insufficient, and the field is reapplied. Second, nitrogen and potassium fertilizers should be used together. For the autumn and winter strong seedlings, in the beginning of February, generally 8 to 10 kg of urea per acre, 5 to 7 kg of potassium chloride. The third is to seriously reduce the number of fertilizer fields, 10 to 15 kg of urea, 7 to 8 kg of potassium fertilizer, 150 to 250 kg of human excrement, and apply twice, compared with the application period of 1 time manure, 7 ～10 days administration, 2 times interval 10 to 15 days.
Skillful application of flower fertilizer. Flower fertilizer can make up for the lack of fertility, anti-fertilization and short flowering period in the middle and late stage of no-tillage rapeseed, which can prolong the inflorescence and increase the number of pods. For the post-spring stable and fertile soil, the average application of urea is 3 to 5 kg, or ammonium sulfate is 6 to 10 kg. At the same time, the group or individual with weak growth should be applied early, but the growth is good and the strength of the field is not suitable. Apply again.
Must apply boron fertilizer. Brassica napus is a boron-loving crop that is more sensitive to boron. Boron is generally more economical and effective with mixed application of base fertilizer and foliar application. On the basis of the application of base fertilizer, 150 g of borax is used per acre in the bud period and initial flowering period, or 150 ml of liquid boron fertilizer is sprayed twice for 50 to 75 kg of water.
Make up strong fruit fertilizer. After the rapeseed blooms, the pods begin to form and grow, and there is still a large demand for nutrients. Moreover, the rapeseed consumes a lot of nutrients after flowering, and the root activity decreases. The application of foliar fertilizer can prolong the life of functional leaves, enhance the metabolism of stems, improve the transport capacity of water and nutrients, prolong the effective inflorescence, increase the number of pods and the weight of grains. , thereby increasing yields. Generally, it is economical and convenient; each time 150g of potassium dihydrogen phosphate, 500g of urea, 50-75kg of water, and 2~3 times of spraying, can also be combined with anti-disease and pest control to spray on the foliar surface.
Replenish seedlings. After harvesting mid-late rice in most areas of the south this year, there is little rainfall. Many people want to wait for the rain and apply fertilizer, and they miss the period of application of the seedling fertilizer. For the hills that are not applied with seedlings or insufficient fertilizer, apply 15-20 kg of ammonium bicarbonate or 7-8 kg of urea per acre, add 250-300 g of boron fertilizer to form a thin fertilizer solution, and combine drought resistance.
Stabilize the application of wax fertilizer. The wax fertilizer is mainly based on slow-acting fertilizers, which can increase the temperature and keep warm to improve the cold resistance. Generally, the soil is mixed with 2500-3000 kg of soil and fertilizer, 10-20 kg of 45% compound fertilizer or 20-30 kg of 25% compound fertilizer. It is applied before the freezing of the month (December). Before fertilization, weeding and weeding, then fertilizing the straw, then shoveling the roots of the soil, and covering it with 300-400 kg of dry straw.
Reapply fertilizer. Manure is the first fertilizer with higher fertilization efficiency in the whole life of no-tillage rapeseed, which usually accounts for about 30% of the total fertilization amount. To do it when you apply it: First, you need to see fertilization. The seedlings are large, the fertilization is yellow, the soil fertility is insufficient, and the field is reapplied. Second, nitrogen and potassium fertilizers should be used together. For the autumn and winter strong seedlings, in the beginning of February, generally 8 to 10 kg of urea per acre, 5 to 7 kg of potassium chloride. The third is to seriously reduce the number of fertilizer fields, 10 to 15 kg of urea, 7 to 8 kg of potassium fertilizer, 150 to 250 kg of human excrement, and apply twice, compared with the application period of 1 time manure, 7 ～10 days administration, 2 times interval 10 to 15 days.
Skillful application of flower fertilizer. Flower fertilizer can make up for the lack of fertility, anti-fertilization and short flowering period in the middle and late stage of no-tillage rapeseed, which can prolong the inflorescence and increase the number of pods. For the post-spring stable and fertile soil, the average application of urea is 3 to 5 kg, or ammonium sulfate is 6 to 10 kg. At the same time, the group or individual with weak growth should be applied early, but the growth is good and the strength of the field is not suitable. Apply again.
Must apply boron fertilizer. Brassica napus is a boron-loving crop that is more sensitive to boron. Boron is generally more economical and effective with mixed application of base fertilizer and foliar application. On the basis of the application of base fertilizer, 150 g of borax is used per acre in the bud period and initial flowering period, or 150 ml of liquid boron fertilizer is sprayed twice for 50 to 75 kg of water.
Make up strong fruit fertilizer. After the rapeseed blooms, the pods begin to form and grow, and there is still a large demand for nutrients. Moreover, the rapeseed consumes a lot of nutrients after flowering, and the root activity decreases. The application of foliar fertilizer can prolong the life of functional leaves, enhance the metabolism of stems, improve the transport capacity of water and nutrients, prolong the effective inflorescence, increase the number of pods and the weight of grains. , thereby increasing yields. Generally, it is economical and convenient; each time 150g of potassium dihydrogen phosphate, 500g of urea, 50-75kg of water, and 2~3 times of spraying, can also be combined with anti-disease and pest control to spray on the foliar surface.
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