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Fertilizing techniques in rape fields
1, Shizu base fertilizer should account for about 60% of the total fertilization. The medium fertility plots are generally 2000-3000 kilograms of organic manure, 50-60 kilograms of cake fertilizer, 10-15 kilograms of urea, 30-40 kilograms of superphosphate, 8-10 kilograms of potassium chloride, and 0.5 borax. 1 kg. 2, early application of Miao Miao fertilizer appropriate early application, should account for the total amount of 10% -15%. General mu with decomposed human waste 500 kg, plus urea 5-7 kg. 3, stable application of wax and wax fertilizer to slow release fertilizer to warm the main, 3000 ~ 4000 kg of soil miscellaneous fertilizer, 20-30 kg of bio-organic fertilizer. 4. Re-apply manure manure Manure is a fertilizer with high fertilization efficiency in the life of rapeseed, usually accounting for about 30% of the total fertilization. Large seedlings, yellow plants that have fallen from strength, and lack of soil stamina are required to reapply fertilizers. Nitrogen fertilizer and potash fertilizers are required for fertilizers. Generally, 15-20 kg of urea and 5-6 kg of potassium chloride are applied. Severely lack of fertilizer field blocks, manure should be divided into 2 times, compared to the time before the application of a one-time manure 5-7 days, the second time interval 10-15 days, a little more. 5, Qiao Shi Hua fertilizer application can make up for lack of fertility in the late stage, the role of anti-off force. After spring, it is stable and its fertility is insufficient. Mushi urea 4-7 kg, or ammonium sulfate 8-10 kg. For those who are weak in their early years, those who grow well and those who are staunch are not. 6. Boron-assisted B. napus L. is a boron-tolerant crop, and hybrid rape is more sensitive to boron. The use of basal fertilizer and foliar spray for boron fertilizer is more economical and efficient. When the basal fertilizer was mixed with 500 grams of base fertilizer, when sprayed leaves were selected in the bud stage, early flowering period, each with 150 grams of borax, watered 50-75 kg, and even sprayed twice. 7. After the application of leaf-fertilizer, the root activity of the rapeseed was decreased, and the application of leaf fertilizer was an effective method to prolong the life span of leaves and stems, increase the grain weight and increase the yield. In general, 150 grams of potassium dihydrogen phosphate, 500 grams of urea, and 50-60 kilograms of water are used per mu, and the spray is sprayed 2-3 times, which can also be combined with pest control and insecticide application.