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Second, early Shi Ti Miao Fei. 4-6 leaf of corn, Mushi 10-15 kg of superphosphate, 3-5 kg ​​of urea, 2 kg of zinc fertilizer is applied to 10-15 kg of human and animal manure.
Third, chase after the application of fertilizer. When corn grows to 8-9 leaves, Mushi applies high-efficiency ternary compound fertilizer 10-15 kilograms, manure water 1500-2000 kilograms, and 10-15 kilograms of ammonium bicarbonate, combined with cultivator loose soil.
Fourth, re-appropriate attack Feifei. When corn enters the big bellmouth, the booting period is a sensitive period of water and fertilizer. Generally 10-15 days before heading, Mushi quickly available 30-30 kg of ammonium bicarbonate or 20-25 kg of urea to human and livestock manure water 15-20 shuishi.
Fifth, Zhu Shi strong grain fertilizer. After maize heading to flowering, depending on the corn growing condition, 3-4 kg of urea can be used to flush the manure water with the urea; it can also be used at the time of tasseling flowering, 8-9 am or 5 pm, 0.3-0.4% for mu. Potassium dihydrogen phosphate was sprayed with 0.5% urea solution. Application of granule fertilizer can prevent premature aging of leaves, increase photosynthesis, extend the filling period, and increase the seed setting rate.
High yield of corn creates fertilization
First, apply base fertilizer. The base fertilizer is dominated by organic fertilizers, combined with nitrogen, phosphorus and potassium compound fertilizers. General Mushi organic fertilizer 1500-2000 kilograms, 45% of nitrogen, phosphorus, potassium compound fertilizer 25 kilograms, fertilization, cover fine soil 2-3 cm thick and then sow the cover soil, and dredge clear manure 10 tens.