How to fertilize spring corn?

2024-04-19 19:06:43

Nitrogen, phosphorus and potassium are the three main nutrients needed for corn growth and development. Each production of 100 kg of corn kernels requires absorption of 3.57 kg of nitrogen and phosphorus (P2O5) 1.3-1.5 kg of potassium (K2O) 2.14 kg.

Specific fertilization: 1, the base fertilizer is applied 1500-2000 kg of organic fertilizer based on "Xiang" brand nitro compound fertilizer 20 kg potassium sulfate 2 kg. 2. Jointing fertilizer in the 6.5-7 leaf stage (35-40 days after sowing) 15 kg of "Xiang" brand nitro compound fertilizer combined with small soil; 3, Spike fertilizer in 10.5-11 leaves (60 days after sowing) "Xiang" brand nitro compound fertilizer 20 kg per mu of potassium fertilizer per mu 10 kg combined with cultivating large cultivating soil.

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