Due to factors such as denitrification, nitrogen volatilization, and leaching, the utilization rate of nitrogen fertilizer on rice is only about 35%. There is great potential for reducing the loss of nitrogen fertilizers and increasing the yield of nitrogen fertilizers. In addition to controlling the appropriate amount of nitrogen fertilizers, appropriate application in divided doses, combined application of phosphorus and potassium fertilizers and trace elements, the current more mature method is not limited to a simple and effective practical technology.
The method is: When a new root appears on the field to the field surface and shows a heavy cracking, the required nitrogen fertilizer or special rice and wheat fertilizer is spread on the field surface before rehydration, and the “nitrogen with water belt†can be achieved. The purpose can be used as long-grain rice or panicle fertilizer depending on the time.
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