How to fertilize in hot and dry weather

How to scientifically fertilize in hot and dry weather

Fertilized varieties apply more phosphorus fertilizer and less nitrogen fertilizer.

On the one hand, phosphate fertilizer can be used more effectively at higher temperature, resulting in good fertilizer efficiency; On the other hand, it can improve the utilization rate of water in soil and play a role in alleviating drought and promoting each other. In addition, sufficient phosphate fertilizer can improve nitrogen utilization rate and play a role in nourishing nitrogen with phosphorus. Reducing the amount of nitrogen fertilizer, especially ammonium bicarbonate which is easily decomposed by heat, is because ammonium bicarbonate which is easily decomposed by heat and high concentration of nitrogen fertilizer are easy to cause crop seedling burning.

The amount of fertilizer applied cannot be equal to the amount applied in normal weather.

In dry and hot season, soil moisture evaporates strongly and the concentration of surface water solution increases sharply. At this time, if we don't fertilize as much as normal weather, the crop yield will not be maintained or increased, but will also decrease. For example, in the case of moderate precipitation, the application of 12kg pure nitrogen per mu of corn may achieve high yield, but if the same amount of fertilizer is still applied in the case of high temperature and drought, it will lead to the risk of yield reduction.