One-time fertilization by fractional fertilization during droughts can easily lead to contamination of the ground garden. If heavy rains are encountered after a drought, the applied fertilizers are easily washed away, which not only causes economic losses to farmers, but also pollutes the environment.
In the case of drought, deep fertilization materials are likely to evaporate if only the fertilizer is applied to the surface. If the drought is followed by heavy rain, it is also easy to be washed away by rain. Therefore, fertilizers should be applied as far as possible to maintain fertilizer efficiency.
Paying attention to the use of potash fertilizer and potash fertilizer application of potassium fertilizer can make the crop leaf stomata smaller, reduce the loss of water transpiration, and be beneficial to drought resistance. In addition, drought is prone to induce boron deficiency in crops, especially in growing peanuts, fruit trees, rapeseed, etc. Boron fertilizer should be applied.
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