In rice production, scientific and rational application of potash fertilizer plays an important role in cultivating robust seedlings, improving disease resistance, insect resistance, lodging resistance and seed setting rate, and seizing high and stable yields. According to monitoring, it takes about 15 kg of potassium chloride per 500 kg of rice produced. The key links in the application of potassium fertilizer in rice are described below:
First, potash fertilizer suitable for seedling stage, as a base fertilizer application of seedlings.
Second, pick potassium fertilizer during childbirth.
III. Potassium Fertilizer During the Spike Differentiation Stage Potassium fertilizer should be applied according to the growth condition of the early growth of rice.
Fourth, the booting, milk cooked, yellow ripening potash fertilizer.
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