Science and Technology 110 Science and Technology Co., Ltd. Popularization of QQ Group User "My family open agricultural capital" Q: What kind of medicine is used to cure the leaves of cotton?
Science and technology 110 experts answer: Cotton stem blight is not caused by bacteria, but is a physiological deficiency, especially due to potassium deficiency. Therefore, in the middle and later stages of cotton, nitrogen fertilizer should be less applied, and attention should be paid to the addition of potassium fertilizer, such as spraying several times more potassium dihydrogen phosphate.
Q: What is the maximum amount of potassium dihydrogen phosphate in a sprayer water (15 kg) when potassium dihydrogen phosphate is sprayed on the cotton?
The expert group replied: This needs to be determined based on the specific content and quality of the product. For example, a product with a content of about 98% and a good process quality, generally a sprayer can put 20-40 grams.
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