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What are the precautions for applying biological potassium fertilizer?
How should cotton be supplemented with potassium fertilizer? For supplementing cotton with potassium fertilizer, it is generally best to use coarse fertilizer as a base dressing. At present, returning straw to the field should be strongly advocated. According to surveys, returning about 800 kg per 667 sq m can not only return 4 kg of potassium oxide to the soil, but also convert slowly available potassium in the soil into available potassium. Potassium fertilizer...
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Detailed Explanation of Phosphorus Fertilizer Utilization Rate and Physiological Role
The utilization rate of phosphorus fertilizer is much lower than that of nitrogen fertilizer and potassium fertilizer. In China, the utilization rate of phosphorus fertilizer is generally in the range of 10%-25%. Among vegetable crops, legumes have a relatively higher utilization rate. There are two main reasons for the low utilization rate of phosphorus fertilizer: the first reason is the fixation of phosphorus fertilizer in the soil, whether water-soluble, citrate-soluble...
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