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Water and gas pooling. The suitable water holding capacity of sweet potato growing soil is 60%-70% in the early stage, 70%-80% in the middle stage, and 60% in the later stage. When the morning potato leaves are wilting due to drought, it is necessar…

First, should not be mixed with alkaline fertilizer or applied with urea can not be mixed with lime, grass ash, calcium magnesium phosphate fertilizer and other alkaline fertilizers applied simultaneously. In general, in summer and autumn, urea and alkaline fertilizers should be staggered …

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Apply enough base fertilizer. Apply 40 ~ 50 kg of compound fertilizer of nitrogen, phosphorus and potassium (15-15-15) per ditch, and 8-10 kg of biological bacterial fertilizer. After covering with a layer of soil, plant garlic seeds, and then use…