条件筛选
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How to correctly choose compound fertilizer? Remember these five key points
Five key points for correctly choosing compound fertilizer
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Five key points for efficient and scientific application of potassium fertilizer
Veteran vegetable grower Master Chang switched to growing tomatoes these past two years, and his yields and returns have remained good, because he pays close attention to soil testing and fertilization. When he tested his soil last year, the organic matter in his greenhouse soil reached 27.25g/kg. Because the soil organic matter content was relatively high, this spring he did not use organic fertilizer, but instead applied 40 kg of compound fertilizer per mu, 7...