有机肥是慢效肥料，可以和速效化肥结合使用。
Organic fertilizers are slow-acting. They can be used in combination with quick-acting chemicals.
这表明施用生物有机肥能提高土壤有机质、速效K含量和微生物数量，增强土壤转化酶活性，并能提高鲜薯产量和淀粉产量。
Thus bioorganic fertilizer increased the organic matter and available K contents, microorganism numbers and invertase activity in soil, and increased fresh cassava yield and starch yield.
结果表明，施用有机肥能显著增加旱地红壤的速效磷含量。
Effect of different rate of organic manure on phosphorus species is studied in arid red soil.
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