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.

youdao

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.

youdao

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.

youdao