slowly available potassium
常见例句
- The results showed the average contents of available K, slowly released K in potassium pools in tea-grown soils were significantly increased by potassium fertilizer.
结果表明，施用钾肥能明显提高土壤钾库中的速效钾和缓效钾含量，但对土壤全钾含量影响不大； 返回 slowly available potassium