常見例句雙語例句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.結(jié)果表明，施用鉀肥能明顯提高土壤鉀庫中的速效鉀和緩效鉀含量，但對土壤全鉀含量影響不大； 返回 slowly available potassium