钾肥肥效
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residual effect of potassium fertilizer 钾肥后效
·2,447,543篇论文数据，部分数据来源于NoteExpress
Potassium-supplying characters and the effect of potassium fertilizer for Chao and Cinnamonsoils were studied with adsorption method, pot cultivation and field trials.
采取吸附试验、盆栽试验和田间试验方法，对潮土和褐土的供钾特性及钾肥肥效进行了研究。
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