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在河南省中低产棉区进行微区及 2 2个田间小区试验。结果表明 ,不同施肥结构的基础上 ,每667m2 耕地增施 K2 O 5～ 1 0 kg,对皮棉产量有显著的增产作用 ,同时棉花生长发育及纤维品质也得到明显改善 ;钾肥追施与底施效果相当
In the low-middle cotton area of Henan Province, micro-area and 22 field plots were tested. The results showed that applying K 2 O 5 ~ 10 kg per 667m 2 of arable land resulted in significant increase in lint yield and significantly improved cotton growth and fiber quality; The effect is quite