播种前底施磷肥水平对邯棉802产量及纤维品质的影响

Effects of Phosphate Fertilizer Levels before Planting on Yield and Fiber Quality of Hanmian 802

以邯棉802为试验材料,在棉花播种前底施过磷酸钙、氯化钾150 kg/hm2和尿素120 kg/hm2作底肥,试验设过磷酸钙施用量0(不施,CK)、180、270、360和450 kg/hm2计5个处理,在最佳种植密度52 500株/hm2条件下,分析不同施磷量对棉花产量及纤维品质的影响,以探索实现棉花产量与纤维品质最佳结合的磷肥最佳施用量。结果表明:播种前底施磷肥360 kg/hm2,邯棉802产量较高且纤维品质最好,能够实现棉花产量与纤维品质的最佳结合。

Taking Hanmian 802 as test material, application of calcium superphosphate, potassium chloride 150 kg/hm2 and urea 120 kg/hm2 before planting as basal fertilizer, and five calcium superphosphate application amount treatments of 0 （not applied, CK）, 180, 270, 360 and 450 kg/hm2 were set, the effects of different phosphate levels on yield and fiber quality of cotton were analyzed in the optimum planting density 52 500/hm2 condition, in order to explore the optimal phosphorus fertilizer for realizing the optimal combination of cotton yield and fiber quality.The results showed that applied 360 kg/hm2 of phosphate fertilizer before planting, the yield was higher and the fiber quality was best, under which the optimal combination of yield and fiber quality could be achieved.