菏泽市麦套棉氮磷钾肥用量研究

Dosage of NPK on Wheat-Cotton Double Cropping in Heze City

[目的]为摸清在中等肥力、偏碱性沙壤土条件下麦套棉氮磷钾用量。[方法]各取氮磷钾3种肥料5个施用量,采用随机区组设计,调查各处理对产量的影响。[结果]在该地力水平下,当氮225 kg/hm2、磷180 kg/hm2、钾150 kg/hm2时产量最高。[结论]该研究结果为菏泽市及相关地区麦套棉氮磷钾肥用量提供参考依据。

[ Objective ] The research aimed to find out NPK dosage on wheat-cotton double cropping in the moderate fertility and alksline silty loam. [ Method] Five contents of NPK fertilizer were applied. Randomized block design was adopted to investigate the effects of the processing on yield. [ Result] Under the soil fertility level, when the dosage of nitrogen was 225 kg/hm^2, the dosage of phosphorus was 180 kg/hm^2 and dosage of potassium was 150 kg/hm^2, the yield was the highest. [ Conclusion] The research results could provide the reference for NPK fertil- izer dosage in Heze City and related areas.