新疆三个主要棉区棉花专用肥施用技术的研究

Applying technology of Cotton special Fertilizer in 3 Main Cotton-plant Areas in Xinjiang

在新疆南北疆三个主要植棉区进行的棉花施肥技术田间试验结果表明 ,在南疆以施 N36 0 kg/hm2 ,P2 O5180 kg/hm2 ,K2 O90 kg/hm2 ,微量元素以锌和锰为主 ,可获得高产。在北疆以无机掺混肥和有机 -无机复合肥 ,施肥量以专用肥 875 .0kg/hm2作基肥 ,追施尿素 2 17.5 kg/hm2 ,可获得高产。在施肥方法上 ,南北疆均以氮肥用量的 40 %作追肥 ,其余氮磷钾肥料作基肥的施肥方法产量较高 。

The applying technology of cotton special fertilizer in 3 main cotton-plant areas in Xinjiang was studied.The results of the field experiment showed that applying N 360 kg/hm 2,P 2O 5180 kg/hm 2,K 2O90 kg/hm 2 to cotton in South Xinjiang ,the yield was the highest,meanwhile,the trace elements Zn and Mn must be proper apply.In North Xinjiang,applying the cotton special fertilizer 875.0 kg/hm 2 to base fertilizer and the carbamide 217.5 kg/hm 2 to top applycation,applying the inorganic Bulk Blend Fertilizer or organic-inorganic compound fertilizer,the cotton yield could be the 60% amount of carbamide and the total phosphate and potash fertilizer to base fertilizer,the cotton yield was higher in South and North Xinjiang. The amaunt of increase in yield was the best.