阿克苏棉区不同氮磷钾配比对棉花产量的影响  

Effect of the Proportion of Nitrogen, Phosphorus and Potassium to Cotton Yield in Akesu Region, Xinjiang

作　　者：付明鑫[1] 向敏超[1] 孟风轩[1] 许咏梅[1] 

机构地区：[1]新疆农业科学院土壤肥料研究所,乌鲁木齐830000

出　　处：《西北农业学报》2000年第2期117-120,共4页Acta Agriculturae Boreali-occidentalis Sinica

摘　　要：在新疆阿克苏棉区开展了氮磷钾最佳配比和施用量 (专用肥 )的田间试验。结果表明 ,N在 1 72 .5～2 4 1 .5kg/hm2 的前提下 ,氮磷钾各因素对棉花产量的影响顺序为 P>K>N;最佳氮磷钾配比为 N∶P2 O5 ∶K2 O=1∶ 0 .67∶ 0 .2 3。氮、磷对棉花单株铃数影响较大 ,而钾对单铃重的影响较大。按最佳氮磷钾配比制作成棉花专用肥 ,其最高产量施肥量为 74 3 .2 kg/hm2。The results of the fields experiment in Akesu region in South Xinjiang show that the sequence of nitrogen , phosphorus and potassium affecting the cotton yield is P>K>N from 172.5 kg/hm 2 to 241.5 kg/hm 2 of N. Phosphorus and nitrogen are more important factor effecting the cotton boll number per plant than potassium and potassium is an important factor to the cotton boll weight. The proper proportion of N, P 2O 5 and K 2O in Akesu region of South Xinjiang is 1∶0.67∶0.23. Special fertilizer was made according to this proper proportion and the amount of the special fertilizer applying of the highest yield is 743.2 kg/hm 2.

关 键 词：氮磷钾配比 棉花 产量 阿克苏棉区 新疆 肥料 

分 类 号：S562.062[农业科学—作物学]