【作者】 付明鑫； 向敏超； 许咏梅； 王慧；

【Author】 Fu Mingxin Xiang Mingchao Xu Yongmei Wang Hui(lustitute of Soil and Fertilizer, Xinjiang Academy of Agricultural Sciences, Ulumuqi 830000)

【机构】 新疆农业科学院土壤肥料研究所；

【摘要】 在北疆灰漠土棉区精河县和石河子市开展了棉花氮磷钾适宜用量及其对产量影响的田间试验,结果表明:N在施用量172.5～241.5kg/hm²范围内,氮磷钾各因素对棉花产量的影响顺序为K>N>P;P素对单株铃数、单铃重影响较大,不容忽视。在本试验条件下,北疆灰漠土棉区获得棉花高产的适宜氮磷钾用量为N=191.07kg/hm²,P₂O₅=120.0kg/hm²,K₂O=45.27kg/hm²。按试验得到的棉花高产的氮磷钾适宜配比做成棉花专用肥,其最高产量施肥量为840.4kg/hm²。更多还原

【Abstract】 The results of the field experiment on the Grey Desert Soil in Jinghe county of North Xinjiang show that the sequence of nitrogen, phosphorus and potassium affecting the cotton yield is K > N > P. Phosphorus is one of the most important factors effecting the cotton boll mumber per plant and the cotton boll weight .The proper amount of N, P2O5 and K2O applying on the Grey Desert Soil is N = 191.07kg/ hm2, P2O5 = 120.00kg/hm2, K2O = 45.27kg/hm2.lt shall obtain the highest yield.Special fertilizer was made according to this proper proportion and the amount of the special fertilizer applying of the highest yield is 840.4kg/hm2.更多还原