| 滴灌条件下棉花不同生育期N·P配比施肥研究 |
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| 引用本文： | 池静波,杨国江,何江勇.滴灌条件下棉花不同生育期N·P配比施肥研究[J].安徽农业科学,2009,37(28):13586-13588. |
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| 作者姓名： | 池静波 杨国江 何江勇 |
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| 作者单位： | 新疆农垦科学院,新疆石河子,832000;新疆农垦科学院,新疆石河子,832000;新疆农垦科学院,新疆石河子,832000 |
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| 基金项目： | 新疆兵团攻关项目"微滴灌高效固体复合肥的研究与开发" |
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| 摘 要： | 目的]寻求滴灌棉花不同生育期N、P肥配比的最佳施肥方案。方法]在有机质含量较低、肥力中下、有效氮较贫的新疆垦区土壤上，应用6因子2次正交旋转组合设计，研究滴灌条件下随水施肥棉花不同生育期（苗蕾期、花铃前期、花铃后期）养分需求规律、N和P肥的最佳用量。结果]在该试验土壤条件下，棉花各生育期施氮肥对棉花的增产效果非常明显，而磷肥仅在吸收较强的花铃后期表现出一定的增产作用。籽棉产量高于4500kg／hm^2的各生育期N、P配比的优化施肥方案依次是：苗蕾期氮（N2）90．93～97．44kg／hm^2，磷（P2O5）15．53～19．44kg／hm^2；花铃前期氮（N2）163．31～168．08kg／hm^2，磷（P2O5）27．84～30．77kg／hm^2;花铃后期氮（N2）41．37～45．71kg／hm^2，磷（P2O5）66．96～72．65kg／hm^2。结论]该研究为确定棉花滴灌专用肥的配方及科学施用提供依据。
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| 关 键 词： | 棉花 滴灌 生育期 氮磷配比施肥 |
Study on the Ratio of N and P Fertilizers for Cotton in Different Growth Periods under Drip Irrigation Condition |
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| CHI Jing-bo et al.Study on the Ratio of N and P Fertilizers for Cotton in Different Growth Periods under Drip Irrigation Condition[J].Journal of Anhui Agricultural Sciences,2009,37(28):13586-13588. |
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| Authors: | CHI Jing-bo |
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| Institution: | CHI Jing-bo et al(Xinjiang Academy of Agricultural , Reclamation Science,Shihezi,Xinjiang 832000) |
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| Abstract: | Objective]The study aimed to seek for optimum fertilization scheme with different ratio of N and P fertilizers for cotton in different growth period under the drip irrigation condition.Method]On the soil in Xinjiang reclamation area with lower organic content,middle and lower fertility and more poor effective-nitrogen,the 6 factor secondary orthogonal rotation design was applied to study the nutrient need rule and the optimum rate of N and P fertilizers for cotton fertilized along with watering under drip... |
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| Keywords: | Cotton Drip Irrigation Growth period Ratio of N and P fertilizers |
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