| 氮肥运筹对棉花干物质积累、氮素吸收利用和产量的影响 |
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| 引用本文： | 胡国智,张炎,李青军,胡伟,孟凤轩,冯广平.氮肥运筹对棉花干物质积累、氮素吸收利用和产量的影响[J].植物营养与肥料学报,2011,17(2):397-403. |
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| 作者姓名： | 胡国智 张炎 李青军 胡伟 孟凤轩 冯广平 |
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| 作者单位： | 1. 新疆农业科学院土壤肥料与农业节水研究所,乌鲁木齐830091;新疆农业大学草业与资源环境学院,乌鲁木齐830052
2. 新疆农业科学院土壤肥料与农业节水研究所,乌鲁木齐,830091 |
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| 基金项目： | 国家“十一五”科技支撑项目(2008BADA4B09-1); 中国科学院科技支新工程项目; 国际植物营养研究所(IPNI)项目(BFDP-Xinjiang-2009)资助 |
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| 摘 要： | 通过膜下滴灌田间试验，研究不同氮肥运筹模式对棉花干物质积累、氮素吸收利用及产量的影响。结果表明，各处理棉花干物质及氮素积累均符合Logistic方程；棉花干物质积累最快时期出现在出苗后83～139 d。不同的氮肥运筹可明显影响到棉花氮素吸收最大速率及其出现日期，以有机无机氮肥配施（N2+M）处理的氮素吸收最大速率较高，且其出现日期相对较早。棉株对干物质分配中心与氮素吸收分配中心一致。各施氮处理氮肥利用率在32.11%～49.24%之间，N2+M处理氮肥利用率最高，其它处理氮肥利用率随施氮量的增加而降低。本试验中，N2+M处理产量达1890 kg/hm2，显著高于其它处理。
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| 关 键 词： | 氮肥运筹 棉花 氮素吸收 干物质积累 产量 |
| 收稿时间： | 2010-06-22 |
Effect of nitrogen fertilizer management on the dry matter accumulation, N uptake and utilization and yield in cotton |
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| HU Guo-zhi,ZHANG Yan,LI Qing-jun,HU Wei,MEN Feng-xuan,FENG Guang-ping.Effect of nitrogen fertilizer management on the dry matter accumulation, N uptake and utilization and yield in cotton[J].Plant Nutrition and Fertilizer Science,2011,17(2):397-403. |
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| Authors: | HU Guo-zhi ZHANG Yan LI Qing-jun HU Wei MEN Feng-xuan FENG Guang-ping |
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| Institution: | HU Guo-zhi1,2,ZHANG Yan2,LI Qing-jun1,HU Wei1,MEN Feng-xuan1,FENG Guang-ping1(1 Institute of Soil & Fertilizer and Agricultural Water-Saving,Xinjiang Academy of Agricultural Science,Urumqi 830091,China,2 College of Glassland and Environment Sciences,Xinjiang Agricultural University,Urumqi 830052,China) |
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| Abstract: | The effects of different nitrogen fertilizer managements on the accumulation of cotton dry matter,N uptake and utilization and yield were studied under field experiment with drip irrigation.The results showed that the cotton dry matter and nitrogen accumulation fit the Logistic equation.The fastest dry matter accumulation period occurred in 83-139 d after seeding stage.Different managements of nitrogen fertilizer significantly influenced the maximum N uptake rate and present time.Combine application of orga... |
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| Keywords: | nitrogen management cotton nitrogen uptake dry matter accumulation yield |
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