| 地力与施氮量对超级稻产量、品质及氮素利用率的影响 |
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| 引用本文： | 张军,张洪程,段祥茂,徐宗进,杨波,郭保卫,杜斌,戴其根,许轲,霍中洋,魏海燕.地力与施氮量对超级稻产量、品质及氮素利用率的影响[J].作物学报,2011,37(11):2020-2029. |
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| 作者姓名： | 张军 张洪程 段祥茂 徐宗进 杨波 郭保卫 杜斌 戴其根 许轲 霍中洋 魏海燕 |
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| 作者单位： | 1 扬州大学农学院 / 农业部长江流域稻作技术创新中心，江苏扬州 225009；2 东海县作物栽培技术指导站，江苏东海 222300 |
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| 基金项目： | 国家粮食丰产科技工程项目(2004BA520A03,2004BA520A21); 国家“十一五”科技支撑计划重大项目(2006BAD02A03); 超级稻配套栽培技术开发与技术集成(农业部专项)项目资助 |
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| 摘 要： | 以超级稻中熟中粳徐稻3号为供试材料，研究麦茬田高、中、低3种地力水平下施氮肥(0、148.5、223.5、297.0、372.0、445.5 kg hm-2)对超级稻产量及其构成因素、氮素利用率、稻米品质的影响。结果表明：(1)徐稻3号的产量在不同施氮水平下均表现高地力>中地力>低地力的趋势；高、中、低地力上出现的最高产量对应的最适施氮量分别为260.8 kg hm-2、290.5 kg hm-2、345.5 kg hm-2。(2)氮肥表观利用率与施氮量之间存在显著或极显著的二次相关关系，高、中、低3种地力土壤条件下氮肥最高利用率对应的施氮量分别为268.6 kg hm-2、293.4 kg hm-2、335.2 kg hm-2。(3)培肥地力有利于稻米营养品质、加工品质、蒸煮食味品质的提高，不同地力土壤要施适量氮肥才可以改善稻米的外观品质，优化稻米的营养品质。综合以上超级稻高产、优质、高效的施氮范围，建议该区超级稻施氮范围为高地力田240.0~270.0 kg hm-2，中地力田285.0~315.0 kg hm-2，低地力田330.0~360.0 kg hm-2。
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| 关 键 词： | 超级稻 地力水平 施氮量 产量 品质 氮素利用 |
| 收稿时间： | 2011-01-21 |
Effects of Soil Fertility and Nitrogen Application Rates on Super Rice Yield, Quality, and Nitrogen Use Efficiency |
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| ZHANG Jun,ZHANG Hong-Cheng,DUAN Xiang-Mao,XU Zong-Jin,YANG Bo,GUO Bao-Wei,DU Bin,DAI Qi-Gen,XU Ke,HUO Zhong-Yang, WEI Hai-Yan Innovation Center of Rice Cultivation Technology in Yangtze Valley,Ministry of Agriculture / College of Agronomy,Yangzhou University,Yangzhou ,China, Crop Cultural Station of Donghai County,Donghai.Effects of Soil Fertility and Nitrogen Application Rates on Super Rice Yield, Quality, and Nitrogen Use Efficiency[J].Acta Agronomica Sinica,2011,37(11):2020-2029. |
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| Authors: | ZHANG Jun ZHANG Hong-Cheng DUAN Xiang-Mao XU Zong-Jin YANG Bo GUO Bao-Wei DU Bin DAI Qi-Gen XU Ke HUO Zhong-Yang WEI Hai-Yan Innovation Center of Rice Cultivation Technology in Yangtze Valley Ministry of Agriculture / College of Agronomy Yangzhou University Yangzhou China Crop Cultural Station of Donghai County Donghai |
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| Institution: | 1.Innovation Center of Rice Cultivation Technology in Yangtze Valley, Ministry of Agriculture / College of Agronomy, Yangzhou University, Yangzhou 225009, China;2.Crop Cultural Station, Donghai County, Donghai 222300, China |
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| Abstract: | Xudao 3 is a japonica super rice cultivar widely used in mid-maturing rice production in the North Huai River area. Using this cultivar, the effects of nitrogen (N) application (0, 148.5, 223.5, 297.0, 372.0, and 445.5 kg ha 1) on yield, yield components, grain quality, and N use efficiency were studied under different soil fertility levels. The yield of Xudao 3 in response to soil basic fertility showed the trend of high fertility > medium fertility > low fertility. The optimal N application rates for the ... |
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| Keywords: | Supper rice Fertility level Nitrogen application rate Yield Quality Nitrogen utilization |
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