| 黄土区长期施肥对小麦产量和养分吸收的影响 |
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| 引用本文： | 杨晓,郝明德,李芳林.黄土区长期施肥对小麦产量和养分吸收的影响[J].土壤通报,2010(1). |
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| 作者姓名： | 杨晓 郝明德 李芳林 |
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| 作者单位： | 西北农林科技大学资源环境学院;中国科学院水利部水土保持研究所; |
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| 基金项目： | 中国科学院知识创新工程重要方向项目(KZCX2-YW-424-3); 国家科技支撑计划(2006BAD15B01-02;2006BAD05B07)资助 |
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| 摘 要： | 在长期定位试验基础上研究了施肥对小麦产量和养分吸收的影响。结果表明,合理的肥料配施不但可以大幅度增产,还可提高肥料的肥效,促进作物生长发育,增加小麦体内氮磷钾养分的积累。单施N和M肥料的增产作用不明显,单施P小麦减产38%,NP配施或氮磷肥与有机肥配施小麦产量显著提高,以NPM处理的小麦最高,为5980.0kghm-2,比对照增产4436kghm-2,增幅287.31%。肥料间以氮磷肥的交互作用最明显,连应值最高,为3859.5kghm-2;氮磷肥配施还可明显提高氮肥和磷肥的肥效,但有机肥肥效则以NM配施最高。小麦的综合长势以NM配施最好,株高略低于NPM配施,穗长、穗粒数、千粒重均有所增加;氮磷养分吸收总量以NPM配施为最高,钾养分吸收总量则以NM配施最高;氮收获指数以NM配施最高,为77%,磷收获指数以NP配施最高,为87%,钾收获指数以NP和NPM配施最高,为16%。
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| 关 键 词： | 小麦产量 生育性状 收获指数 长期施肥 |
Effect of Long-term Fertilization on Wheat Yield and Nutrients Absorption in Loess Plateau |
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| YANG Xiao ,HAO Ming-de ,LI Fang-lin.Effect of Long-term Fertilization on Wheat Yield and Nutrients Absorption in Loess Plateau[J].Chinese Journal of Soil Science,2010(1). |
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| Authors: | YANG Xiao HAO Ming-de LI Fang-lin |
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| Institution: | YANG Xiao 1,HAO Ming-de 2,LI Fang-lin 1 (1.College of Natural resource , Environment,Northwest A&F University,Yangling 712100,China,2.Institute of Soil , Water Conservation,Chinese Academy of Sciences , Ministry of Water Resources,China) |
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| Abstract: | This experiment was carried out to study th e effect of long-term fertilization on wheat yield and nutrients absorption based on the long term fertilization experiment.The results showed that rational combination of chemical fertilizers and the manure or the chemical fertilizer treatments had a better effect on the wheat yield,increased the efficiency of fertilizers,promote the growth of the wheat,increase the absorption of nutrient.There was a low increased in the single N and P treatment compared to the c... |
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| Keywords: | Wheat Yield Growth characteristic Harvest Index Long-term fertilization |
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