| 绿洲农田不同施肥方式对冬小麦产量的效应分析 |
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| 引用本文： | 杜雯,唐立松,李彦.绿洲农田不同施肥方式对冬小麦产量的效应分析[J].干旱区资源与环境,2008,22(9). |
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| 作者姓名： | 杜雯 唐立松 李彦 |
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| 作者单位： | 1. 中国科学院新疆生态与地理研究所,乌鲁木齐,830011;中国科学院阜康荒漠生态实验站,阜康,831505;中国科学院研究生院,北京,100049
2. 中国科学院新疆生态与地理研究所,乌鲁木齐,830011;中国科学院阜康荒漠生态实验站,阜康,831505 |
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| 基金项目： | 中国科学院"西部之光"人才培养计划 |
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| 摘 要： | 为了明确如何合理配施有机无机肥,才能提高绿洲农田土壤肥力,本文对土壤养分长期定位实验田种植冬小麦所生长的灰漠土进行了养分及有机质的分析,探讨了N、P、K及其与有机肥的不同配比对冬小麦产量的影响。结果表明:灰漠土中本身K素含量较为丰富,可以满足冬小麦正常生长需要;有机质、N素与冬小麦产量成极显著相关,其含量的增加对冬小麦产量的提高具有极其重要的作用;单施化肥对当季冬小麦产量提高作用明显,但在长期效应上存在不足。故生产上需要将无机肥和有机肥结合施用,才能有效提高土壤肥力,提高和稳定冬小麦产量。
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| 关 键 词： | 长期 施肥方式 绿洲农田 产量 效应分析 |
Effect of Fertilization on Winter Wheat Yield in the Oasis Farmland |
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| DU Wen,TANG Li-song,LI Yan.Effect of Fertilization on Winter Wheat Yield in the Oasis Farmland[J].Journal of Arid Land Resources and Environment,2008,22(9). |
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| Authors: | DU Wen TANG Li-song LI Yan |
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| Abstract: | To clarify how to enhance the oasis farmland soil fertility in virtue of reasonable combined application of organic fertilizer and chemical fertilizer,the nutrient and organic matter of grey desert soil associated with winter wheat were analyzed and the effects of different proportions of nitrogen,phosphorus,potassium fertilizers and organic fertilizer on winter wheat yield were discussed in this paper.It was showed that: the potassium element of grey desert soil is rich enough to meet the need for the normal growth of winter wheat.The extremely positive correlations were observed between organic matters,nitrogen and winter wheat yield,respectively,so winter wheat yield increases when augment their contents to grey desert soil.Although single application of chemical fertilizer could enhance winter wheat yields,its long-term effect is weak.In conclusion,combined application of inorganic fertilizer and organic fertilizer is necessary to enhance the soil fertility and stability the winter wheat yield. |
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| Keywords: | long-term fertilization modes oasis farmland yield the effect analysis |
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