| 荒漠绿洲不同种植方式对青贮玉米产量及水肥利用效率的影响 |
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| 引用本文： | 解婷婷,苏培玺.荒漠绿洲不同种植方式对青贮玉米产量及水肥利用效率的影响[J].中国农学通报,2010,26(3):249-252. |
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| 作者姓名： | 解婷婷 苏培玺 |
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| 作者单位： | 中国科学院寒区旱区环境与工程研究所,临泽内陆河流域研究站,植物逆境生理生态与生物技术实验室,兰州,730000 |
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| 基金项目： | 中国科学院西部行动计划项目(KZCX2-XB2-04-01;KZCX2-XB2-09-03):国家自然科学基金资助项目 |
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| 摘 要： | 合理的种植方式可以在不增加灌溉耗水量的前提下,利用植物个体间的正相互作用关系和群体适应特点来达到提高作物产量和水分利用效率的目的。通过田间试验,研究了河西走廊黑河中游边缘绿洲区1穴1株、1穴2株和1穴3株种植方式对青贮玉米产量及水肥利用效率的影响。结果表明,1穴2株和1穴3株的地上生物产量均高于1穴1株,1穴2株最高,鲜重为102.9 t/hm~2,比1穴1株提高了29.4%;1穴2株与1穴1株之间存在显著差异(P0.05),1穴3株与1穴1株之间差异不显著(P0.05)。同样,1穴2株和1穴3株的地上生物产量水肥利用效率也均高于1穴1株,1穴2株的水分和氮肥利用效率也均最高,分别为9.3 kg/m~3和342.9 kg/kg;1穴2株与1穴1株之间存在显著差异(P0.05),1穴3株与1穴1株之间差异不显著(P0.05)。在河西走廊边缘绿洲区,采用1穴2株的种植方式能显著提高青贮玉米的地上生物产量和水肥利用效率,可在生产中推广应用。
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| 关 键 词： | 大葱 大葱 紫外辐射 类黄酮 形态指标 |
| 收稿时间： | 2009-09-04 |
| 修稿时间： | 2009-09-11 |
Effect of different planting mode on yield,water use efficiency and fertilizer use efficiency of Silage maize in Oasis |
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| Xie Tingting,Su Peixi.Effect of different planting mode on yield,water use efficiency and fertilizer use efficiency of Silage maize in Oasis[J].Chinese Agricultural Science Bulletin,2010,26(3):249-252. |
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| Authors: | Xie Tingting Su Peixi |
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| Institution: | Xie Tingting,Su Peixi (Linze Inl, River Basin Research Station,Plant Stress Ecophysiology , Biotechnology Laboratory,Cold , Arid Regions Environmental , Engineering Research Institute,CAS,Lanzhou 730000) |
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| Abstract: | The high yield and water use efficiency would be acquired in a reasonable planting mode which utilizing positive mutual relationship among individuals and adapted characteristic in population without increased irrigation amount.Effects of different planting mode on yield and water and fertilizer use efficiencies were studied by field experiment in the marginal oasis regions of northern part of Linze in middle reach of Heihe River Basin.The results showed that:the above-ground biomass yield of two plants in ... |
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| Keywords: | silage maize planting mode biomass yield water use efficiency nitrogen use efficiency |
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