地膜穴播冬小麦播期、密度效应 |
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引用本文: | 马爱萍,池宝亮.地膜穴播冬小麦播期、密度效应[J].山西农业科学,1998,26(3):20-24. |
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作者姓名: | 马爱萍 池宝亮 |
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摘 要: | 1996-1997年,在山西省临汾应用裂区设计法就各小麦地膜穴话的播期、密度进行了研究。结果表明,主因子播期A2(9月28日)与播期A1(9月21日)、播期A3(10月5日)的产量存在5%显著差异;副因子播量4个水平均存在5%显著差异;播期和播量间存在互作效应,以A2(9月28日)B2(297万位/hm2)组合产量最高,达4900.5kg/hm2。同时,对同一播期下、不同播量的土壤耗水规律及子粒灌浆速度进行了研究,为地膜冬小麦合理选择播期、密度提供了理论依据。
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关 键 词: | 冬小麦 地膜穴播 播期 密度 |
A Study on Effects of Sowing Time and Density on Film-mulched and Bunch-Seeded Winter Wheat |
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Abstract: | The effects of sowing time and density on film-mulched and bunch-seeded winter wheatwere studied by using split plot experiment desing during 1996 ~1997 in linfen, Shanxi. The resultsshowed that the sowing date 28 September has significant yield-increasing effect compared with the dates21 September and 5 October, and significant difference exists among the four treatments of sowingdensity. Inteasetion between sowing time and density also exists and the optimal treatment combination,28 September and 2.97 × 106grains/hm2, can be adopted and the yield can reach up to 4 900.5kg/hm2.Comsumption regularies of soil water and grain-filling the were the studied. This study provides thetheoretical basis, on which the sowing time and rate can be selected for further extension of filmmulching and bunch - seeding in wheat growing area. |
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Keywords: | Winter wheat Film-mulching and bunch-seeding Sowing time Density |
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