| 秸秆覆盖还田对农田土壤蓄水能力及粮食产量的影响 |
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| 引用本文： | 宋晓,李瑜玲,陈莉,赵彦坤,张庆银.秸秆覆盖还田对农田土壤蓄水能力及粮食产量的影响[J].河北农业科学,2014,18(6):42-44. |
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| 作者姓名： | 宋晓 李瑜玲 陈莉 赵彦坤 张庆银 |
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| 作者单位： | 石家庄市农林科学研究院,河北石家庄,050041 |
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| 摘 要： | 为了进一步阐明秸秆覆盖还田的重要性,并为石家庄地区推广小麦和玉米秸秆覆盖还田技术提供理论依据,2011年10月～2013年6月（2个小麦-玉米轮作周期）,以不秸秆覆盖还田为对照（CK）,通过田间定位试验研究了秸秆覆盖还田（小麦秸秆还田量为4 500 kg/hm^2左右,玉米秸秆还田量为7 500 kg/hm^2左右）对农田土壤蓄水能力以及玉米和小麦产量的影响。结果表明：秸秆覆盖还田处理的玉米和小麦农田2 m土体储水量均〉其CK,其中,玉米生长期储水量增幅为2.16%～13.62%,小麦生长期储水量增幅为0.95%～4.50%;单位面积穗数、穗粒重、千粒重和产量均≥其CK,其中,玉米增产9.39%,小麦增产11.70%。秸秆覆盖还田能够提高农田土壤的蓄水保墒能力;改善玉米和小麦的产量构成因素,提高粮食产量。
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| 关 键 词： | 秸秆覆盖还田 土壤储水量 玉米 小麦 产量 |
Effects of Straw Mulching on Soil Water Storage Capacity and Grain Yield of Farmland |
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| SONG Xiao,LI Yu-ling,CHEN Li,ZHAO Yan-kun,ZHANG Qing-yin.Effects of Straw Mulching on Soil Water Storage Capacity and Grain Yield of Farmland[J].Journal of Hebei Agricultural Sciences,2014,18(6):42-44. |
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| Authors: | SONG Xiao LI Yu-ling CHEN Li ZHAO Yan-kun ZHANG Qing-yin |
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| Institution: | (Shijiazhuang Academy of Agriculture and Forestry Sciences, Shijiazhuang 050041, china) |
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| Abstract: | In order to further clarify the importance of straw mulching and provide a theoretical basis for straw mulching technique in Shijiazhuang wheat and corn growing zones,we measured the differences of water storage capacity and the yield of corn and wheat between straw mulching（ the straw returning amounts of wheat and corn respectively were about 4 500 kg / hm^2 and 7 500 kg / hm^2） and none straw mulching treatment（ CK） by field experiment during the two wheat-corn rotation cycle from October 2011 to June 2013.The results showed that the2 m soil water storage volume of straw mulching treatments were higher than that of CK,the water storage capacity increased by 2.16%-13.62% in the corn growing season and 0.95%-4.50% in the wheat growing season.The panicle number per unit area,the grain weight per spike,the thousand grain weight and the yield of treatments were all higher or the same compare with CK.The yields of corn and wheat were increased by 9.39% and 11.70%respectively.In conclusion, straw mulching could enhance the soil water storage capacity, improve the yield components and increase crop production. |
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| Keywords: | Straw mulching Soil water storage Corn Wheat Yield |
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