| 谭凯敏，杨长刚，柴守玺，常 磊，程宏波，黄彩霞，王燕培.秸秆还田后覆膜镇压对旱地冬小麦土壤温度和产量的影响[J].干旱地区农业研究,2015,33(1):159~164 |
| 秸秆还田后覆膜镇压对旱地冬小麦土壤温度和产量的影响 |
| Effect of mulching film after straw returning on soil temperature and grain yield of dryland winter wheat |
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| DOI：10.16302/j.cnki.1000-7601.2015.01.026 |
| 中文关键词: 秸秆还田 覆膜 镇压 旱地 冬小麦 土壤温度 产量 |
| 英文关键词:straw returning mulching film rolling dryland winter wheat soil temperature grain yield |
| 基金项目:现代农业产业技术体系建设专项资金(CARS-3-2-49)；公益性行业(农业)科研专项（201303104） |
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| 中文摘要: |
| 在黄土高原雨养条件下，研究了玉米秸秆还田+全膜覆土穴播+播前镇压（T1），玉米秸秆还田+不覆膜+播前镇压（T2），玉米秸秆还田+不覆膜+播前不镇压（T3），小麦秸秆还田+全膜覆土+播前镇压（T4），小麦秸秆还田+不覆膜+播前镇压（T5），小麦秸秆还田+不覆膜+播前不镇压（T6），露地穴播（CK）对冬小麦土壤温度和产量的影响。结果表明： 各处理全生育期0～25 cm土层均温依次为T4(15.26℃)＞T1(14.94℃)＞T5(14.80℃)＞CK(14.66℃)＞T3(14.64℃)＞T2(14.57℃)＞T6(14.47℃)； 还田方式间比较，秸秆还田+全膜覆土穴播+播前镇压、秸秆还田+不覆膜+播前镇压处理在整个生育期表现为增温效应，秸秆还田+不覆膜+播前不镇压表现为降温效应； 小麦秸秆还田增温效果大于玉米秸秆还田； 各还田处理均表现为增产效应，平均较CK增产69.36%、27.94%、19.38%、45.12%、13.30%、9.79％。 |
| 英文摘要: |
| The study were conducted investigate the effect of mulching film after straw returning on soil temperature and grain yield under rainfed condition in Loess Plateau of northwestern China. Seven treatments were conducted: maize straw returning + whole mulching film + rolling pre-sowing (T1), maize straw returning + rolling pre-sowing (T2), maize straw returning(T3), wheat straw returning + whole mulching film + rolling pre-sowing (T4), wheat straw returning + rolling pre-sowing (T5), wheat straw returning(T6) and open field dibble(CK). The average temperature at soil layer of 0～25 cm during whole growth period were in the order of T4(15.26℃)＞T1(14.94℃)＞T5(14.80℃)＞CK(14.66℃)＞T3(14.64℃)＞T2(14.57℃)＞T6(14.47℃). The temperature increased in treatments of straw returning + whole mulching film + rolling pre-sowing and straw returning + rolling pre-sowing, while temperature decreased in straw returning treatment. The warming effect of wheat straw returning was higher than that of the maize straw returning. Significant increase in grain yield existed among the six treatments, being 69.36%, 27.94%, 19.38%, 45.12%, 13.30% and 9.79% higher than that of CK, respectively. |
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