| 姚宝林,施炯林,席琳乔.河西内陆河灌区覆盖免耕的农田水分效应[J].干旱地区农业研究,2007,(1):98~101 |
| 河西内陆河灌区覆盖免耕的农田水分效应 |
| Effects of no-tillage with straw mulch on farmland soil water in Hexi Corridor |
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| DOI：10.7606/j.issn.1000-7601.2007.01.20 |
| 中文关键词: 覆盖免耕 休闲期 储水定额 土壤水分 |
| 英文关键词:No-tillage with straw mulch fallow winter storage irrigation quotas(WSIQ) soil water content |
| 基金项目:国家高技术研究发展计划(863计划)资助项目(2002AA2Z4191)； 甘肃省省长基金项目(RS015-A41-006) |
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| 中文摘要: |
| 对甘肃河西内陆河灌区采用常规耕作、秸秆还田和覆盖免耕技术的农田水分效应进行研究,试验结果表明:在夏季休闲期,覆盖免耕比常规耕作和秸秆还田多贮水30.62 mm和23.91 mm;冬季休闲期可将大定额的储水灌溉减少到975~1350 m3/hm2;覆盖免耕抑制蒸发率在储水定额为975 m3/hm2时达到最大值38.1%,而在2 100 m3/hm2时最小为7.3%;覆盖免耕在作物生育期并没有减少土壤耗水量;各处理产量之间没有显著差异。 |
| 英文摘要: |
| onventional tillage with bare ground(CTB),conventional tillage with straw incorporated(CTS) and no-tillage with straw mulch(NTS) were studied in the Hexi corridor of Gansu provience.The result showed: on summer fallow NTS stored soil water more than CTB and CTS by 30.62 mm and 23.91 mm,respectively;the winter storage irrigation quotas(WSIQ) should be reduced to 900～1 350 m3/hm2 on winter fallow;evaporation controlling rate arrived 38.1% and 7.3% at winter storage irrigation quotas 975 m3/hm2 and 2 100 m3/hm2,respectively;NTS did not reduce ET during the spring wheat growth stage;yields different between treatments was not significant. |
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