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| 旱地棉田渗灌补水效应研究 | |
| 引用本文： | 牛西午,冯永平,李永山,张强.旱地棉田渗灌补水效应研究[J].农业工程学报,2001,17(6):44-48. |
| 作者姓名： | 牛西午 冯永平 李永山 张强 |
| 作者单位： | 1. 山西省农业科学院 2. 山西省农业科学院棉花研究所 3. 山西省农业科学院土壤肥料研究所 |
| 基金项目： | 山西省科委“九五”推广项目“果园渗灌补水加秸秆覆盖技术”(961003)部分内容 |
| 摘 要： | 该文着重研究了渗灌不同补水量和渗水管道埋深对旱地土壤含水率和棉花生长发育的影响。试验结果表明，在棉花关键需水期进行渗灌补水，增产增收效果显著。丰水年每次渗水225～300 m3/hm2，皮棉产量可提高196.8～310.7 kg/hm2，增产率为17.3%～27.3%；干旱年份，每次渗水225～300 m3/hm2，比对照增产24.35%～42.55%。与大水漫灌相比，渗灌补水既避免了表层蒸发，又没有形成重力水下渗，大幅度提高了水分利用率。渗水管道埋深在13～20 cm较为合适。 |
| 关 键 词： | 渗灌 旱地棉花 补水 |
| 文章编号： | 1002-6819(2001)06-0044-05 |
| 收稿时间： | 2001/5/10 0:00:00 |
| 修稿时间： | 2001年5月10日 |
Effects of Permeable Irrigation on Cotton in Semiarid Region |
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| Niu Xiwu,Feng Yongping,Li Yongshan and Zhang Qiang.Effects of Permeable Irrigation on Cotton in Semiarid Region[J].Transactions of the Chinese Society of Agricultural Engineering,2001,17(6):44-48. | |
| Authors: | Niu Xiwu Feng Yongping Li Yongshan and Zhang Qiang |
| Abstract: | The experiments were conducted from 1996 to 1997 to study the effects of different permeable irrigation quotas and water pipe depth on soil moisture content, and the growth and yield in semiarid region in Southern Shanxi Province. The results show that lint yield of cotton increased by 17.3%~27.3% with 225~300 m 3/hm 2 of permeable irrigation quota in high annual precipitation and increased by 24.35%~42.55% in low annual precipitation. The depth of water pipe under soil surface were 13 cm to 20 cm, which lint yield of cotton increased by 8.67%~10.92% compared with soil surface permeable irrigation. |
| Keywords: | permeable irrigation cotton in semiarid area economic water quota |
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