| 冬春灌条件下棉田水盐对产量的影响研究 |
| |
| 引用本文： | 张永玲,王兴鹏,陈开明,聂慧慧,肖让.冬春灌条件下棉田水盐对产量的影响研究[J].塔里木农垦大学学报,2013(4):18-23. |
| |
| 作者姓名： | 张永玲 王兴鹏 陈开明 聂慧慧 肖让 |
| |
| 作者单位： | 塔里木大学水利与建筑工程学院,新疆阿拉尔843300 |
| |
| 基金项目： | 塔里木大学校长基金青年项目（TDZKQN201102）;新疆生产建设兵团节水灌溉试验项目（兵水发[20121213号）. |
| |
| 摘 要： | 南疆灌区是以棉花为主栽作物的灌溉农业区，土壤普遍含盐量高，且棉花收获至来年春播棉田休闲期长，蒸发返盐明显，采取冬春灌可压盐提墒促进棉花生长发育。然而大定额的冬春灌又使灌区地下水位普遍抬升，土壤次生盐渍化问题日益凸显。为此，本文开展了冬春灌不同灌水定额下棉田水盐变化及其对棉花产量的影响研究。结果表明：各处理生育期灌溉制度相同时，冬春灌总灌溉定额较高的处理，全生育期土壤含水率相对较高；在冬春灌条件下棉田盐分含量呈现以下变化趋势：苗期到蕾期下降，蕾期到花铃期上升，花铃期到吐絮期下降；冬灌2000m。／hm。与春灌1000m’／hm。的组合灌溉定额下增产效果明显，能够确保棉田实现较高产量。
|
| 关 键 词： | 冬春灌 棉田 水盐 产量 |
The Effects of Soil Moisture and Salt Content on the Cotton Yields in the field with Winter and Spring Irrigation |
| |
| Zhang Yongling Wang Xingpeng Chen Kaiming Nie Huihui Xiao Rang.The Effects of Soil Moisture and Salt Content on the Cotton Yields in the field with Winter and Spring Irrigation[J].Journal of Tarim University of Agricultural Reclamation,2013(4):18-23. |
| |
| Authors: | Zhang Yongling Wang Xingpeng Chen Kaiming Nie Huihui Xiao Rang |
| |
| Institution: | Zhang Yongling Wang Xingpeng Chen Kaiming Nie Huihui Xiao Rang＊ (College of Water Resources and Architectural Engineering, Tarim University, Alar, Xinjiang 843300) |
| |
| Abstract: | the South Xinjiang irrigation district is characterized mainly cultivated cotton in the high salinity soil, long fallow period from the harvest to spring sowing in the next year, serious accumulation of salt in the soil surface. Taking the measure of winter and spring irrigation can press salt content and promote the cotton growth and development. But high winter and spring irrigation quota lead to the lifting of ground water level in irrigation area, and increasing of the soil secondary salinization. In this paper the impact on cotton yields were studied with the soil water and salt changes under different winter and spring irrigation quota. The result showed that the soil water content was higher when there was a higher winter and spring irrigation quota. The salt content presented the following trends： Seedling stage to bud stage was declined, bud stage to blooming period was ascend, blooming period to boll period was de- clined. The irrigation quota of 2 000 m3/hm2（winter） and 1 000m3/hm2 （spring） could effectively increase the cotton yields. |
| |
| Keywords: | winter and spring irrigation cotton field water and salt yields |
| 本文献已被 维普 等数据库收录！ |
