Effect of new irrigation technology on the physiology and water use efficiency of potato by Reclaimed Water Irrigation

文献类型： 外文期刊

第一作者： Qi, Xuebin

作者： Qi, Xuebin;Huang, Zongdong;Qiao, Dongmei;Li, Ping;Zhao, Zhijuan;Fan, Tao;Wu, Haiqing;Fan, Xiangyang;Hu, Chao;Zhu, Donghai;Wang, Xin

作者机构：

关键词： Reclaimed Water;Drip irrigation;water use efficiency;Yield;Soil nitrogen;Root weight density

期刊名称：ADVANCES IN ENVIRONMENTAL TECHNOLOGIES, PTS 1-6

ISSN： 1022-6680

年卷期： 2013 年 726-731 卷

页码：

收录情况： SCI

摘要： Agriculture is a big consumer of fresh water in competition with other sectors of the society. The agricultural sector continues to have a negative impact on the ecological status of the environment. The world's interest in high quality food is increasing. Field experiments were conducted to investigate the effect of subsurface drip irrigation on physiological responses, yield and water use efficiency, Soil nitrogen, Root weight density of potato in the semi-humid region of middle China using subsurface drip irrigation. The experiment used second-stage treated wastewater with and without addition of chloride, and both subsurface drip and furrow irrigations were investigated. Results indicated that the alternate partial root-zone irrigation is a practicable water-saving strategy for potato. The drip with chlorinated and non-chlorinated water improved water use efficiency by 21.48% and 39.1%, respectively, and 44.1% in the furrow irrigation. Partial root zone drying irrigation stimulates potato root growth and enhances root density. The content of the heavy metal in the potato tubers is no more than the National Food Requirements, and it is consistent with National Food Hygiene Stands.

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