【作者】 黄占斌； 朱元骏； 李茂松； 祝光富；

【Author】 HUANG Zhan- bin, et al. (China University of Mining and Technology - Beijing , Beijing 100083, China;State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Water and Soil Conversation,CAS&MWR, Shaanxi Yangling 712100,China)

【机构】 中国矿业大学(北京校区)； 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室； 中国农业科学院农业环境与可持续发展所； 广东三九生物降解塑料有限公司；

【摘要】 采用盆栽模拟法对保水剂不同应用法,包括土壤上干下湿(深施)、上湿下干(浅施),单侧干旱(侧施)和不施(对照)等,研究高低两种供水条件下玉米(Zea mays L.)生长和水分利用效率(WUE)。试验结果表明,各种保水剂使用方法对玉米株高都有促进作用,且主要在玉米生长中后期;渐进干旱下能促进玉米根系发育。深施保水剂在充分供水和渐进干旱下较对照提高玉米产量20.6%和74.9%,提高WUE为30.2%和89.0%;浅施和侧施保水剂在渐进干旱下提高玉米产量和WUE分别为41.5%、19.3%和31.1%、35.6%。更多还原

【Abstract】 Pot experiment was made to simulate different using methods of super absorbent polymer, including up dry and down wet( deep using SAP) , up wet and down dry( shallow using SAP) , part wet and part dry( side part using SAP) and control ( no using SAP) , to understand the effect on growth and water use efficiency (WUE) of maize(Zea mays L. ) under high and low water conditions. The results showed that all SAP treatments enhanced maize plant height in mid and late growing stages, and also accelerated root development under low water condition. The yields of maize with deep using SAP treatment were 20. 6% and 74.9% higher than that of control under high and low water conditions, and WUE raised 30.2% and 89.0% respectively. Under low water condition, the yields and WUE of maize with shallow and side part using SAP treatments increased 41.5% , 19.3% and 31.1%, 35.6% respectively.更多还原