干旱区研究2012，Vol.29Issue(3)：393-399,7.
保水剂对河套灌区土壤水分和春小麦生长的影响
Effects of Super Absorbent Polymer on Soil Moisture Content and Spring Wheat Growth in the Hetao Irrigated Area
摘要
Abstract
In order to promote the extension of super absorbent polymer, this paper evaluates some effects of su- per absorbent polymer BJ2101-L, soil structure improver PAM and BJ2101-L ＋ PAM on soil moisture content and spring wheat growth in the Hetao irrigated Area, Inner Mongolia. The soil moisture content under the super absorb- ent polymer treatment was higher than that of the contrast case, especially at fringe-forming stage, and the soil moisture content under the BJ2101-L treatment was increased by 14.26% in soil layer of 0 -80 cm in depth. Super absorbent polymer could be used to improve spring wheat tillering and root growth in deeper soil. The tillering capa- bility of spring wheat under the PAM treatment could be increased by 60.45 % compared with that of contrast case, and the distribution depth of wheat roots under the BJ2101-L treatment could be increased by 70.79%. Biomass and grain yield of spring wheat under BJ2101-L treatment were increased by 27.24% and 30.96% respectively compared with those of contrast case. Water use efficiency, water productivity efficiency and irrigation water productivity efficiency under the BJ2101-L treatment were increased by 20.58% , 24.13% and 31.00% respectively. BJ2101-L treatment could be used to significantly improve the economic returns per unit area, but the PAM treat- ment reduced significantly the economic returns. Super absorbent polymer should be actively applied in spring wheat production in the Hetao Irrigated Area, Inner Mongolia.关键词
保水剂/BJ2101-L/PAM/土壤水分/春小麦/产量/经济效益/河套灌区Key words
super absorbent polymer/BJ2101-L/PAM/soil moisture content/spring wheat/yield/economic returns/Hetao Irrigation Area分类
农业科技引用本文复制引用
白岗栓,张蕊,耿桂俊,杜社妮,于健..保水剂对河套灌区土壤水分和春小麦生长的影响[J].干旱区研究,2012,29(3):393-399,7.基金项目
水利部科技推广计划项目：保水剂技术的推广应用 （）
国家“十二五”科技支撑项目：内蒙古河套灌区粮油作物节水技术集成与示范 （）
