水土保持学报2012，Vol.26Issue(1)：232-236,5.
环境功能材料对半干旱地区土壤水肥利用效率的协同效应
Synergistic Effects of Environment Functional Materials to Water ＆ Fertilizer Use Efficiency in Semi-arid Region
摘要
Abstract
With the background of shortage of water,large amount of nitrogen applied,low water fertilizer use efficiency and serious non-point pollution in the semi-arid region of China,field experiment was done with the treatments of different nitrogen fertilizer applying level and various mixtures of three kinds of environment functional material.The aim is to determine the synergistic effects of different materials to water and fertilizer use efficiency.It is showed that：Compared to the experiment plot with the amount of nitrogen fertilizer that applied usually in local region,after 30% of the nitrogen fertilizer reducing,the water and fertilizer use efficiency and the grain yield all increased.In the blank control plot without functional materials applied,water and fertilizer use efficiency increased 56.1% and 27.8%,respectively,and the grain yield and input increase 35.5% and 9 220 Yuan/hm2 showing that the nitrogen fertilizer should be applied with a proper amount to reduce the loss of water and fertilizer and increase yield.Among the treatment plots of various environment functional materials,the mixture of polymer material,adsorptive material,and organic nutritive material played the best effects to water fertilizer use efficiency,which increased the water fertilizer use efficiency 110% and 39%,respectively,and increased the yield and input 47.4% and 9 826 Yuan/hm2,respectively.On the other hand,the effects of the treatments that applied polymer material separately and applied polymer material and adsorptive material simultaneously were not as good as those of the three materials mixed plot and the CK.It indicates that finding optimize of material combination and applying rationally helps to increase water and fertilizer use efficiency,to decrease the agriculture non-plot pollution,and to supply practical basis to the development of multi-functional material.关键词
环境功能材料/水分利用效率/氮肥利用效率/半干旱地区/玉米Key words
environment functional material/water use efficiency/nitrogen use efficiency/semi-arid region/maize分类
农业科技引用本文复制引用
李嘉竹,黄占斌,陈威,王晓茜,黄震,李汉杰..环境功能材料对半干旱地区土壤水肥利用效率的协同效应[J].水土保持学报,2012,26(1):232-236,5.基金项目
国家自然科学基金项目 （）
黄土高原土壤侵蚀与旱地农业国家重点实验室基金 （）
国家“十二五”“863”计划课题 （）
中央高校基本科研业务费专项（研究生科研专项） （）
