摘要
针对陕西关中灌区面临耕地面积减少和灌溉水资源匮乏的现状,发展节水灌溉已成为必要举措。通过对保水剂施加在塿土中的室内土壤机理变化结果,以及不同作物在施加保水剂的塿土盆栽和大田试验应用效果的分析,可以看出,保水剂施加到关中塿土中,能够增强塿土保水持肥改土的能力,促进作物的生长,改善作物的性状,增加作物的产量,提高作物的品质,有力地缓解关中灌区的耕地压力,提高灌区灌溉水利用效率,减少灌溉水资源的缺口,达到节水增效的目的,从而推动关中灌区农业生产发展,保障区域粮食安全。
Faced with the decrease in arable land and the shortage in irrigation water around the irrigation area of Guanzhong,Shaanxi,it becomes necessary to develop the technology of water-saving irrigation.Through the analysis of water retaining agent effect in the lou soil-based laboratory simulation application combined with the applied test of potted crop and field,it was discovered that the application of water retention agent into the lou soil could enhance the lou soil's ability in water retention,fertilizer reservation and soil improvement,promote the growth and traits of crops,and improve their yield and quality,it can also effectively alleviate the arable land pressure,achieve a high efficiency in irrigation water use,reduce irrigation water gap,thus realize the aim of water-saving and good enhancement,so as to facilitate the development of the agricultural production in Guanzhong irrigation area and guarantee its regional food security.
出处
《安徽农业科学》
CAS
2013年第8期3713-3715,共3页
Journal of Anhui Agricultural Sciences
基金
国家"十二.五"科技支撑计划项目(2011BAD29B01)
陕西省科技计划项目(S2010NY987)
关键词
关中灌区
节水灌溉
保水剂
塿土
农业生产
Guanzhong irrigation area
Water-saving irrigation
Water retaining agent
Lou soil
Agricultural production
