保水剂施用方式对土壤水盐及番茄生长的影响  

Effects of super absorbent with different application methods on soil moisture,soil salinity and Lycopersicon esculentum growth

作　　者：耿桂俊[1] 白岗栓[2] 杜社妮[2] 于健 李曼[4] 

机构地区：[1]中国科学院教育部水土保持与生态环境研究中心,陕西杨凌712100 [2]西北农林科技大学水土保持研究所,陕西杨凌712100 [3]内蒙古水利科学研究院,呼和浩特010020 [4]内蒙古农业大学农学院,呼和浩特010020

出　　处：《中国水土保持科学》2011年第3期65-70,共6页Science of Soil and Water Conservation

基　　金：水利部科技推广项目"保水剂技术的推广应用"(TG1144);国家"十一五"科技支撑计划"内蒙古半干旱区粮食作物综合节水技术研究与示范"(2007BAD88B04)

摘　　要：为探讨保水剂不同施用方式的应用效果,在河套灌区,以不施为对照,开展撒施、穴施、沟施和混施BJ2101-L保水剂对土壤水分、盐分和番茄生长影响的田间试验。结果表明:1)沟施、穴施和混施均显著提高0～80 cm土层土壤水分,特别在番茄坐果期较对照提高了12.66%、9.40%和7.50%;2)保水剂可有效抑制土壤盐分的积累,提高番茄幼苗成活率,沟施、穴施、混施和撒施番茄产量较对照提高了37.70%、30.93%、26.35%和12.87%,水分利用效率提高了56.58%、44.98%、32.58%和24.05%。因此,河套灌区番茄生产中保水剂应以沟施为主。In order to determine the effects of BJ2101-L super absorbent with various application methods,field experiments were conducted to investigate their effects on soil moisture,soil salinity and Lycopersicon esculentum growth in Hetao irrigation district,Inner Mongolia.In this paper,BJ2101-L super absorbent was applied with four treatments of furrowing,mixing,holing and broadcasting.The results showed that furrowing,holing,mixing significantly increased soil moisture in 0-80 cm soil layer,particularly there were significant effects during Lycopersicon esculentum fruit-setting stage,and soil moisture in furrowing,mixing and holing treatments increased by 12.66%,9.40% and 7.50% in 0-80 cm soil layer compared to the control respectively.BJ2101-L super absorbent inhibited the accumulation of soil salinity and could improve the survival rate of Lycopersicon esculentum seedlings.The yields in furrowing,mixing,holing and broadcasting treatments increased by 37.70%,30.93%,26.35% and 12.87% compared to the control,and water use efficiency increased by 56.58%,44.98%,32.58% and 24.05% against the control respectively.Optimum application method of BJ2101-L super absorbent should be furrowing application in Hetao irrigation district in Lycopersicon esculentum production.

关 键 词：BJ2101-L保水剂 施用方式 土壤水分 土壤盐分 番茄 

分 类 号：S511[农业科学—作物学]