不同灌水量与灌溉方法对土壤理化性状和木薯生长影响研究  

Effects of different irrigation amounts and methods on physical and chemical properties of soil and growth of cassava

作　　者：单忠英[1] 罗兴录[1,2] 樊吴静[1] 莫凡 

机构地区：[1]广西大学农学院,南宁530005 [2]亚热带农业生物资源保护与利用国家重点实验室,南宁530004 [3]南宁市灌溉试验站,南宁530001

出　　处：《广西水利水电》2015年第1期25-29,共5页Guangxi Water Resources & Hydropower Engineering

基　　金：广西水利厅科技项目:木薯高效节水灌溉技术研究与示范(201413);广科技攻关项目:木薯节水高效智能化微滴灌溉系统研究与示范(桂科攻1222014);南宁市科技攻项目:木薯需水特性与节水灌溉技术研究与示范(20132307);高产优质木薯新品种选育及配套高产高效栽培技术示范推广(201109044B);国家自然科学基金重点项目:广西复合农林生态系统土壤侵蚀过程与预测(U1033004-09);国家现代农业产业体系广西薯类创新团队(nycytxgxcxtd-03-11-2)

摘　　要：以木薯品种"新选048"为材料,进行不同灌水量与灌溉方法对土壤理化性状和木薯生长的影响试验,以探讨木薯苗期最佳的灌水量与灌溉方法。结果表明:同一灌水量下,膜下滴灌的土壤含水量、土壤孔隙度、土壤气相比例、土壤肥力、叶片含水量、株高、茎径都比其它处理高;不同灌水量对改善土壤及木薯生长的影响不同,80m3/亩效果最好。可见,木薯采用灌水量为80 m3/亩的膜下滴灌处理,对改善土壤理化性状,促进木薯生长最有利。In order to study the effects of different irrigation amounts and methods on the physical and chemicalproperties of soil and growth of cassava,and so as to determine the best irrigation amount and method for the seed-ing stage of cassava,experiments were conducted with cassava cultivar of No. Xinxuan 048. The results of experi-ments demonstrate that compared with other irrigation method,with the same water amount,mulched drip irriga-tion renders higher soil water content,porosity,gas phase ratio and soil fertility,leaf water content,plant heightand stem diameter. Different irrigation amounts render different effects on soil and cassava growth,and the amountof 80m^3/mu（15mu=1hectare） renders the best effect. Therefore,mulched drip irrigation with amount of 80m^3/mu isthe best scheme for improving the physical and chemical properties of soil and promoting growth of cassava.

关 键 词：灌水量 灌溉方法 土壤理化性状 木薯 

分 类 号：S274[农业科学—农业水土工程] S533[农业科学—农业工程]