保护地节点渗灌控制上限组合对番茄产量和水分利用效率的影响  

Effects of Upper Irrigation Limit on Tomato Yield and Water Use Efficiency under Node Permeation Irrigation in Protected Field

作　　者：王猛[1] 张玉龙[1] 

机构地区：[1]沈阳农业大学土地与环境学院,辽宁省农业资源与环境重点实验室,辽宁沈阳110866

出　　处：《土壤通报》2013年第4期892-896,共5页Chinese Journal of Soil Science

基　　金：辽宁省重大攻关项目(2008212003)资助

摘　　要：采用保护地番茄栽培小区试验的方法,通过比较灌水量、产量和水分利用效率等指标,对不同灌溉上限组合效果进行了综合评价,研究结果表明,在渗灌管埋深30 cm,灌水控制下限统一设定为土壤水吸力30 kPa时,将保护地番茄生育前期、后期灌水控制上限土壤水吸力值分别控制在18 kPa和12 kPa左右是适宜的。The effect of combination of different upper irrigation limit for tomato in protected field was evaluated comprehensively by comparing the irrigation quantity, yield and water use efficiency, etc. The results showed that when the buried depth of infiltration irrigation pipe was 30 cm and the lower irrigation limit was 30 kPa, the optimal upper irrigation limit for earlier stage of tomato was 18 kPa in soil water suction and 12 kPa at later stage.

关 键 词：节点渗灌 灌水控制上限 番茄产量 水分利用效率 

分 类 号：S152.7[农业科学—土壤学] S274.3[农业科学—农业基础科学]