底部自吸式灌溉对蔬菜生长和水分利用的影响  

Effect of Bottom Absorbent Irrigation on Growth and Water Use Efficiency by Vegetable

作　　者：王琼[1] 陈青云[1] 

机构地区：[1]中国农业大学农学与生物技术学院,北京100193

出　　处：《北方园艺》2010年第15期190-193,共4页Northern Horticulture

基　　金：国家科技支撑计划资助项目(2008BADA6B03)

摘　　要：使用自制自动吸水灌溉装置,研究自吸灌溉对盆栽番茄生长状况和水分利用的影响。结果表明：自吸灌溉在番茄生长初期能够促进茎粗增加,抑制株高增加;自吸式灌溉下番茄根系在土壤各层分布均匀,中下层土壤中的平均根粗比正常灌溉高8%-10%;自吸式灌溉能够极显著提高叶片叶绿素含量,比正常灌溉高26.5%;使用自吸式灌溉番茄的水分利用效率为60.9kg/m^3比正常灌溉高33%,差异显著。To better understand effect on growth and water use efficiency of tomato by bottom absorbent irrigation,we designed absorbent equipment.The results showed that bottom absorbent irrigation increased stem diameter decreased plant height.Bottom absorbent irrigation made roots well-distributed,increased root diameter and chlorophyll content.Compared with normal irrigation,they improved 8%～10% and 26.5% respectively.In addition,bottom absorbent irrigation obviously increased the water use efficiency,60.9 kg/m^3 compared with normal irrigation,they enhanced 33%.

关 键 词：自动吸水 盆栽番茄 生长 水分利用 

分 类 号：S607.1[农业科学—园艺学]