以"一品甜瓜"为试验材料,采用Φ20蒸发皿的日水面蒸发量为灌溉水量控制指标,设置不同蒸发皿系数(Kp=0.75;1.0)的供水处理;以土壤孔隙率的50%为参照标准,设计1.0和1.5二个加气量系数,探求不同灌水,加气处理对温室甜瓜生长特性等指标的影响。结果表明,从甜瓜的株高、茎粗、地上部分干物质量、根干质量、根冠比、单株产量等综合分析,T3(加气系数1.0,Kp=1.0)处理明显优于其他处理;不同处理下甜瓜叶片的叶绿素含量以T2(加气系数1.5,Kp=0.75)最高,T3次之。综合考虑,T3处理的水气结合灌水模式为推荐的温室甜瓜灌溉模式。
Experimental study on irrigation with the materials of 208 YiPinTianXia muskmelon in greenhouse and take water surface evaporation(Epan) measured by a standard 0.2 m diameter pan used for irrigation control.This study set up different crop-pan coefficient(Kp=0.75,1.0) water treatments and different airjection volume coefficient(1.0,1.5),the reference standard of that is 50% of the soil porosity.This study was conducted to seek the effects on muslmen plant growing variety of indexes under combination of water and gas treatment.The results showed that: through analyzing plant height,stem diameter,dry weight of stem,dry weight of leaf,root dry weight,root/shoot,biomass,fresh weight of melon,the results indicated that T3(1.0 of airjection volume coefficient,Kp=1.0) treatment is significantly better than the other treatment.T2(1.5 of airjection volume coefficient,Kp=0.75) is the highest of chlorophyll content under different treatments,T3 is the next.Comprehensive consideration obtained: The results of T3 under combination of water and gas treatment supplied guidance to greenhouse melon irrigation model with high yield form indicators.