根系通气对温室甜瓜生长特性的影响

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。

Effects of Water and Gas Treatment on Muslmen Plant Growth Characteristics in Greenhouse

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.