温室盆栽黄瓜耗水量与水分利用效率的试验研究

Water Consumption and Water Use Efficiency of Winter spring Cucumber by Pot Culture Experiment in Plastic Greenhouse in China

试验研究表明，从黄瓜移入温室盆内到拉秧，在生育期内，每盆单株黄瓜总耗水量为１１～１９．６ｋｇ，平均耗水１４．９ｋｇ，日耗水量４．３～８．３ｍｍ。每株黄瓜产量０．４～１．３ｋｇ，水分利用效率３８～６６ｇ／ｋｇ株，即每生产１ｋｇ黄瓜需水量１５～２６ｋｇ。经过８３ｄ生育期的灌水，土地盐分的累积十分迅速，土壤盐分平均增加１．１３～１．６７倍，因此必须注意盐分的控制。

Results showed that total water consumption for cucumber growing in pot culture in plastic greenhouse arranged from 11kg to 19.6kg per plant. Fruit yield was 0.4kg to 1.3kg per plant with water use efficiency at 38g to 66g/kg·plant that is to produce kg cucumber, averaged 15kg to 26kg water is needed during the 83 days growing period of the cucumber, which was from transplanting to cutting. Containing salt of soil was increased notably in pot soil. Averaging increase was percent 113 to 167.