Effects of Different Irrigation Methods on Water Distribution and Water Use Efficiency of Cucumber in Plastic Greenhouse

In order to explore the appropriate irrigation methods of cucumber grown in plastic greenhouse of suburbs of Beijing,Zhongnong No.16(Cucumis sativus L) was used as experimental material to study the effects of different irrigation methods on water distribution and water use efficiency of cucumber grown in plastic greenhouse in spring.The results revealed that water drainage amount and soil water storage in the treatments of the furrow irrigation under mulching and furrow irrigation above mulching were higher than in the traditional furrow irrigation treatment;the water consumption of the furrow irrigation under mulching and furrow irrigation above mulching decreased by 10.5% and 5.9% respectively;water use efficiency increased by 18.7% and 15.4% respectively,compared with traditional furrow irrigation.The plastic irrigation tape increased the yield and water use efficiency compared with traditional furrow irrigation,but lower than the furrow irrigation under mulching and furrow irrigation above mulching.Therefore,under the conditions of this experiment,the furrow irrigation under mulching and furrow irrigation above mulching are the appropriate irrigation methods for cucumber in plastic greenhouse.