灌溉方式对大棚黄瓜灌溉水分配和水分生产效率的影响

为了探索北京郊区塑料大棚黄瓜适宜的灌溉方式,以黄瓜中农16为试材,研究不同灌溉方式对春茬塑料大棚黄瓜灌溉水水分分配和水分生产效率的影响.结果表明,在灌溉量相同条件下,与传统灌溉相比,膜上沟灌和膜下沟灌处理深层渗漏量和土壤贮水量增加；耗水量分别降低10.5％和5.9％；产量分别提高8.6％和7.5％,水分生产效率分别提高18.7％和15.4％.塑料灌水带与传统灌溉相比提高产量和水分生产效率,但与膜上沟灌和膜下沟灌相比,产量和水分生产效率均有所降低.因此,在该试验条件下,膜上沟灌和膜下沟灌是京郊塑料大棚黄瓜适宜的灌溉方式.

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.