Study on Growth,Yield and Water Use Efficiency of Summer Maize under Film-furrow Irrigation

Film-furrow irrigation is designed for summer maize irrigation and tested for its growth,yield and water use efficiency.The results show that film-furrow irrigation,on some degree,could reduce the soil evaporation and promote the early growth of summer maize.The time of leaves covering the ground under film-furrow irrigation is early than that under common furrow irrigation.The leaf area climax moves forward and has a long stationary phase.Film-furrow irrigation can reduce water consumption;meanwhile,the water use efficiency can be increased about 18% with no significant difference of yield.Comprehensively considering the factors of yield,water use efficiency,plant height,ear length and 100 grains weight,it can be concluded that film-furrow irrigation is superior than common furrow irrigation.