Effects of Drip Irrigation with No-tillage on Multiple Sunflower Cropping Soil Water and Yield

The effects of different irrigation and tillage pattern on soil moisture,soil water infiltration capacity,the soil water storage and water use efficiency were investigated in multiple cropping oil sunflower.The treatments included drip irrigation with no-till(DNT),drip irrigated with conventional tillage(DCT),flood irrigation with no-till(FNT) and flood irrigated with conventional tillage(FCT).The results showed that drip irrigation and no-tillage,especially the combined tillage measure improved soil water distribution in the top layer,and decreased field water evaporation than conventional tillage and irrigation,which could lead to an increase in soil moisture and soil water storage in the layer of 0-20 cm.Drip irrigation with no-tillage increased the yield of sunflower by 11.9%,the WUE by 64.2%,and reduced the water consumption by 31.8% than CK.Therefore,drip irrigation with no-till could not only improve irrigation water use efficiency and grain yield,but also improve the sustainable development of agriculture in this region in the long-term.