Effect of Different Irrigation and Tillage Patterns on Soil Physical Properties and Yield in Multiple Cropping Oil Sunflower

Field experiments were conducted to study the changes of soil compaction,soil bulk density,the field capacity and yield in multiple cropping oil sunflower under the treatments including drip irrigation with no-till(DNT),drip irrigation with conventional tillage(DCT),flood irrigation with no-till(FNT)and flood irrigation with conventional tillage(FCT).The results showed that the treatment of no-till had a little impact on soil physical properties,which could lead to increase in soil compaction and soil bulk density in the layer of 0～20cm.However,field capacity under drip irrigation was higher than that under flood irrigation.In short,the drip irrigation with no-till treatments could improve the soil physical properties and enhance soil infiltration capacity.Drip irrigation with no-till could increase WUEand the yield by 49.1% and 11.9% respectively.This sowing technology can be used in upstate Xinjiang area and similar region.