The application of alternate furrow irrigation on open field spring cabbage

The effects of alternate furrow irrigation on open field spring cabbage were studied on soil moisture,plant growth,psychology and water use efficiency,with furrow irrigation and full irrigation control.The results showed:comparing to furrow irrigation,alternate furrow irrigation after revival saved water by 17%,while water use efficiency increased 3.5 kg/m3;alternate furrow irrigation after lotus seat saved water by 8%,while water use efficiency increased 3.4 kg/m3;comparing to full irrigation,furrow irrigation saved water by 17%,while water use efficiency increased 5.0 kg/m3.Comparing to full irrigation,alternate furrow irrigation after lotus seat could increase photosynthetic rate,root length density and total root surface area,reduce transpiration rate,increase econonmic yield by 24%,increase water use efficiency by 8.4 kg/m3,while save water by 23%.What's more,combined with suitable irrigaiton pipe and fertigation equipement,alternate furrow irrigation is a useful and economical way for water saving.