Research On Spring Wheat Ridge With Furrow Irrigation Of Reasonable Technical Parameters In Arid Areas

Field experiment was conducted in Water Conservancy Science Research Institute ofwater-saving agriculture demonstration experimental station in Wuwei GanSu in March-August2013. Based on experimental study and numerical simulation on ridge culture furrow irrigationinfiltration of spring wheat in arid area, field experiments were conducted, Analyzed withaffection on spring wheat growth index and yield and soil moisture dynamic, studied the effectwith irrigation quality and the seepage of irrigation water under the different farming technologyparameter (width of ridge、the depth of ditch、the width of ditch). Studied the ridge culturefurrow irrigation quality evaluation index system. The results showed that:（1）When the ridge width was different,after the irrigation, analysis results of the soilmoisture content with the width of ridge、ridge slope、ditch show that: When the other parameterswere constant, with the increase of the width of ridge, the moisture content of the ridge surface、ridge slope、ditch shows the tendency of decreasing gradually. When the other parameters wereconstant, with the increase of the width of ditch, the moisture content of the ridge surface、ridgeslope、ditch shows the tendency of increasing gradually. When the other parameters wereconstant, with the increase of the depth of ditch, the moisture content of the ridge surface、ridgeslope、ditch shows the tendency of negative increasing gradually. In soils with the same depth,the moisture content of the ditch slightly larger than the ridge surface and ridge slope（2）Under the different farming technology parameter, with the affection on spring wheatgrowth index and yield analyzed results shows: Over various phonological stages of springwheat, with the with the increase of the width of ridge，the plant height、dry matter、leaf areaindex、net photosynthetic rate shows the tendency of decreasing gradually. With the increase ofthe width of ditch, the plant height、dry matter、leaf area index、net photosynthetic rate shows thetendency of increasing gradually. When the other parameters were constant, With the increase ofthe depth of ditch, the plant height、dry matter、leaf area index、net photosynthetic rate shows thetendency of decreasing gradually.（3）Field experiments were undertaken to determine field application efficiency and to compare these values with values simulated by the SRFR software. Results show that the marginof error is reasonable, indicating that the SRSF software is appropriate for analysis of border andfurrow irrigation.Field experiments were undertaken to determine field application efficiency and to comparethese values with values simulated by the SRFR software, the error of the absolute value of theirrigation efficiency AE is8.27%,the error of the absolute value of irrigation uniformity DU issmaller, is6.09%, the results show that the margin of error is reasonable.（4）Under the different farming technology parameter, with the affection on spring wheat yieldand water use efficiency analyzed results shows: With the increase of the depth of ditch, thewheat yields and water use efficiency shows the tendency of decreasing gradually.With the increase of the width of ditch, the wheat yields and water use efficiency shows thetendency of increasing gradually. The T2combination pattern is a more significant effect for thewater storage and soil conservation affected the crop growth and yield formation.