宁夏引黄灌区早灌头水对春小麦生长发育的影响

Effects of Early Irrigation on the Growth and Development of Spring Wheat in Ningxia Irrigation Area

宁夏引黄灌区头水灌溉较迟,影响了春小麦的幼穗分化和产量。为进一步挖掘宁夏春小麦增产潜力,开展了春小麦早灌头水试验。以宁春50为试验材料,采用单因素完全随机区组设计,分析不同早灌头水处理对春小麦生长发育的影响。结果显示,早灌头水延长了小麦生育期,促进了分蘖,增加了穗数,但对小麦株高无影响。此外,早灌头水对小麦单株叶面积有影响,其中4月2日灌水处理的小麦叶面积较大。

Water irrigation in Ningxia Irrigation Area was relatively late,which affected the ear differentiation and yield of spring wheat.In order to improve the yield of spring wheat,we carried out the water irrigation test.With Ningchun 50 as the test material,single factor completely random block group design was adopted to research the effects of different water irrigation dates on the growth and development of spring wheat.Results showed that early water irrigation could extend the growth period of wheat,promote the tillering,and enhance the ear number,but showed no impacts in plant height of wheat.Besides,early irrigation showed certain impacts on leaf area per plant,and the treatment of irrigation on March 2rd showed relatively great leaf area.