不同种植模式冬小麦耗水特性及产量试验研究

Research on the Water Consumption Characteristics and the Yield of Winter Wheat under Different Planting Patterns

通过田间试验,研究了2种种植模式（传统平作和垄植沟灌）不同水分处理对冬小麦耗水特性和产量的影响.结果表明：相较于传统平作种植模式,垄植沟灌冬小麦的全生育期耗水量减少26.26～31.92 mm,穗粒数和千粒重分别增加6.09％和3.79％,增产150.57～237.63 kg/hm2,水分利用效率提高9.43％～10.39％;2种种植模式的耗水量和产量与水分处理呈正相关,但随着水分控制下限的提高,水分利用效率则先增大后减小;确定垄植沟灌为冬小麦适宜种植方式,并在L-70水分处理获得了最优的水分利用效率,达到1.91 kg/m3,产量达到7 589.96 kg/hm2.

The field experiments were carried out to study the influences of different water treatments on water consumption and the yield of winter wheat in two different planting patterns （conventional flat planting and ridge tillage furrow irrigation planting）. The results showed that,compared with the conventional flat planting pattern,in ridge tillage furrow irrigation,the water consumption in the whole stages reduced by 26.26～31.92 mm;spike grain number and grain weight grew by 6. 09% and 3. 79%, respectively; the yield increased 150. 57～237. 63 kg/hm2 ;and the water use efficiency （WUE） improved about 9. 43%～10. 39%. The water consumption and yield showed positively correlation with water treatments,but the WUE increased firstly and then decreased as the in-- crease of moisture control limit. The ridge tillage furrow irrigation was determined as the more appropriate planting pattern for winter wheat,and the highest WUE was obtained in L-70 water treatment, which reached 1.91 kg/ma , and the yield reached 7 589. 96 kg/hm2.