莜麦花稍发生率及对产量的影响

Occuerence Rate of Avenanuda Twig and its Influence on Yield

通过莜麦的播期、播量、灌溉和施肥试验研究,结果表明:莜麦花稍率及产量与上述因素密切相关。夏莜麦区3月26日播种、播量105kg/hm2、3～4叶期第一次灌溉,5～6叶期第二次灌溉、增施N肥和P肥做基肥,都会有效降低花稍率,提高产量。

Experiment shows that the four factors of sowing date,sowing quantity,irrigation and fertilizer are closely related to incidence of Avenanuda,sterile spikerlets and yield.In the summer areas of naked oats sowed,seedtime is on March 6,sow volume is 105kg per hectare and the first irrigation is in the 3-4 leaf stage;The second irrigation is in the 5-6 leaf stage and application of nitrogen and phosphate are increased at the same time.Above-mentioned measures can effectively reduce sterile spikerlets,incidence rates and improve Avenanuda,production greatly.