【摘要】 采用对比试验设计方法,研究了小麦穗期叶面喷施萌帮水溶性肥料〔375、750和1 500 g/(hm2.次)〕与喷施磷酸二氢钾〔750和1500 g/(hm2.次),CK〕对小麦产量的影响,旨为验明小麦穗期用萌帮水溶性肥料替代磷酸二氢钾进行叶面喷施的效果。结果表明:相同用量条件下,喷施萌帮水溶性肥料的小麦产量与喷施磷酸二氢钾相当,其中萌帮水溶性肥料施用量为1500 g/(hm2.次)、连喷2次的产投比最大(4.87)。在小麦穗期进行"一喷三防"时完全可以用萌帮水溶性肥料代替磷酸二氢钾,以施用量1500 g/(hm2.次)、连喷2次为宜。更多还原

【Abstract】 The effects of foliar spraying Mengbang water soluble fertilizer(375,750,1 500 g/(hm2·time))and potassium dihydrogen phosphate(750 and 1 500 g/(hm2·time),CK)on the yield of wheat were studied by contrast experiment design method in order to identify the effect of foliar spraying water soluble fertilizer instead of potassium dihydrogen phosphate in wheat earing stage.The results showed that under the condition of the same amount,there was no significant differences in yield of foliar spraying Mengbang water soluble fertilizer and potassium dihydrogen phosphate,and the ratio of output to input was maximum when foliar spraying 1 500 g/(hm2·time)of Mengbang water soluble fertilizer continuously twice.Therefore,foliar spraying 1 500 g/(hm2·time)of Mengbang water soluble fertilizer continuously twice instead of potassium dihydrogen phosphate in wheat earing stage was feasible.更多还原