小麦的生长后期进行根外喷施肥料(喷氮、喷磷等),可明显使粒重增加,从而提高单位面积产量。目前生产上已经广泛采用了根外喷肥的增产措施。近三年来,我们参照国内外科研资料在小麦挑旗前后做了喷施“米醋精”的试验。结果证明,小麦生长后期喷施适量的米醋精,不仅能使粒重增加,而且能延长叶片的功能期,增产效果比 In the late growth stage of wheat, spraying fertilizers (nitrogen, phosphorus, etc.) can significantly increase the grain weight and thus increase yield per unit area. The current production has been widely adopted root out of fertilizer stimulation measures. The past three years, we reference domestic and foreign scientific research data before and after the wheat flagpole spray “rice vinegar refined” test. The results show that the late growth stage of wheat spraying the right amount of rice vinegar, not only can increase the grain weight, but also extend the functional period of the leaves, the yield enhancement effect than