开春后,随着气温上升,麦苗迅速生长,特别是春分以后生长发育更快,正如我们常说的“麦过春分昼夜忙”。而小麦后期生长好坏对构成小麦产量三因素(穗数、每穗粒数、千粒重)影响很大。因此,为了巩固小麦前期良好长势,促进后期稳长、秆壮、穗多、穗大、粒多,抓好后期田间管理,对夺取小麦高产丰收十分重要。 After the spring, as the temperature rises, the wheat seedlings grow rapidly, especially after the vernal equinox growth and development more quickly, as we often say, “wheat is too busy day and night.” The late growth and development of wheat on the formation of three factors of wheat yield (spike number, grain number per spike, grain weight) a great influence. Therefore, in order to consolidate the good early wheat growth and promote the latter part of the stable, stalwart, spike, spike, grain and more late grasp of field management, to seize wheat yield is very important.