开春以后,三麦生长日益旺盛,此时既是营养生长和生殖生长并进的时期,又是分溪向成穗或消亡两极分化的阶段。春管是冬管的继续。这一时期的主攻目标是解决好春发与稳长的矛盾,达到既要发足苗,又不轰过头.在壮苗冬发的基础上,冬发好的要看苗继续促进,达到发足不过头。冬发差的要以春发补冬长。发足以后要稳得住,不落瘦.这样才能提高成穗率,壮秆攻大穗.去年我 After the spring, three wheat grows increasingly strong, this time both vegetative and reproductive growth go hand in hand, but also split into the spike or into the stage of the polarization extinction. Spring tube is the winter pipe to continue. The main target of this period is to solve the contradiction between spring and steady, reaching both full and full bloom, on the basis of strong winter seedlings, winter hair is good depends on continued promotion of seedlings, Not enough head Winter hair poor spring and winter to make winter. After the hair enough to survive, not thin, so as to increase the rate of spike, strong stalk attack big spike last year I