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平山县小麦正常年份在阳历的2月底、3月初返青,3月中旬起身,3月底、4月初小麦开始拔节。一、小麦栽培技术原理1、小麦产量形成的三个阶段从栽培角度看,小麦一生各器官形成的过程及生长发育的特点可以划分为营养生长、营养与生殖生长并进和生殖生长三个阶段。自种子萌发到幼穗开始分化之前,是以生根、长叶、分蘖为中心的营养生长阶段;从幼穗分化到抽穗,一方面继续生长根、叶、蘖和茎秆伸长、充实,另一方面进行穗分化和发育,是营养生长和生殖生长并进
Pingshan County, the normal year of wheat in the Gregorian calendar in late February, early March green, rose in mid-March, the end of March, early April wheat began to join. First, the principle of wheat cultivation technology 1, the three stages of wheat yield formation From the cultivation point of view, the process of wheat organ formation and growth and development can be divided into vegetative growth, nutrition and reproductive growth and reproductive growth in three stages. Before seedling sprout germinates, it is a vegetative growth stage with rooting, long leaves and tillers as its center. From young spikes to heading, on the one hand, it continues to grow roots, leaves, tillers and stalks, Spike differentiation and development on the one hand, is the vegetative and reproductive growth go hand in hand