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从拔节到孕穗是小麦一生中生长发育最旺盛的时期,需肥多,吸收最大,施好拔节、孕穗肥,满足这一时期的养分供应,是夺取小麦高产的重要一环。施用拔节肥可使较多的光合产物向幼穗辅送,促进小花分化发育,缩小小花之间在发育上的差距,从而增加实粒数,减少秕壳率,同时,还可以巩固分蘖成穗,提高成穗率和穗头整齐度。拔节肥要看苗巧施:对于生长不良的弱苗,群体发育不足,叶片窄小,薄而直立,叶色褪淡发黄等,这类麦苗倒伏的可能性不大,而穗数
From jointing to booting is the most vigorous period of growth and development of wheat in the whole life. It takes more fertilizer and absorbs the most, and good jointing, booting fertilization, to meet the nutrient supply during this period is an important part of the wheat to win high yield. Application of jointing fertilizer can make more photosynthetic products to the young auxiliary, and promote the differentiation of floret development, narrowing the gap in development between florets, thereby increasing the number of solid particles, reducing the husk rate, but also can consolidate the tillering panicle , To increase the ear rate and ear uniformity. Needle joint fertilizer depends on the seedlings Qiao Shi: For the poor growth of weak seedlings, population development deficiencies, narrow leaves, thin and erect, leaf color faded yellow, etc., the possibility of such barley lodging is not, and spikes