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根据1986年～87年度福繁16在我县试验示范栽培经验和有关生育动态数据,综合分析了生育动态和主要栽培要素,为进一步提高小麦单产,增加总产提供科学数据。一、生育动态:全生育期(播种至成熟)123至125天,大于或等于D℃的活动积温为1913.4℃至1970.3℃;叶面积系数在孕穗期为最大,亩产500～600斤的小麦田在孕穗期叶面积系数为4.5～6.97,任何一个生育期,群体叶面积过大过小,对生产都有不利影响,不同的生产水平,应有不同的适宜叶面积。福繁16一生叶片数平均为9叶左右,拨节时分蘖达到最高峰,孕穗期中等分蘖陆
According to the experiment demonstration cultivation experience and relevant fertility data in Fuxian 16 from 1986 to 1987, we comprehensively analyzed the fertility dynamics and major cultivation elements, and provided scientific data for further improving wheat yield and increasing total output. First, the fertility dynamics: The whole growth period (sowing to maturity) 123 to 125 days, greater than or equal to D ℃ activity accumulated temperature 1913.4 ℃ to 1970.3 ℃; leaf area coefficient at booting stage is the largest, 500 to 600 kg per mu The leaf area coefficient of wheat field at booting stage is 4.5 ~ 6.97. Any one growth period, group leaf area is too large and too small, have an adverse impact on the production, different production levels, there should be different suitable leaf area. Fu Fan 16 leaves an average of about 9 leaves, dial tillers to reach the peak, the billet booting at the booting stage