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1.增加氮肥即可增加大麻植株的高度、直径、分枝数目、分枝长度和叶的面积,同一处理,雌麻较雄麻为显著。雄株小叶的长/宽此均大于雌株,即雄株的小叶较细长,雌株的小叶较宽短。2.无论施用无机氮肥或无机氮肥与堆肥合施,均有一致的趋向,即施氮量愈多,雌株百分数愈高,而雄株百分数则愈低。3.大麻幼小时含氮量较少,以后含氮量随生长和发育而逐渐增加,至开花前达到最高点,开花期则又减少。在开花以前雌株的含氮量高于雄株,雌株开始结实时,其含氮量则小于雄株。
1. Increase in nitrogen fertilizer can increase the height of cannabis plants, diameter, number of branches, branch length and leaf area, the same treatment, hemp is more significant than that of hemp. The length of the male plantlets is wider than the female plantlets, ie, the male plantlets are slender and the female plantlets are shorter. No matter applying inorganic nitrogen fertilizer or inorganic nitrogen fertilizer in combination with compost, there is a consistent trend that the more nitrogen application, the higher the female plant percentage, the lower the male plant percentage. 3. When young, the content of nitrogen is small, and the nitrogen content increases with growth and development later, reaching the highest point before flowering and decreasing at flowering stage. Before flowering, the nitrogen content of female plants was higher than that of male plants. When the female plants began to bear fruit, the nitrogen content of female plants was smaller than that of male plants.