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一、氮在花卉生长中的作用氮可促进茎、叶的生长(营养生长)。氮肥供应充足时,叶大而鲜绿,光合作用速度高,叶片功能期延长,花卉生长健壮。氮过少,则花卉植株矮小,叶小,色淡,老叶易变黄脱落,节间短,枝条细弱等。但是氮肥也不能过多,过多则会使茎叶徒长,抑制花芽形成,且枝叶柔嫩,
First, the role of nitrogen in flower growth Nitrogen can promote stem and leaf growth (vegetative growth). Adequate supply of nitrogen, large and fresh green leaves, photosynthesis speed, prolonged leaf function, robust flower growth. Nitrogen is too small, the flower plants are short, small leaves, pale, old leaves easily turn yellow, internodes short, thin branches and so on. However, nitrogen can not be too much, too much will make the stems leggy, inhibit the formation of flower buds, and leaves tender,