【摘要】 蔬菜营养液育苗能加速蔬菜幼苗生长发育过程,提高幼苗质量,有利于早熟丰产。在营养液或基质中适当增加N P要素,能缩短苗龄,促进花芽分化。蕃茄营养液育苗于基质中增施磷肥,能加速幼苗营养生长,促进花芽分化;黄瓜营养液育苗,幼苗的叶片数、叶面积随着营养液中N P浓度的提高而增加,但NH₄—N含量不能过高,否则花芽分化延迟。更多还原

【Abstract】 Growing seedlings in the nutrient solution is a method to promote the gro wth and development of vegetable crops. It can improve the quality of young seedling, enhance earlymaturing and yield. Properly add more N, P elements n the nutrient solution or solid medium may shorten the seedling stage andpromote the flower bud differentiation of tomato plant. As to cucumber plant, the number and area of leaves will expand along with the increase of N, P concentration in the nutrient solution. But the NH₄—N content should not be overhigh, otherwise the floral initiation will be delayed.更多还原