大棚蔬菜如何进行根外追肥根外追肥就是将个别肥料加水稀释后喷洒在植物叶子表面，通过叶部吸收，达到增产的目的，这种施肥方法称为根外追肥。实践证明，根外追肥对蔬菜早收、防止早衰、延长供应期，提高产量有明显效果。黄瓜、番茄、茄子、辣椒、菠菜等蔬菜均可进行根外... Greenhouse vegetable how to carry out root top dressing fertilizer is the root of the individual fertilizer diluted with water after spraying on the plant leaf surface, absorbed through the leaf to achieve the purpose of increasing production, this fertilizer is called top dressing. Practice has proved that root top dressing on vegetables early harvest, to prevent premature aging, extend the supply period, increase production have obvious effects. Cucumber, tomato, eggplant, peppers, spinach and other vegetables can be root ...