论文部分内容阅读
蔬菜保护地栽培，尤其是塑料大棚和日光温室面积的增加，不仅可以满足人们对新鲜蔬菜的需求和周年供应，而且单位面积产量明显提高。在人工环境条件下如何进行栽培管理，尤其是蔬菜生长速度比较快，单茬产量较高，复种指数大，因此，必须要有良好的土壤营养。就钾来说，是蔬
Cultivation of vegetables, especially in plastic greenhouses and solar greenhouses, not only meets people’s demand and annual supply of fresh vegetables, but also significantly increases yield per unit area. How to carry out cultivation and management in the artificial environment, especially the rapid growth of vegetables, high yield of single stubble, multiple cropping index, therefore, must have good soil nutrition. In terms of potassium, it is vegetables