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实践表明,蔬菜水培生产具有 产量高(比土壤种植产量高5～12 倍,比西红柿高20倍)、早熟(提早 5～15天)、省水(节水3～6倍)、病害 轻、无污染等特点。而且每生产1公斤蔬菜所用的营养液成本只需要几分钱,城市居民也可利用阳台、屋顶无土栽培蔬菜。现介绍几种蔬菜和西瓜的无土栽培方法,供参考。 番茄无土栽培 1.用直径20～30厘米,高35～45厘米的瓦盆、木槽或塑料袋,下部装10～15厘米厚的卵石块,上部装河沙,然后用清水冲洗几遍,以防河沙带菌。 2.选择无病虫危害,将现蕾或已显蕾的健壮番茄苗,栽插到河沙中,用小竹竿或木条固牢。植株只留一个主茎,留2～3层果即可。
Practice shows that the hydroponic culture has the advantages of high yield (5 ~ 12 times higher than the soil, 20 times higher than the tomato), precocious (5 ~ 15 days earlier), water saving (saving 3 ~ 6 times) , No pollution and so on. Moreover, the cost of nutrient solution used for producing 1 kilogram of vegetables only cost a few cents. Urban residents can also use balconies and soilless cultivation vegetables on the roof. Now introduce several kinds of vegetables and watermelon soilless cultivation methods for reference. Tomato soilless culture 1. With a diameter of 20 to 30 cm, height 35 to 45 cm tile basin, wooden trough or plastic bag, the lower part of 10 to 15 cm thick pebbles, the upper part of the installation of river sand, and then rinse with water several Times to prevent river sand fungus. 2. Choose harm-free pests and diseases, the bud will have budding or budding robust, planted into the sand, with small bamboo sticks or solid wood. Leave only one main stem plant, leaving 2 to 3 layers of fruit can be.