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目前大棚蔬菜种植的技术缺陷,主要表现为:化肥农药超量投入、水资源投入量大、有机质投入不足、连续单一种植同一作物等,造成日趋严重的大棚土壤质量恶化,其具体表现为:1.土壤酸化。近年来,我国各地的大棚蔬菜土壤酸化较为普遍和严重。大棚菜地土壤酸化造成的危害,一是会加剧土壤盐基离子的淋失,从而导致土壤;养分流失,造成土壤养分贫瘠,并降低作物品质,同时造成土壤结构,特别是团粒结构破
At present, the technical defects of vegetable cultivation in greenhouse are as follows: excessive investment in chemical fertilizers and pesticides, large input of water resources, insufficient input of organic matter and the continuous monoculture of the same crop all cause serious deterioration of soil quality in greenhouse. The concrete manifestation is as follows: 1 Soil acidification. In recent years, soil acidification of greenhouse vegetables in various parts of our country is more common and serious. Greenhouse vegetable soil acidification caused harm, one will exacerbate the leaching of soil-based salt ions, resulting in soil; nutrient loss, resulting in poor soil nutrients, and reduce crop quality, while causing the soil structure, especially the structure of broken