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保护地蔬菜栽培,顾名思义就是在不宜于蔬菜生长的寒冷季节或炎热夏季,利用防寒防热设备,人为地创造适合蔬菜生长发育的外界环境条件的栽培方法。由于是在一定容积内栽培大量的植物,土壤中根系密布,要吸收很多养分,因此比露地栽培要求更高的营养条件。有试验表明,每667m~2温室的黄瓜施有机肥高达1万kg,而露地春黄瓜的施肥量只需5000kg就能满足其对养分的需求。 此外,由于保护地栽培的蔬菜往往是在温度
Protected vegetable cultivation, as its name implies, is unfavorable to the growing season of vegetables or hot summer, the use of cold and heat-resistant equipment, artificially create suitable for the growth and development of vegetables outside the environmental conditions of cultivation methods. Because it is in a certain volume of cultivated a large number of plants, the soil is densely rooted, to absorb a lot of nutrients, so than the open field cultivation requires higher nutritional conditions. Experiments show that every 667m ~ 2 greenhouse cucumber organic fertilizer up to 10000kg, while the field of spring cucumber fertilizer only 5000kg to meet their nutrient needs. In addition, since protected cultivated vegetables are often at a temperature