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近年来,在蔬菜大棚施放二氧化碳技术的同时,在早春小拱棚韭菜中试验成功并推广了二氧化碳施肥技术。即在早春3月上中旬,韭菜长至3厘米高时即开始施放二氧化碳气肥,连续施放10天左右,韭菜即可收割。施放二氧化碳气肥的,较对照田早收割早上市2～3天,茎粗增加0.075厘米,株高增加3～5厘米,单株叶面积增加0.693平方厘米,百株鲜重增加44.4克,叶色浓绿,品质脆嫩,商品价值高,亩增产393.1公斤,亩增效益600多元,产投比1:10。
In recent years, while applying carbon dioxide technology in greenhouses, we successfully tested and applied carbon dioxide fertilization techniques in early spring small shed leeks. That is early March in mid-March, leeks grow to 3 cm high when the carbon dioxide gas fertilizer began to be applied for 10 days continuous release, leeks can be harvested. Application of carbon dioxide gas fertilizer, early morning harvest than the control field morning 2 to 3 days, stem diameter increased 0.075 cm, plant height increased by 3 to 5 cm, 0.693 cm 2 leaf area per plant increased, fresh weight per plant increased 44.4 grams, leaves Color dark green, crisp quality, high value of the commodity, 393.1 kilograms of mu increase yield, more than 600 acres of benefits, production-to-investment ratio 1:10.