冬韭扣棚后的管理温度管理。要求扣棚初期至韭高１０厘米前，以增温保温为主，不必放风。以后随着棚温的逐渐升高，陆续适当放风，保持棚温白天１７一２１℃，夜间１２一１５℃，上午当棚温超过２０℃时开始放风，下午棚温降到２０℃时再闭风，往后每刀韭菜的棚温管理照此... Management of winter leek after deduction shed temperature management. Requirements deduction shed to the early leek 10 cm before warming to warm the main, do not have the wind. After the shed temperature gradually increased, one after another proper ventilation, keep the shed temperature during day 17 a 21 ℃, night 12 a 15 ℃, the morning when the shed temperature exceeds 20 ℃ begin to wind the afternoon shed temperature dropped to 20 ℃ closed Wind, the future of each knife leek greenhouse temperature management according to this ...