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(二)盖棚后的日常管理盖棚后瓜叶菊的生长发育完全在大棚内的小气候下进行。但大棚内的小气候极不稳定。和外界相比,温度可相差30℃以上,湿度和光照可相差2倍,二氧化碳浓度可相差4倍。不但不同天气条件下有差别,就是同一天的不同时间也可能有很大差别,这与瓜叶菊生长发育所需的理想环境条件:最适温度18～22℃,最高生长适温25℃,最低忍耐温度0℃,最佳空气湿度75～80％,最适光照强度20000～30000勒克斯,相差很多。因此,作为调节大棚内温度、湿度、二
(B) cover after the day-to-day management of shed after shed growth and development of cineraria completely in the microclimate within the greenhouse. But the microclimate in the shed is extremely unstable. Compared with the outside world, the temperature can be more than 30 ℃, humidity and light can be a difference of 2 times, a difference of 4 times the concentration of carbon dioxide. Not only different under different weather conditions, that is, the same day different time may also be very different, with the growth and development of cineraria ideal environmental conditions required: the optimum temperature of 18 ~ 22 ℃, the highest growth temperature of 25 ℃, the lowest Endurance temperature 0 ℃, the best air humidity 75 ~ 80%, the optimum light intensity 20000 ~ 30000 lux, a lot of difference. Therefore, as a regulation of greenhouse temperature, humidity, two