(接上期)水肥管理大花蕙兰栽培的最佳相对湿度是80%~90%,空气湿度太小易造成兰叶枯黄,太大易发生病害。夏季气温达28℃以上时,必须进行人工增湿;干燥的冬天(尤其在供暖期间),室内空气更加干燥,也要注意室内的增湿。大花蕙兰喜水,但不是水分越多越好。水分多时,根系只会在植料表层水平生长,基质上部过于饱和,通气性差,根部易腐烂,根颈处变黑,不生新根,原有根系会发黄、发黑,根尖坏死。若有这种情况应将兰苗取出,在空气 (Connected) Water and fertilizer management Cymbidium cultivation of the best relative humidity is 80% to 90%, air humidity is too small can easily lead to yellowish blue leaves, too easy to disease. When the summer temperature reaches above 28 ℃, artificial humidification must be carried out. In the dry winter (especially during the heating period), the indoor air is drier and indoor humidification is also required. Cymbidium hi water, but not the more water the better. When the water is high, the roots will only grow horizontally on the plant surface, the upper part of the matrix is ​​too saturated, the air permeability is poor, the root is perishable, the root neck is dark, no new roots are formed, and the original root system will turn yellow, black and apical necrosis. If this situation should be removed blue seedlings in the air