温、湿度对花卉生长有什么影响?
空气温度和湿度的比例关系对花卉的生长发育有很大的影响,在我国大多数地方,夏季气温高、湿度大,容易造成病虫害的发生和蔓延;冬季气温低、湿度小,气候干燥,不能满足花卉对湿度的要求。
因此,在夏季应保持通风透气,尽量降低空气湿度,以利花卉的生长;而冬季则应增加湿度,以满足花卉对湿度的要求。
原产于亚热带、温带地区的花卉,若气温在1~20%,则湿度应保持在10%~70%;原产热带的许多观叶、观花植物,若气温在20~25℃,则湿度应保持在70%左右,若气温在25~30℃,则湿度应保持在80%~90%。
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