喷雾对花卉生长有什么好处?
喷雾对花卉生长有什么好处?喷雾可以增加空气和地面的湿度、降低气温、洗去植株表面的灰尘并可以冲掉害虫、避免植株嫩叶焦枯和花朵早谢、保持植株清新。夏季经常进行叶面喷水,对一些喜阴湿的花卉如棕竹、蒲葵、散尾葵、山茶、杜鹃、兰花等的生长发育是很有好处的。
如上海地区夏季高温酷暑,气温常达到34℃,且连续高温,不利于喜阴湿、需要在荫蔽下越夏的花木生长,养护时应经常向地面及植株喷水或喷雾,使这些花木安全度夏。
喷水量的多少可根据花卉具体需要而定,一般以喷水后不久即蒸发掉为宜。幼苗和娇嫩的花卉需经常喷水喷雾,热带观叶植物、天南星科及凤梨科花卉在炎热的夏天更要做好喷水和喷雾工作,但有些花卉对水分很敏感,如大岩桐、蒲包花、仙人掌类等,植株叶面有较多绒毛,喷水后植株沾水后不易蒸发,易造成叶片发黑腐烂,故不宜喷水。对于开花的植株,也不宜多喷,否则花朵霉烂或影响结果。
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