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盆栽花卉叶片变黄是常见的现象,究其原因,大多是由于栽培管理不当所造成,不同原因所引起的黄叶,其症状有一定差异,现分述如下:1.“水黄” 盆土积水久湿,造成土壤缺氧,使部分根系腐烂,因而吸水、吸肥能力减弱,引起花卉新梢顶心萎缩,嫩叶淡黄,老叶也渐呈暗黄。此时应进行松土,控制浇水,停止施肥;也有的由于浇水不足或没有及时浇水,致使叶片蒸发大于根系对水今吸收所引起,但这种黄是从下部叶片逐渐向上变黄脱落或枯焦,而花卉植株新梢顶心和新叶的叶色仍属正常,此时,应及时浇水,并做到“不干不浇,浇必浇透”。
Potted yellow leaves of flowers is a common phenomenon, the reason is mostly due to improper cultivation and management of yellow leaves caused by different causes, the symptoms are some differences are as follows: 1. “Water yellow Pond soil water for a long time wet, resulting in soil hypoxia, so that part of the root decay, so water, reduce the ability to absorb fat, causing the top of the flower apex shrinks, tender leaves yellow, old leaves also gradually dark yellow. At this point should be loosening, control of watering, stop fertilization; also some due to lack of water or not timely watering, resulting in leaf evaporation is greater than the root cause of water absorption, but this yellow is gradually from the lower leaves turn yellow Off or Kujiao, and flower plant shoots the top of the new leaf and the leaf color is still normal, this time, should be timely watering, and to do ”do not do not pour, pouring will be drenched ".