发财树黄叶是怎么回事？

youwangyouwen：facaishurongyihuangyeshizenmehuishi？weishenmemeicigouhuidefacaishuguobuleduojiuyepianjiuyoufahuangdexianxiang，meiyouxinmaidelvni？

 1、facaishuyepianfahuangzuizhuyaodeshiquedanfei；zaishengchanchangdongjishiwomendoushiyi0.2%shihuaduoduode8haofeiliao，dan：lin：jia=20:10:20，shidenongdujiaodi，yinweidongjifacaishudegenshengzhangjiaoman，genyebufada，shifeidenongdubuyitaigao；suoyi，guoleyiduanshijian，ruomeiyoujixubuchongfeiliao，yepianjiuhuiyoufahuangdexianxiang。 2、xianzaiyouyutianqijiaoyanre，womenfacaishushengzhangsudujiaokuai，bingqiegenjushichangdefanying，womenyicaiqulecuoshi：shifeinongduzengjiadaole0.4%，bingqiechuhuoshi，nenyebuchuhuo，yidingdaidaoyepianwanquanchengshushicaichuhuo。woxiangjinhouyinggaibuhuichuzheizhongqingkuang。