龟背竹叶子发黄的原因:
1、土壤不适
guibeizhuyuanweijishengxingzhiwu,fadadegenxiweirouzhigen,duiturangdeshusongtouqixingyaoqiujiaogao。zhanxingjiweizhanxingtudouhuibutongchengdudiyingxianggenxideshengzhang。ruoturangtouqixingbuhaohuozhangshijianbuhuantu,jiuyoukenenghuiyinqiturangbanjie,yingxiangguibeizhudehuxizuoyong,congershiguibeizhushengzhangbuliang,yepianbianhuang。
jiejuefangfa:jiatingpenzaiguibeizhu,zaipeitukeyongshuhuangtu2fen,fengwomeihui1fen,jifen1fenbanzhidehunhetu。zheiyangjinengbaozhengguibeizhudepenzaiyongtudetouqixinghainengmanzushengzhangsuoxudefeiliaoyaoqiu。
2、浇水过多或过少
shuiduohuiyinqiguibeizhudelangenxianxiang,shuishaohuishizhizhuqueshuiershengzhangbuliang,zheiliangzhongqingkuangdouhuiyinqiguibeizhudehuangyexianxiang。
jiejuefangfa:guibeizhuyaodingqijiaoshui,yicijiaotou,baochipentubiaomianshaoganzao,kongqiganzaoshi,xianghuanjingheguibeizhuyepianshangsashui。
3、光照过强或过暗
guibeizhunaiyin,danshizhangqijiangguibeizhufangzhizaiyinbihuanjingxia,huiyingxiangguanghezuoyong,ershiyepianbianhuang;tongshi,yebunengjiangguibeizhufangzhizaiqiangguangxia,qiangguangzhaoshehuiyinqiguibeizhudeyepianzhuoshangerbianhuang。
jiejuefangfa:guibeizhuzaixiajiyaozhuyizheyin,zuihaojiguibeizhushaixiesansheguang。
4、温度过低
guibeizhudeshengzhangshiwen20~25℃,dongjiyejianwenduyoumiaoqibudiyu10℃,chengshuzhizhuduanshijiankenai5℃,diyu5℃yifashengdonghai,yinqiguibeizhuyepianbianhuang。
jiejuefangfa:dongjixuduiguibeizhudegenbujinxingshidangbaonuan,yizengqiangzhizhudekanghannengli,danbuyaobaguibeizhuzhijiefangzainuanqipianshanghuokongdiaopangbian。
5、施肥过少
tieshizhiwuhechengyelvsusuobixudeyuanliao,ruguoturanghuofeiliaozhongtieyuansubuzu,jiuhuiyingxiangguibeizhuhechengyelvsu,congeryinqiyepianshilvbianhuang。
jiejuefangfa:yinquetieeryinqiyepianfahuang,yingshiyongfanfeishuihuopenshi0.1—0.3%liusuanyatierongye。
6、通风不良
tongfengbuhaoshihuiyinqiguibeizhuyepiandemenhuang。
jiejuefangfa:yaobaochishineitongfenglianghao,yekeyijiangguibeizhubaitianfangshineiguanshang,wanshangbandaoshiwai。
meiliqiteduozideguibeizhushizhumingdeshineipenzaiguanyezhiwu,danpingshiyaozhuyiyanghu,yanghubudanghuichuxianyezifahuangdengwenti,guibeizhuyezifahuangdechangjianyuanyinjijiejuefangfajiujieshaodaozheilile,xiwangduidajiayousuobangzhu。