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马水桔树叶黄新梢不转绿怎么补救?

dg真人游戏faburiqi: 2017-05-18 06:13

问:
1年树龄马水桔10亩山地种,大约60-70棵,有一半树都有黄叶问题,新长出的叶子未转绿。老叶上年有转绿,今年不转绿。今年五月出现过卷叶,喷过药后就好了。后来就出现一半树黄叶,树身很健康,无虫害病害。附近的果农最近也有此类问题,附近果农果树都是挂过几年果的老树了,怎么补救?

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dg真人游戏5、genjiexianchongweihai。zaiduocipenshiduiyingdeyemianfei,huopenshihanduozhongweiliangyuansudeyemianfei(yong0.004%nongfengsuyuntaisuneizhi60haoshengduishui120jin,bingzaishangshumei120jindeyuntaisuxishiyezhongjiarufuzhisuankangbaohuonongfukangdengyemianfei120haosheng,meiyue10tianpensa1ci,lianxupen3-4ci。yiyuntaisuneizhitigaozhizhudekangninengli,yiyouzhiyemianfeikuaisuduishutibixuyangfendebuchong,yijitigaoguanghechanwudehechengliang)hou,ruguoqingkuangweiyougaishan,zeranhouduigenjiexianchongjinxingpaicha。rushedingyoudaibiaoxingdeshuzhushu,zaishuguandishuixianchudeneiwai,yong18ke/shengaweijunsuruyou3500beiyelingen,zhuyiyaoyenengshenrubiaotuyue30limiyishangdeshendu,yidushagenjiexianchong。tongshiyekeyicidushabaiyidengdixiashigenleihaichong。

6)ruguoyepianchuxianzhenjunxingweihaidebingbanzhengzhuang,keyong70%fu·jialiukeshixingfenjihuo60%duo·fukeshixingfenji800beiye,huo50%lvxiuyiqingniaosuankerongxingfenji1000beiye,jiaotiyongyaopenshi2-3ci。

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