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大棚花卉生产的几个管理误区

   2014-10-27 794
核心提示:大棚花卉生产具有不由外界环境干扰、育苗周期短、生长快等优点,因此被大规模推广和使用。目前大棚花卉生产以成为花卉生产的主要方式之一。但是,通过笔记走访调查发现,有不少大棚花卉生产的管理存在以下几个误区。

dapenghuahuishengchanjuyoubuyouwaijiehuanjingganrao、yumiaozhouqiduan、shengzhangkuaidengyoudian,yincibeidaguimotuiguangheshiyong。muqiandapenghuahuishengchanyichengweihuahuishengchandezhuyaofangshizhiyi。danshi,tongguobijizoufangdiaochafaxian,youbushaodapenghuahuishengchandeguanlicunzaiyixiajigewuqu。

 

wuquyi:yicixingshifeiguodu

yicishifeiguoduo,shiturangrongyenongduzengda,huahuifashengfanshen、shanggenxianxiang;pianshihuaxuefeiliao,youqishipianshidan、linfei,zaochenghuahuiyingyangbilishidiao。

 

正确施肥方法为:注意调控基肥和追肥的比例,一次施肥量不要过大,应施足基肥、适当追肥;多增施有机肥,因为有机肥既可改善土壤结构,又可使肥效稳步缓慢释放,还可调节土壤的酸碱度;要穴施或条施,深度应在5厘米以上,并与花卉根部保持10厘米左右的距离;巧用高浓度、全元素复合肥或微生物复合肥,则溶解率、吸收利用率都很高,可适于滴灌、喷灌及叶面喷施,且性能稳定。

 

误区二:密度过大

henduohuanongrenweimiduguoxiyingxiangchanliang,wangwangzaihuahuiliumiaoshishebudequmiao,renweizhiyoumizhicainenggaochan。qishi,zaizhimiduhelicaiyouliyuhuahuishengzhang,guodumizhifanerbuliyutigaochanliang,haiyingxiangpinzhihejingjixiaoyidetigao。

 

zhengquezuofawei:quedingzaizhimidu,yaoconghuahuipinzhong、turangzhuangkuang、qihoutiaojianhezaipeijishudengfangmianjinxingkaolv,yihelixizhiweiyuanze。aihuaduanzhixingdemubenhuahuihecaobenhuahui,shenhoueryoufeiwodeturangzhuangkuang,guangreshuitiaojianjiaohaodexiaqiujijie,jiaogaodepengshizaipeiguanlijishushuiping,zaishangshuqingkuangxiakeyishidangmixie。weilechongfenliyongpengshikongjian,kecaiquqianqimizhi、zhongqishuzhu、houqishuzhideguanlibanfa,yizhiyebuyongjiweizhun,laitigaohuahuidezongtichanlianghezonghexiaoyi。

 

误区三:温度过高

不少花农认为建棚室就是为了增温保温,温度高了,花卉就会生长得快。其实,花卉对温度有上限要求,一般为20℃至25℃,少数为25℃至30℃。若超过30℃,则花卉的呼吸作用大,会造成植株徒长,枝叶和花果的生长不平衡,效益反而会下降。

 

zhengquezuofawei:zaipengshishezhifangfengkou,jishikaibidiaojiewendu;yangeanzhaobutongzhongleidehuahuishengzhangqisuoxuwendudeyaoqiu,yijigegeqiguanshengzhangqiduiwendudeteshuyaoqiulaijinxingguanli,fangzhiwenduguogaozhiyetuzhanghehuaguoshengzhangbuliangyingxiangzhengzhuzhiliang。yaobadiaojiepengshidewenduhejiejuetongfenghuanqimiqiejieheqilai,yifangzhipengshineiwendujiaogao、shidujiaoda,yizishengbingchonghaiwenti,hetongfenghuanqibulianghuizaochengyouhaiqitidefashengheweihaiwenti。

 

误区四长势过旺

daduoshurenrenweihuahuizhimanwangcaishihao,yushijiuduojiaoshui、duoshifei,yicujinhuahuideshengzhang。shubuzhi,shuiduofeiduozhiyewangsheng,yekenengzaochenggenqianganruo、yingyangbuquanmian。zhangshiguowang,shiyingyangshengzhangqiangduguoda,shibiyingxiangshengzhishengzhangqiangdu,zhengtichanliangbujiandesheng,zhengtizhiliangfanerhuijiang。

 

正确做法为:一是要在花卉幼苗期为根系良好生长打下基础,并控水控肥控株,使地下部分吸收光合产物占一多半,花卉生长的中后期,地下和地上部分吸收量各占一半左右。二是前期株体消耗营养量占60%左右,生殖生长占40%左右;中期各占50%左右;后期生殖生长占60%至70%,营养生长占30%至40%,即保证前期有一定的同化叶面积,后期要控叶促果壮株,以提高产量和效益。

 

误区五打药过勤

henduohuanongzaihuahuishengzhangzhonghouqi,meigejitianjiudanongyao,renweinongyaodadeqin,jiukeyifangzhibingchongzacaozishengmanyan,shijijieguoquebingfeiruci。shachongji、shajunjishiyongguopin,bingchonghaijiuhuichanshengkangyaoxing,xuyaojiadayaoliang,rongyichanshengyaohai、bingchongzaichangjuehehuanjingwuranwenti,zaochengexingxunhuan。

 

zhengquezuofawei:yishiduizhengxiayao,xuanyongjinengshabingchong、youyouliyuhuahuishengzhangdeyaowu;ershigaiyonggaoxiaodidudenongyao,bingqiejinliangjiangdishiyongnongdu,yimianchanshengyaohai;sanshigaishan、youhuapengshideshengtaihuanjing,cushihuahuijiankangshengzhang,yitigaokangxing;sishibuzaigaowen、gaoshitiaojianxiapenyao,zhuyihelihunyong,bimianyaoyedezhengfaheliushi。

 

误区六:茬次过多

henduohuanongrenwei,jianzaopengshitouzida,bunengrangdixianzhe,yushifuchagenzhezhucha、zhuchataozhongfucha,zaizhichaciguoduo,jieguoxiaoyiquebugao。

 

zhengquezuofawei:yishiduidabufenyinianshengcaohuaeryan,yuedongyidacha,yinianzhongyichaweihao,chunqiuchayiyinianliangzuoweiyi,youxiepinzhongkexushouyicha,jiagedishibachuliangdi;ershimeinianzaixiaqiujiliuyiduanshijian,duipengshineideturangjinxingshenfan、yulin、yayan,bingbaoshaishajun,menpengmiechong,shuhuaturang,chuxufeili。

 
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