誤區一:新棚室不栽嫁接苗 不少菜農認為新建棚室中,根結線蟲少,黃萎病、枯萎病、qingkubingbingjunshao,buzaizhijiajieqiemiaozhaoyangnenghuodegaochan,danshishishangbingfeiruci。xinpengshizhongzaizhiweijiajiedeqiemiao,zaichunjiehouwenduhuisheng,qiekedamianjikuwei、死(si)亡(wang),甚(shen)至(zhi)絕(jue)產(chan)的(de)現(xian)象(xiang)屢(lv)見(jian)不(bu)鮮(xian),而(er)用(yong)聖(sheng)托(tuo)斯(si)砧(zhen)木(mu)嫁(jia)接(jie)的(de)茄(qie)子(zi)則(ze)比(bi)較(jiao)正(zheng)常(chang),且(qie)產(chan)量(liang)高(gao)。在(zai)栽(zai)植(zhi)嫁(jia)接(jie)苗(miao)時(shi),若(ruo)嫁(jia)接(jie)定(ding)植(zhi)過(guo)早(zao),易(yi)早(zao)衰(shuai),年(nian)後(hou)產(chan)量(liang)低(di),影(ying)響(xiang)收(shou)入(ru)。
誤區二:重施化肥,輕視有機肥 zhongshihuafeihuizaochengturangbanjie,dimianyanzihuayanzhong,dibiaoxingchenglvtai,yanzhongzhexingchenghongtai,genxizaigaonongduturangrongyezhongfayushouzu,yepianlaohua,yingyangshengchangbuliang,chanliangxiajiang。cileipengshiyingzengshiyoujifei,shaoshihuobushihuafei,yijianqingfeihai。
誤區三:施肥單一,偏施氮肥 當前,菜農施肥主要以氮肥為主,而忽視磷肥、鉀肥和微肥,造成氮肥過多而浪費,也易使土壤產生鹽類障礙,並使病害加重。特別是茄子結果期需氮、磷、鉀肥的大致比例為3:1:4,因此結果期大量使用氮肥不符合茄子生長規律。應避免衝施單一肥料,要氮、磷、鉀肥配合施用。
誤區四:農藥混用不當 設she施shi茄qie子zi病bing害hai防fang治zhi應ying以yi預yu防fang為wei主zhu,治zhi療liao為wei輔fu,提ti前qian用yong藥yao預yu防fang,不bu僅jin成cheng本ben低di,而er且qie效xiao果guo好hao。有you的de菜cai農nong不bu管guan藥yao劑ji成cheng分fen如ru何he,喜xi歡huan多duo種zhong農nong藥yao混hun配pei使shi用yong,如ru此ci用yong藥yao,一yi是shi有you些xie藥yao劑ji之zhi間jian起qi化hua學xue反fan應ying,降jiang低di藥yao效xiao;二是濃度增加,葉片常浸在高濃度藥液中,使葉片功能下降,老化加快,降低光合作用。
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