muqian,dabufenqiuyanchishucaizhengchuzaiyumiaoshijie,erzheduanshijian,tianqibianhuakuai,zhouyewenchada,ruozaiciqineibuzhuyitiaokongpengneiwenshidu,zehenrongyichuxianruomiao、jiangmiaodeng,zhexiebujiankangdemiaodingzhihoujiangzhijieyingxiangdaoshucaidechanlianghexiaoyi。yinci,zheyishiqiyingmiqiezhuyitianqibianhua,kongzhihaopengneidewenshidu,yifangyoumiaozaijijiejiaotidetianqilichuxianyichang。
白天仍需覆蓋遮陽網,並注意加強通風 liqiuhou,baitiantianqirenghenyanre,guangzhaorengjiaoqiang。yinci,qingtiandezhongwurengxuzaipengdingfugaizheyangwang,yifangyoumiaobeiqiangguangzhuoshang。tongshizhuyijiaqiangtongfeng,kongzhihaopengneidewendu,yanfanggaowenweihai,yibanqieguoleishucaiyumiaoqipengneidewendubaitianyingkongzhizai30℃左右,瓜類蔬菜育苗期棚內的溫度白天應控製在32℃,當棚內溫度超過35℃時應加大通風力度。
大棚夜間應注意保溫,避免幼苗受低溫冷害 秋qiu季ji溫wen差cha較jiao大da,夜ye間jian溫wen度du常chang會hui降jiang低di。因yin此ci,正zheng處chu在zai育yu苗miao期qi的de蔬shu菜cai要yao注zhu意yi在zai傍bang晚wan關guan嚴yan大da棚peng通tong風feng口kou,以yi防fang幼you苗miao夜ye間jian遭zao遇yu冷leng風feng侵qin襲xi,生sheng長chang不bu良liang。一yi般ban茄qie果guo類lei蔬shu菜cai育yu苗miao期qi棚peng內nei的de溫wen度du夜ye間jian應ying控kong製zhi在zai16℃,瓜類蔬菜育苗期棚內的溫度夜間應控製在12℃~18℃,低於此標準應及時采取保溫措施。
陰雨天注意加強管理 秋(qiu)季(ji)陰(yin)雨(yu)天(tian)較(jiao)多(duo),應(ying)注(zhu)意(yi)采(cai)取(qu)綜(zong)合(he)措(cuo)施(shi),加(jia)強(qiang)管(guan)理(li),促(cu)進(jin)幼(you)苗(miao)正(zheng)常(chang)生(sheng)長(chang)。首(shou)先(xian),在(zai)陰(yin)雨(yu)天(tian)裏(li),對(dui)處(chu)於(yu)育(yu)苗(miao)期(qi)的(de)蔬(shu)菜(cai)應(ying)加(jia)強(qiang)通(tong)風(feng),盡(jin)量(liang)避(bi)免(mian)澆(jiao)水(shui)和(he)噴(pen)藥(yao),必(bi)須(xu)用(yong)藥(yao)時(shi)應(ying)選(xuan)用(yong)粉(fen)塵(chen)劑(ji),以(yi)免(mian)增(zeng)加(jia)棚(peng)內(nei)濕(shi)度(du),誘(you)發(fa)病(bing)害(hai);其次,棚內要保持充足的光照,為防高溫強光而在棚麵噴泥漿的棚,應擦拭幹淨,以免影響蔬菜的光合作用;第三,久陰暴晴後應及時用遮陽網遮陽,以防蔬菜“閃苗”;第四,下雨時應關嚴棚頂的通風口,以防雨水進入,導致蔬菜感染病害。
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