往年為了便於緩苗,都是在茄子苗定植之前2~3天在苗床上澆一水,這樣基質中水分供應充足,茄子根係生長旺盛,但在搬苗時對根係損傷較大,容易感染病害。所以,茄子在定植前5天不澆水為宜,原因有三:
shouxian,youyuqieziyoumiaozaijizhizhongchangshilianghao,genxihuodongwangsheng,jiaoshuihoujiuhuizaochenggenxidedaliangshengchang,zheyanggenxijiurongyicongyingyangbeidibudetoushuikongchangchu,xiazhadaobeidideturangdangzhong,yizhizaibanyunyoumiaoshigenxidaliangduanlie,yingxiangqiezidehuanmiao,tongshichanshengdeshangkouhairongyizaochengtuchuanbinghaideruqin,daozhiqiezidegenbubinghaijiazhong。
其(qi)次(ci),不(bu)利(li)於(yu)緩(huan)苗(miao)。根(gen)係(xi)吸(xi)收(shou)水(shui)分(fen)和(he)營(ying)養(yang)主(zhu)要(yao)是(shi)依(yi)靠(kao)根(gen)尖(jian)完(wan)成(cheng)。在(zai)定(ding)植(zhi)之(zhi)前(qian)澆(jiao)水(shui)導(dao)致(zhi)根(gen)係(xi)生(sheng)長(chang)量(liang)大(da),根(gen)尖(jian)較(jiao)嫩(nen),在(zai)定(ding)植(zhi)時(shi)根(gen)尖(jian)大(da)量(liang)受(shou)傷(shang),會(hui)嚴(yan)重(zhong)影(ying)響(xiang)根(gen)係(xi)的(de)吸(xi)水(shui)肥(fei)能(neng)力(li),使(shi)定(ding)植(zhi)後(hou)緩(huan)苗(miao)時(shi)間(jian)延(yan)長(chang)。
再次,在定植茄子前5天內澆水,使得基質中的水分含量增大,增加了營養杯的重量,加大了搬運茄子幼苗的勞動強度。
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