muqian,yuedongchashucaidadoujinruchuguoqi,ciqiyinshucaikezirengbushihenda,zhuguanjiaoxiao,zhizhuzhijianhaimeiyouhuxiangzheyin。yinci,henduocainongdourenweishucaizaiciqiwuxuzhengzhi,youxiecainongsuijinxinglezhengzhi,danyinweizhengzhibudang,faneryingxiangleshucaidechangshi。那麼,當前越冬茬蔬菜應怎樣整枝才合理呢?記者認為,應把握好以下兩項原則。
一(yi)是(shi)要(yao)注(zhu)意(yi)隻(zhi)整(zheng)枝(zhi)不(bu)打(da)杈(cha)。很(hen)多(duo)菜(cai)農(nong)認(ren)為(wei),整(zheng)枝(zhi)就(jiu)是(shi)疏(shu)葉(ye)打(da)杈(cha),其(qi)實(shi)這(zhe)是(shi)不(bu)正(zheng)確(que)的(de),整(zheng)枝(zhi)未(wei)必(bi)非(fei)得(de)疏(shu)葉(ye)打(da)杈(cha)。畢(bi)竟(jing),越(yue)冬(dong)茬(cha)蔬(shu)菜(cai)此(ci)期(qi)棵(ke)子(zi)還(hai)沒(mei)長(chang)成(cheng),仍(reng)處(chu)於(yu)營(ying)養(yang)生(sheng)長(chang)階(jie)段(duan),況(kuang)且(qie)植(zhi)株(zhu)間(jian)也(ye)不(bu)鬱(yu)蔽(bi),過(guo)早(zao)的(de)疏(shu)葉(ye)打(da)杈(cha)反(fan)而(er)會(hui)減(jian)少(shao)植(zhi)株(zhu)的(de)光(guang)合(he)麵(mian)積(ji),降(jiang)低(di)植(zhi)株(zhu)的(de)光(guang)合(he)能(neng)力(li)。因(yin)此(ci),此(ci)期(qi)蔬(shu)菜(cai)整(zheng)枝(zhi)是(shi)必(bi)須(xu)的(de),但(dan)不(bu)宜(yi)疏(shu)葉(ye)打(da)杈(cha),可(ke)通(tong)過(guo)拉(la)枝(zhi)開(kai)角(jiao)來(lai)增(zeng)加(jia)植(zhi)株(zhu)葉(ye)片(pian)的(de)見(jian)光(guang)率(lv)。如(ru)茄(qie)子(zi)和(he)甜(tian)椒(jiao)可(ke)將(jiang)吊(diao)繩(sheng)放(fang)鬆(song),使(shi)枝(zhi)條(tiao)向(xiang)外(wai)圍(wei)方(fang)向(xiang)發(fa)展(zhan),讓(rang)植(zhi)株(zhu)內(nei)膛(tang)多(duo)見(jian)光(guang),在(zai)增(zeng)加(jia)透(tou)光(guang)率(lv)的(de)同(tong)時(shi)又(you)有(you)控(kong)旺(wang)長(chang)的(de)作(zuo)用(yong)。西(xi)紅(hong)柿(shi)此(ci)期(qi)也(ye)可(ke)將(jiang)吊(diao)繩(sheng)放(fang)鬆(song),使(shi)植(zhi)株(zhu)下(xia)部(bu)接(jie)觸(chu)地(di)麵(mian),在(zai)抑(yi)旺(wang)的(de)同(tong)時(shi),又(you)能(neng)培(pei)養(yang)出(chu)不(bu)定(ding)根(gen),為(wei)後(hou)期(qi)高(gao)產(chan)打(da)好(hao)基(ji)礎(chu)。黃(huang)瓜(gua)此(ci)期(qi)更(geng)不(bu)宜(yi)疏(shu)葉(ye),為(wei)增(zeng)加(jia)植(zhi)株(zhu)間(jian)的(de)透(tou)光(guang)率(lv),可(ke)將(jiang)吊(diao)繩(sheng)鋼(gang)絲(si)設(she)置(zhi)成(cheng)活(huo)動(dong)式(shi),在(zai)不(bu)進(jin)行(xing)農(nong)事(shi)操(cao)作(zuo)時(shi),可(ke)將(jiang)種(zhong)植(zhi)行(xing)間(jian)距(ju)調(tiao)大(da),以(yi)此(ci)提(ti)高(gao)透(tou)光(guang)率(lv)。
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