春季到來,外界最高氣溫回升到15℃以yi上shang,天tian氣qi晴qing好hao時shi棚peng內nei保bao持chi較jiao高gao的de溫wen度du,植zhi株zhu生sheng長chang非fei常chang迅xun速su。近jin日ri,記ji者zhe在zai壽shou光guang市shi稻dao田tian鎮zhen西xi劉liu營ying村cun菜cai農nong劉liu師shi傅fu的de棚peng裏li看kan到dao,棚peng裏li尖jian椒jiao參can差cha不bu齊qi,植zhi株zhu長chang勢shi差cha別bie較jiao大da,一yi行xing中zhong有you三san分fen之zhi一yi的de棵ke子zi要yao高gao出chu其qi它ta植zhi株zhu二er十shi多duo厘li米mi,有you明ming顯xian的de旺wang長chang趨qu勢shi。還有一些棵子因為坐果早、根係弱等,植株較矮。在春季,很多菜農的棚室中都會出現這樣的問題。
zhisuoyichuxianwangchang,yifangmianshijinduanshijiantianqiqinghao,pengneiyizhibaochijiaogaodewendu,lingyifangmiancishiqizhengshijianjiaoguoshipengdaqi,shuifeigongyingbijiaochongzu,dangkezishangzuoguojiaoshaohuozheyixiazizhaichuyihou,zhizhufudanturanjianqing,yangfendalianggongyingjingyeshengchang,congerchuxianjiejianshenchang,yepiandaerlvdewangchangqingkuang。erwangchangyanzhongdezhizhu,kaihuazuoguoshoudaohendayingxiang,rongyixianruyiweituchangdeexingxunhuan。ernaxiediaidezhizhu,yinweiqitagaokedezhedangyijiturangyangfendejingzheng,yingyanggongyingbuzu,shengchangzongshimanyipai,hennanshipengneizhizhuchangshiyizhiqilai。
植株長勢不齊,對總體產量有很大的影響,因此隨著氣溫升高,更應該注重控製蔬菜生長不齊的現象。
首先,旺長的棵子要單獨用藥控製。菜農可用助壯素500倍或者愛多收2000倍,用小噴壺噴灑旺長植株頭頂,抑製其過旺的長勢。如果植株落花嚴重,可用2%萘乙酸6000倍噴霧。需要注意的是,最好用小型噴壺對點使用,避免大量藥劑落到其它的植株上。
其次,調整植株坐果。對於有旺長趨勢的植株,要適當多留果,保證生殖生長與營養生長的平衡;而對於低矮的植株,盡量少留果,促進其營養生長。
再zai次ci,增zeng加jia見jian光guang時shi間jian,拉la大da晝zhou夜ye溫wen差cha。下xia午wu放fang棚peng要yao延yan遲chi,增zeng加jia棚peng內nei光guang照zhao,並bing拉la大da晝zhou夜ye溫wen差cha,減jian少shao夜ye間jian有you機ji物wu的de消xiao耗hao,避bi免mian植zhi株zhu營ying養yang生sheng長chang過guo強qiang。白bai天tian溫wen度du控kong製zhi在zai25℃左右,夜間降到13℃。水肥供應要適量,不能為了膨果而隨意加大水肥用量,保證土壤內養分足夠膨果即可。
lingwai,tianjianyubi,tongfengtouguangcha,yeshizaochengwangchangdeyigeyinsu,yinciyaojiaqiangzhengzhi,jiangxingneiduoyudecezhijilaobingcanyequchu,youqishineitangzhi,gaishantongfengtouguangtiaojian,yekeyizhiwangchang。
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