近日,記者在壽光市孫家集街道大棚區進行采訪時,發現有些大棚內靠近門口和放風口下邊的蔬菜被冷風吹過後,有些植株發生了黃化、生長停滯的現象,嚴重的則已經枯死。大棚蔬菜遭遇冷風撲苗後如何應對呢?記者認為,應做好以下幾點:
首先,慢放風、mantiwen。shucaizaoyulengfengpumiaohou,diertianzaochenxianbuyaojiyufangfeng,yaoxianbawendumanmanditigaodaoshucaishengchangzuishiyidefanweinei。pengneiwenduguogaobixufangfengshi,yidingzhuyifangfengkoubuyaoyiciladeguoda,yaohuanmandibawendujiangxialai。yifangyidanfangfengkoufangfengguoji,zaochenggengdaweihai。
其(qi)次(ci),適(shi)時(shi)采(cai)用(yong)以(yi)水(shui)調(tiao)溫(wen)的(de)方(fang)法(fa)。蔬(shu)菜(cai)受(shou)凍(dong)後(hou)應(ying)澆(jiao)水(shui)一(yi)次(ci),因(yin)澆(jiao)水(shui)能(neng)增(zeng)加(jia)土(tu)壤(rang)熱(re)容(rong)量(liang),防(fang)止(zhi)地(di)溫(wen)下(xia)降(jiang),穩(wen)定(ding)地(di)表(biao)大(da)氣(qi)溫(wen)度(du),有(you)利(li)於(yu)氣(qi)溫(wen)平(ping)穩(wen)上(shang)升(sheng),從(cong)而(er)使(shi)受(shou)凍(dong)組(zu)織(zhi)恢(hui)複(fu)機(ji)能(neng)。也(ye)可(ke)采(cai)用(yong)人(ren)工(gong)噴(pen)水(shui)的(de)方(fang)法(fa),來(lai)增(zeng)加(jia)棚(peng)內(nei)空(kong)氣(qi)濕(shi)度(du),穩(wen)定(ding)棚(peng)溫(wen),並(bing)抑(yi)製(zhi)受(shou)凍(dong)組(zu)織(zhi)脫(tuo)出(chu)的(de)水(shui)蒸(zheng)發(fa),促(cu)使(shi)組(zu)織(zhi)吸(xi)水(shui),防(fang)治(zhi)萎(wei)蔫(nian)。
再(zai)次(ci),受(shou)冷(leng)風(feng)影(ying)響(xiang)的(de)植(zhi)株(zhu)要(yao)適(shi)當(dang)遮(zhe)陰(yin),適(shi)時(shi)噴(pen)施(shi)葉(ye)麵(mian)肥(fei)。植(zhi)株(zhu)受(shou)冷(leng)後(hou),天(tian)氣(qi)晴(qing)好(hao)時(shi),若(ruo)直(zhi)接(jie)讓(rang)強(qiang)陽(yang)光(guang)照(zhao)射(she),極(ji)易(yi)發(fa)生(sheng)組(zu)織(zhi)迅(xun)速(su)失(shi)水(shui),幹(gan)縮(suo)萎(wei)蔫(nian),情(qing)況(kuang)嚴(yan)重(zhong)時(shi),植(zhi)株(zhu)便(bian)會(hui)死(si)亡(wang)。因(yin)此(ci)要(yao)對(dui)其(qi)進(jin)行(xing)遮(zhe)擋(dang),以(yi)此(ci)來(lai)減(jian)輕(qing)陽(yang)光(guang)照(zhao)射(she)強(qiang)度(du),同(tong)時(shi)避(bi)免(mian)升(sheng)溫(wen)過(guo)快(kuai)。然(ran)後(hou)對(dui)受(shou)冷(leng)植(zhi)株(zhu)及(ji)時(shi)合(he)理(li)噴(pen)施(shi)葉(ye)麵(mian)肥(fei),既(ji)能(neng)改(gai)善(shan)作(zuo)物(wu)的(de)營(ying)養(yang)狀(zhuang)況(kuang),又(you)能(neng)增(zeng)加(jia)細(xi)胞(bao)組(zu)織(zhi)液(ye)的(de)濃(nong)度(du),增(zeng)強(qiang)植(zhi)株(zhu)耐(nai)寒(han)抗(kang)凍(dong)能(neng)力(li),促(cu)進(jin)恢(hui)複(fu)生(sheng)長(chang)。可(ke)噴(pen)施(shi)磷(lin)酸(suan)二(er)氫(qing)鉀(jia)或(huo)甲(jia)殼(ke)素(su)1000倍,效果不錯。
手機版




