dongjidaxueguohouhuolianxudiwenshaorizhaotianqiguohou,ruguoyudaoqiwenxunsuhuisheng,dapengshucaiwangwanghuichuxianweinianxianxiang,qingzheyanhuanshengchangfayu,zhongzheshenzhisiwang。萎蔫是葉片水分迅速蒸騰,供不應求的現象,可以歸納為以下三種情況:
diyizhongqingkuangshiyouyuqianqiguodidewendu,bufenyepianhuoyepiandebianshaoshouledonghai,shiqubaoshuigongneng。shouhaikaishiyepianhuonenshaochengshuijinzhuang,henkuaijiuhuiganku,yanseqinglv。wangwangrongyifashengzaifengkouhuogaimoposunchu。
第二種情況是前期根或莖基部受到根腐病、枯萎病、青枯病或地下害蟲的危害。檢查根、莖可以發現病灶或蟲咬的痕跡。
第(di)三(san)種(zhong)是(shi)生(sheng)理(li)性(xing)和(he)暫(zan)時(shi)性(xing)萎(wei)蔫(nian)。這(zhe)是(shi)比(bi)較(jiao)常(chang)見(jian)的(de)萎(wei)蔫(nian)現(xian)象(xiang)。一(yi)方(fang)麵(mian)由(you)於(yu)長(chang)期(qi)低(di)溫(wen)寡(gua)照(zhao),棚(peng)內(nei)土(tu)壤(rang)和(he)空(kong)氣(qi)的(de)濕(shi)度(du)大(da),使(shi)得(de)根(gen)係(xi)不(bu)發(fa)達(da),另(ling)一(yi)方(fang)麵(mian)是(shi)棚(peng)內(nei)氣(qi)溫(wen)上(shang)升(sheng)快(kuai)增(zeng)加(jia)葉(ye)麵(mian)蒸(zheng)騰(teng),而(er)土(tu)壤(rang)升(sheng)溫(wen)緩(huan)慢(man),根(gen)係(xi)活(huo)力(li)低(di)下(xia)所(suo)致(zhi)。
tixingdajiazhuyideshi,qianliangzhongweiniandoushiqianqishouhaidanzhengzhuangbumingxian,jinguantianqinghoubiaoxianmingxiandangenyuanzhuyaozaiqianqi。disanzhongqingkuangdebufenyuanyinyezaiqianqi,danzhuyaoshidangqianyingduiyaoheli。zhiyaokexueguanli,yibandounenghuifuzhengchangshengchang。
總zong之zhi,除chu了le寒han流liu期qi間jian注zhu意yi增zeng溫wen保bao溫wen和he噴pen灑sa藥yao劑ji防fang治zhi病bing蟲chong害hai等deng針zhen對dui性xing措cuo施shi以yi外wai,實shi行xing合he理li的de栽zai培pei管guan理li,培pei育yu壯zhuang苗miao是shi應ying對dui氣qi候hou強qiang烈lie變bian化hua的de基ji礎chu。低di溫wen期qi間jian注zhu意yi保bao溫wen但dan不bu能neng一yi味wei地di密mi閉bi溫wen室shi,管guan理li中zhong需xu要yao控kong水shui、促根、降濕、防病。當外界升溫較快時要調節苫簾揭、gaishijian,pingwenpengwendebianhuabingzhubulianmiao。yingzhuyiguanchashucaidebianhua,faxianshucaiweinian,yinglijifangshanhuobufenzheguang,jianshaozhengteng,huifuhouzaijieshan,jingguoliangdaosantiandeduanlian,jiukeyizhuanruzhengchangguanli。
另外,出現萎蔫時千萬不要灌大水,可適當噴施葉麵肥促進生長。
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