近段時間,通過記者下鄉采訪了解到,不少農戶棚內蔬菜皴皮果發生較為普遍,嚴重影響蔬菜果實的商品性。該情況多發生在番茄、甜椒、小黃瓜、苦瓜等蔬菜作物上。經記者調查,主要有兩方麵原因:
一(yi)是(shi)放(fang)風(feng)不(bu)當(dang)。時(shi)至(zhi)深(shen)秋(qiu),白(bai)天(tian)光(guang)照(zhao)時(shi)間(jian)縮(suo)短(duan),早(zao)晚(wan)氣(qi)溫(wen)較(jiao)低(di),晝(zhou)夜(ye)溫(wen)差(cha)較(jiao)大(da),雖(sui)然(ran)夜(ye)間(jian)農(nong)戶(hu)已(yi)經(jing)將(jiang)棚(peng)室(shi)的(de)風(feng)口(kou)關(guan)閉(bi),但(dan)卻(que)會(hui)在(zai)蔬(shu)菜(cai)葉(ye)片(pian)、guoshibiaomianxingchenglushui,kanshangqushilulude。jiaruononghuzaochenfangfengguozaohuoyicixingfangfengguoda,waijielengkongqijinrupengnei,zhipushucaizhizhu,shideguoshibiaomianwen、濕度變化劇烈,果皮受害嚴重,出現皴皮果。
二er是shi與yu硼peng肥fei缺que乏fa有you關guan。據ju植zhi物wu營ying養yang學xue上shang介jie紹shao,蔬shu菜cai皴cun皮pi果guo產chan生sheng的de細xi小xiao裂lie紋wen與yu硼peng肥fei缺que乏fa有you關guan。生sheng產chan中zhong,硼peng元yuan素su供gong應ying和he吸xi收shou不bu足zu,易yi加jia重zhong果guo實shi皴cun皮pi發fa生sheng。
jizherenwei,jianshaoshucaicunpiguo,yingcongyixialianggefangmianrushou。yishihelifangfeng,jianqinglengfengweihai。dangqian,jianyizaochenbadianzuoyou,daipengwenhuishengshi,xianbakai5厘米左右的縫隙,通風換氣,保持15—20分鍾後關閉,待棚溫升至30℃時,再逐漸扒開風口,調控棚溫。(注:一次放風不要過大,開始先保持10厘米左右的縫隙,之後再逐漸加大。)此外,通過覆蓋地膜、行間鋪草、shiyongweiguandengcuoshi,kejinliangjiangdipengneishidu,jianshaoguomianlushui,yenengbimiancunpidafasheng。ershibuchongpengfei,tigaoguoshirendu。kezaikaihuaqianyemianpensahanpengdeyefei,ruduojupeng1500倍等,連續2次。
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