youyuzhongchazhongzhi,genjiexianchongdengtuchuanbinghaiyichengyingxiangpengshishucaishengchanjiaoweituchudewenti,zaidapengkongxianqijinxingturangxiaodufeichangzhongyao。muqianzhuyaoyouyixiajizhongturangxiaoduji。
溴甲烷 使用前清除殘存秸稈及根係,深翻土壤至少30厘米,施好底肥,打碎大土塊,保證土壤20厘米深處溫度至少在8℃以上,溫度越高,熏蒸作用越強。處理時搭小拱棚,棚膜要蓋嚴。一般每畝用藥40公斤,每13平方米放1guanyao,yaoguanxiadianyixiaokuaisuliaobu,shiyaoshijiangyaoguankayukaiguanqishang,gezhefugaidepengmo,yonglixiangxiayaguan,shikaiguanqidejianrencipoguan,xiujiawanchengyetaixiechuyuxiadiandesuliaobushang,jifenzhonghouqihua。shiyongxiujiawanyidingyaojinshen,tongfengqijianyanjinnongshicaozuo,xunzhengqiyaodadao15天左右,揭開薄膜通風30天以上才可種植。由於溴甲烷對病菌、雜草、線蟲、昆蟲和蟎類等均有效,並且使用溴甲烷對黃瓜、番茄有明顯的增產效果,目前使用較為廣泛。
氰氨化鈣 一般先將土雜糞撒入棚中,用旋耕機旋耕後將氰氨化鈣均勻撒施在棚地上,然後再用旋耕機打勻,覆蓋地膜,20~25天後揭膜。
棉隆 一(yi)種(zhong)低(di)毒(du)的(de)土(tu)壤(rang)消(xiao)毒(du)劑(ji),相(xiang)對(dui)於(yu)氰(qing)氨(an)化(hua)鈣(gai)和(he)溴(xiu)甲(jia)烷(wan)來(lai)說(shuo)更(geng)安(an)全(quan)。棉(mian)隆(long)在(zai)潮(chao)濕(shi)的(de)土(tu)壤(rang)中(zhong)會(hui)產(chan)生(sheng)異(yi)硫(liu)氰(qing)酸(suan)甲(jia)酯(zhi)氣(qi)體(ti),迅(xun)速(su)擴(kuo)散(san)至(zhi)土(tu)壤(rang)顆(ke)粒(li)間(jian),有(you)效(xiao)殺(sha)滅(mie)土(tu)壤(rang)中(zhong)各(ge)種(zhong)線(xian)蟲(chong)、病菌、地下害蟲及雜草種子,從而達到清潔土壤、疏鬆活化土壤的效果。使用方法:土壤施好底肥後深翻(約30厘米)整平,澆水保濕3~4天,待土壤濕度在40%~60%時(土手捏能成團,1米高掉地後能散開),用旋耕機旋耕。然後將棉隆均勻撒在地表,每畝用藥20~30gongjin,shiyaohoulijiyongsuliaobufugai。mianlongfenjiechanshengdeqitibikongqiqing,yaoquebaosuliaobumeiyouposun,bunengyongdimodengtaibodesuliaobu,qiesibianyongtuyashi,mifenghao。mifengqibaozhengzai12天以上,結束後揭去塑料布,通風1星期後取土做發芽試驗,確保安全後才可進行育苗。
需xu要yao注zhu意yi的de是shi,土tu壤rang經jing過guo處chu理li後hou也ye殺sha滅mie了le有you益yi菌jun,應ying及ji時shi補bu施shi生sheng物wu菌jun肥fei,以yi保bao證zheng土tu壤rang中zhong有you足zu夠gou的de有you益yi菌jun存cun在zai。用yong消xiao毒du劑ji熏xun蒸zheng過guo的de棚peng室shi,在zai施shi用yong菌jun肥fei前qian應ying先xian敞chang棚peng透tou氣qi10天以上。
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