蘿luo卜bu空kong心xin影ying響xiang其qi食shi用yong價jia值zhi和he品pin質zhi,許xu多duo菜cai農nong找zhao不bu出chu蘿luo卜bu空kong心xin的de原yuan因yin,其qi實shi蘿luo卜bu空kong心xin是shi因yin為wei土tu壤rang缺que硼peng造zao成cheng的de。可ke采cai用yong以yi下xia方fang法fa進jin行xing施shi硼peng肥fei防fang蘿luo卜bu空kong心xin:
作基肥 播種時畝用17%的硼酸300克或11%的硼砂500克,拌入5~10gongjindeganxituzhong,chongfenbanyunhouzaiguoshai,ranhouzuojifeishiruzhonggouhuozhongxuezhong。yekejiangluobuzihunrubanyoupengfeideganxituzhong,jingchongfenbanyun,saruzhonggouhezhongxuezhong。
拌種 用細土3~5公斤加水並按每畝300克硼酸或500克(ke)硼(peng)砂(sha)的(de)用(yong)量(liang)將(jiang)硼(peng)肥(fei)摻(chan)入(ru),一(yi)起(qi)攪(jiao)成(cheng)稀(xi)糊(hu)狀(zhuang),然(ran)後(hou)將(jiang)蘿(luo)卜(bu)籽(zi)和(he)若(ruo)幹(gan)的(de)幹(gan)細(xi)土(tu)倒(dao)入(ru),用(yong)手(shou)搓(cuo)使(shi)含(han)有(you)硼(peng)肥(fei)的(de)泥(ni)土(tu)粘(zhan)附(fu)在(zai)種(zhong)子(zi)表(biao)麵(mian)製(zhi)作(zuo)成(cheng)種(zhong)衣(yi),待(dai)種(zhong)子(zi)與(yu)種(zhong)子(zi)之(zhi)間(jian)能(neng)分(fen)離(li)即(ji)可(ke)用(yong)於(yu)播(bo)種(zhong)。
葉麵噴施 硼肥能促進蘿卜心實個大。從蘿卜苗長出2~3片真葉開始到收獲前半個月左右,每隔20天噴施1次硼肥,每畝每次用硼砂150克或硼酸100克,先用少量溫水溶解後,兌水60~75公斤均勻噴施,噴施時間以傍晚為宜。
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