晚播越冬甘藍栽培一般是在9月份育苗,11月份利用棉花、水稻、果園、地瓜等晚茬地塊栽培。4月中旬收獲。一般畝收入3000yuan。shouyijiaohao,shoudaoguangdazhongzhihuhuanying。congbozhongdaoshouhuo,jingguojiaochangshiqidediwen,rongyifashengzaoqichoutaixianxiang。choutaihou,shiqushiyongjiazhi,yingxiangchanliang。yuedongganlanweishenmehuichuxianzaoqichoutai?
主要因為甘藍幼苗的葉片生長到一定數目、莖粗為0.6~1.6厘米以上時,經過一定時間的低溫(0℃~15℃),春化階段便形成花芽而於次年春季抽薹。
zaoqichoutaishiyuedongganlanshengchanshangdedawenti。guoneiwaisuijinxingledaliangdeshiyanyanjiu,youyuchoutaidefuzaxing,zhijinshangweichedijiejue。muqianfangzhiyuedongganlanweishuchoutaidezhuyaojishucuoshishikongzhiyuedongzhizhudaxiao,bushitaganshouzugoudediweneryunlei。
①嚴格掌握播種期和定植期。播種期宜掌握在9月下旬,不宜過早,否則抽薹率較高。定植過早,由於在大田營養麵積較大,幼苗生長較快,越冬植株較大,因而容易發生未熟抽薹;播種愈晚,越冬植株愈小,發育愈晚,抽薹率也愈低。但是,如果晚播也不利於甘藍安全越冬。
②選用冬性強、不易未熟抽薹的品種。如冬春2號、逢春等越冬甘藍栽培不易抽薹。冬春2號一般在9月底育苗,11月初大田移栽,該品種冬性較強。耐零下16dudiwenbuhuizaochengweishuchoutai。dongxingruodepinzhongjishiwanbo,xiaomiaoyuedong,yenanyibimianxianqichoutai。suoyiyuedongganlanyaobimianzaoqichoutai,shouxianyaojiejueganlandepinzhongwenti。haodepinzhongjiushifengshoudebaozheng。zongzhi,yuedongganlanpinzhonggengxinjiaoman,gouzhongshiyidingyaoxuanzexinyugao,tuiguangshijianchangdepinpai。
③控製苗期施肥。若越冬甘藍苗期施肥過多、越(yue)冬(dong)時(shi)植(zhi)株(zhu)過(guo)大(da),容(rong)易(yi)感(gan)受(shou)低(di)溫(wen)影(ying)響(xiang),通(tong)過(guo)發(fa)育(yu),發(fa)生(sheng)未(wei)熟(shu)抽(chou)薹(tai)現(xian)象(xiang)。故(gu)在(zai)定(ding)植(zhi)後(hou)控(kong)製(zhi)肥(fei)水(shui),勿(wu)使(shi)冬(dong)苗(miao)生(sheng)長(chang)過(guo)旺(wang),可(ke)以(yi)減(jian)少(shao)早(zao)期(qi)抽(chou)薹(tai)率(lv)或(huo)避(bi)免(mian)發(fa)生(sheng)先(xian)期(qi)抽(chou)薹(tai)。
在zai越yue冬dong甘gan藍lan栽zai培pei技ji術shu上shang控kong製zhi未wei熟shu抽chou薹tai是shi很hen重zhong要yao的de,但dan要yao高gao產chan還hai必bi須xu重zhong視shi其qi它ta技ji術shu措cuo施shi,如ru越yue冬dong甘gan藍lan對dui追zhui肥fei要yao求qiu嚴yan格ge,掌zhang握wo好hao追zhui肥fei的de時shi期qi,是shi防fang止zhi先xian期qi抽chou薹tai的de關guan鍵jian。春chun季ji溫wen度du升sheng高gao,植zhi株zhu生sheng長chang加jia快kuai,追zhui肥fei促cu進jin生sheng長chang,使shi生sheng長chang進jin程cheng超chao過guo發fa育yu進jin程cheng。既ji使shi發fa育yu的de植zhi株zhu,由you於yu追zhui肥fei的de關guan係xi,可ke使shi營ying養yang生sheng長chang超chao過guo生sheng殖zhi生sheng長chang,避bi免mian先xian期qi抽chou薹tai,達da到dao完wan成cheng結jie球qiu的de目mu的de。春chun旱han時shi還hai應ying加jia強qiang澆jiao灌guan。
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