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。
早zao期qi抽chou薹tai是shi越yue冬dong甘gan藍lan生sheng產chan上shang的de大da問wen題ti。國guo內nei外wai雖sui進jin行xing了le大da量liang的de試shi驗yan研yan究jiu,由you於yu抽chou薹tai的de複fu雜za性xing,至zhi今jin尚shang未wei徹che底di解jie決jue。目mu前qian防fang止zhi越yue冬dong甘gan藍lan未wei熟shu抽chou薹tai的de主zhu要yao技ji術shu措cuo施shi是shi控kong製zhi越yue冬dong植zhi株zhu大da小xiao,不bu使shi它ta感gan受shou足zu夠gou的de低di溫wen而er孕yun蕾lei。
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16度(du)低(di)溫(wen)不(bu)會(hui)造(zao)成(cheng)未(wei)熟(shu)抽(chou)薹(tai)。冬(dong)性(xing)弱(ruo)的(de)品(pin)種(zhong)既(ji)使(shi)晚(wan)播(bo),小(xiao)苗(miao)越(yue)冬(dong),也(ye)難(nan)以(yi)避(bi)免(mian)先(xian)期(qi)抽(chou)薹(tai)。所(suo)以(yi)越(yue)冬(dong)甘(gan)藍(lan)要(yao)避(bi)免(mian)早(zao)期(qi)抽(chou)薹(tai),首(shou)先(xian)要(yao)解(jie)決(jue)甘(gan)藍(lan)的(de)品(pin)種(zhong)問(wen)題(ti)。好(hao)的(de)品(pin)種(zhong)就(jiu)是(shi)豐(feng)收(shou)的(de)保(bao)證(zheng)。總(zong)之(zhi),越(yue)冬(dong)甘(gan)藍(lan)品(pin)種(zhong)更(geng)新(xin)較(jiao)慢(man),購(gou)種(zhong)時(shi)一(yi)定(ding)要(yao)選(xuan)擇(ze)信(xin)譽(yu)高(gao),推(tui)廣(guang)時(shi)間(jian)長(chang)的(de)品(pin)牌(pai)。
③控製苗期施肥。若越冬甘藍苗期施肥過多、yuedongshizhizhuguoda,rongyiganshoudiwenyingxiang,tongguofayu,fashengweishuchoutaixianxiang。guzaidingzhihoukongzhifeishui,wushidongmiaoshengchangguowang,keyijianshaozaoqichoutailvhuobimianfashengxianqichoutai。
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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