防止萌芽和糠心是胡蘿卜冬季貯藏的首要問題。若貯藏溫度高,氣溫低,不僅因萌芽和蒸騰脫水導致糠心,而且也增大自然損耗;若貯溫過低,則肉質根易受凍害。所以胡蘿卜的貯藏環境必須保持低溫高濕的條件。通常適宜貯藏溫度為0~3℃,相對濕度為90%~95%。 胡蘿卜常用的貯藏方式有以下幾種:
一、溝藏
用於胡蘿卜的貯藏溝,一般寬1~1.5米,過寬則增大氣溫的影響,減少土壤的保溫作用,難以保持溝內的穩定低溫;溝的深度應當比當地冬季的凍土層再稍深0.6~0.8米,長度視貯量而定。貯藏過程中,隨環境溫度的變化來調節覆土厚度以降低溝內的溫度。
貯(zhu)藏(zang)溝(gou)應(ying)設(she)在(zai)地(di)勢(shi)較(jiao)高(gao),水(shui)位(wei)低(di)而(er)土(tu)質(zhi)粘(zhan)重(zhong)保(bao)水(shui)力(li)較(jiao)強(qiang)處(chu),東(dong)西(xi)延(yan)長(chang)。一(yi)般(ban)底(di)土(tu)較(jiao)潔(jie)淨(jing),雜(za)菌(jun)少(shao),供(gong)覆(fu)蓋(gai)用(yong)。表(biao)層(ceng)土(tu)堆(dui)在(zai)溝(gou)的(de)南(nan)側(ce)起(qi)遮(zhe)蔭(yin)作(zuo)用(yong),利(li)用(yong)土(tu)堆(dui)遮(zhe)蔭(yin),盡(jin)可(ke)能(neng)增(zeng)加(jia)其(qi)高(gao)度(du),不(bu)需(xu)附(fu)加(jia)材(cai)料(liao),在(zai)貯(zhu)藏(zang)的(de)前(qian)中(zhong)期(qi)便(bian)可(ke)起(qi)到(dao)良(liang)好(hao)的(de)降(jiang)溫(wen)和(he)保(bao)持(chi)恒(heng)溫(wen)的(de)效(xiao)果(guo)。
胡蘿卜可以散堆在溝內,厚度一般不超過0.5mi,yimiandicengchanpinshourefulan。zuihaoshiyushishacengji,youliyubaohushirunbingtigaozhigenzhouweideeryanghuatannongdu。xiajiaoshizaichanpinbiaomianfushangyibocengtu,yihousuiqiwenxiajiangfencitianjia,zuihouyueyudimianpingqi。bixuzhangwohaomeicifutudeshiqihehoudu,yifangdicengwenduguogaochanpinfulanhuobiaocengchanpinshoudong。weilezhangwoshiyidewenduqingkuang,kezaigouzhongjiansheyigezhutonghuomutong,neiguawenduji,shenrudaohuluobuzhongdingqiguanchagouneiwendu,yibianjishifugai。maizangdegencaiduoshuweiyicichugou,yiniantianqizhuannuanshi,chudiaofutu,tiaochufulandezhigen,wanhaodexuequdingyafanghuigounei,fuyicengbotu,kejixuzhucunyiduanshijian。
二、堆垛藏法
胡蘿卜在窖內或通風庫中可散堆或碼垛,堆不可過高,一般堆高為0.8~1米,否則堆內溫度高易腐爛。為了增強通風散熱效果可在堆內每隔1.5~2misheyitongfengtong。zhuzangzhongyibanbudaodui。zaijiaohuokuneiyongshishatucengjiyaobisanduixiaoguohao,bianyubaoshibingjileieryanghuatan。zhuyijiaohuokuneidewendu,biyaoshiyongcaolianjiayifugai,yifangshoudong。zhuzangzhongdingqichouzha,faxianfulanchanpinjishitiaochu。
三、塑料薄膜半封閉貯藏法
zaitongfengkuneijianghuluobuduimachengyidingdaxiaodechangfangxingduo,ruzhukaishihuokuwenshenggaomengyaqianyongsuliaobomozhangzhaoshang,duodibupubomo,banfengbizhuangtaikeshidangjiangdiyangqinongdu,tigaoeryanghuatanshuiping,baochigaoshi,yanchangzhuzangqi,baoxianxiaoguogenghao。zhuzangzhongkedingqijiezhangtongfenghuanqi,biyaoshijinxingjianzhatiaoxuan。
四、塑料薄膜袋裝貯藏法
在窖內或通風庫內采用0.07~0.08毫米厚的薄膜聚乙烯塑料袋密閉貯藏胡蘿卜,能有效抑製脫水和萌芽,在1℃低溫下貯藏,效果很好。
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