芒果视频下载

產品品質特性(xing)特征

（1）外在感(gan)官特征：占圩紅(hong)薯(shu)頂葉(xie)色(se)綠、莖(jing)色(se)綠，葉(xie)形缺刻。單株結薯(shu)4-6個，單塊重200-400克，薯(shu)塊呈紡綞(duo)形，薯(shu)皮紅(hong)色(se)，薯(shu)肉淡(dan)桔紅(hong)。生食脆甜(tian)，有清香味，熟(shu)食軟甜(tian)，粗纖維少。

（2）內(nei)在品質指標：含淀粉11.5%—13.1%；還(huan)原糖2.36%—3.14%；維生素C15.7mg/100g—17.3 mg/100g；鉀232 mg/100g —283mg/100g ；粗纖維0.59%-0.71%。

（3）質量安全要(yao)求(qiu)：占圩紅(hong)薯產(chan)(chan)地(di)環境(jing)(jing)符合NY/T5010-2016《無公害農(nong)產(chan)(chan)品(pin) 種植業產(chan)(chan)地(di)環境(jing)(jing)條(tiao)件》要(yao)求(qiu)。

地域范圍

東(dong)鄉(xiang)縣(xian)占(zhan)圩(wei)鎮(zhen)位(wei)于江西省的西部，東(dong)臨(lin)本(ben)縣(xian)圩(wei)上(shang)橋鎮(zhen)，西接臨(lin)川區，北(bei)靠進賢縣(xian)。南接馬圩(wei)鎮(zhen)，占(zhan)圩(wei)紅(hong)薯保護(hu)范圍為(wei)東(dong)鄉(xiang)縣(xian)占(zhan)圩(wei)鎮(zhen)，保護(hu)范圍位(wei)于東(dong)經116°45′08〞—116°51′00〞，北(bei)緯(wei)28°08′21〞—28°14′35〞。保護(hu)規模為(wei)700公(gong)頃，年產(chan)量(liang)18900噸。

自(zi)然生態(tai)環境和人文歷史因素

占(zhan)圩(wei)地處(chu)贛東(dong)丘陵與鄱(po)陽湖平原過渡地帶，屬亞熱帶濕潤(run)季風氣(qi)(qi)候，氣(qi)(qi)候溫和，雨量豐沛(pei)、光(guang)照充足、熱量豐富、四季分明；年平均(jun)氣(qi)(qi)溫17.6度，平均(jun)日照時(shi)間(jian)1831.9小時(shi)，年無霜期為271天；土(tu)壤多為紅壤，形(xing)成了 “占(zhan)圩(wei)紅薯”種植的獨特自然生態環境。

特定生產方式

（1）產地要(yao)求：占圩紅薯要(yao)選擇陽光(guang)充足、耕作層深(shen)度40-50厘(li)米以上、通氣(qi)爽(shuang)水、富含磷、鉀成(cheng)分的(de)紅壤土質種植。

（2）品(pin)(pin)種選(xuan)擇：當地占(zhan)圩紅(hong)薯品(pin)(pin)種。

（3）生(sheng)產(chan)(chan)管理(li)： ①選(xuan)(xuan)種(zhong)(zhong)：選(xuan)(xuan)擇中(zhong)(zhong)(zhong)等大(da)小(xiao)（150克—220克），皮色鮮(xian)明無(wu)病斑的(de)占(zhan)(zhan)圩(wei)(wei)紅(hong)薯(shu)(shu)(shu)薯(shu)(shu)(shu)塊(kuai)做(zuo)種(zhong)(zhong)薯(shu)(shu)(shu)。②育苗(miao)(miao)(miao)：占(zhan)(zhan)圩(wei)(wei)紅(hong)薯(shu)(shu)(shu)主(zhu)要(yao)選(xuan)(xuan)用溫(wen)(wen)(wen)(wen)(wen)床(chuang)育苗(miao)(miao)(miao)。即(ji)選(xuan)(xuan)擇地(di)下(xia)水(shui)位(wei)低(di)(di)、排(pai)(pai)水(shui)方便(bian)、避風向(xiang)陽(yang)、3—5年(nian)未種(zhong)(zhong)過(guo)紅(hong)薯(shu)(shu)(shu)的(de)疏(shu)松土(tu)(tu)壤做(zuo)為的(de)苗(miao)(miao)(miao)床(chuang)。將新(xin)鮮(xian)畜(chu)糞、作(zuo)物(wu)秸稈等釀熱物(wu)分層墊放(fang)，厚度(du)(du)50cm左(zuo)右(you)。在(zai)3月(yue)上旬(xun)將選(xuan)(xuan)好(hao)的(de)種(zhong)(zhong)薯(shu)(shu)(shu)按照塊(kuai)頭部(bu)朝上，底部(bu)朝下(xia)，大(da)薯(shu)(shu)(shu)排(pai)(pai)深(shen)小(xiao)薯(shu)(shu)(shu)排(pai)(pai)淺的(de)方式排(pai)(pai)種(zhong)(zhong)，排(pai)(pai)種(zhong)(zhong)密度(du)(du)13cm×16cm。排(pai)(pai)種(zhong)(zhong)后覆土(tu)(tu)，土(tu)(tu)層不宜過(guo)厚，用地(di)膜低(di)(di)拱(gong)覆蓋保(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)。③苗(miao)(miao)(miao)床(chuang)管理(li)：堅持前(qian)期高溫(wen)(wen)(wen)(wen)(wen)催芽，中(zhong)(zhong)(zhong)期適(shi)溫(wen)(wen)(wen)(wen)(wen)長(chang)苗(miao)(miao)(miao)，后期低(di)(di)溫(wen)(wen)(wen)(wen)(wen)煉苗(miao)(miao)(miao)的(de)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)控(kong)制原則，主(zhu)要(yao)通過(guo)低(di)(di)拱(gong)膜的(de)蓋、揭管理(li)來(lai)調溫(wen)(wen)(wen)(wen)(wen)控(kong)溫(wen)(wen)(wen)(wen)(wen)。床(chuang)溫(wen)(wen)(wen)(wen)(wen)保(bao)(bao)持在(zai)30℃—35℃，溫(wen)(wen)(wen)(wen)(wen)度(du)(du)超過(guo)30℃要(yao)及(ji)時(shi)揭膜降溫(wen)(wen)(wen)(wen)(wen)，在(zai)氣溫(wen)(wen)(wen)(wen)(wen)不低(di)(di)于20℃時(shi)，揭膜煉苗(miao)(miao)(miao)。苗(miao)(miao)(miao)床(chuang)不宜過(guo)干或過(guo)濕(shi)，保(bao)(bao)持床(chuang)土(tu)(tu)濕(shi)潤。④大(da)田(tian)栽(zai)培：待(dai)5月(yue)下(xia)旬(xun)選(xuan)(xuan)擇土(tu)(tu)層深(shen)厚、土(tu)(tu)質(zhi)疏(shu)松、通氣良好(hao)、肥沃適(shi)度(du)(du)的(de)土(tu)(tu)壤深(shen)耕，待(dai)苗(miao)(miao)(miao)高20cm—25cm左(zuo)右(you)時(shi)即(ji)可(ke)剪苗(miao)(miao)(miao)栽(zai)插。要(yao)求(qiu)畝施腐(fu)熟(shu)的(de)廄(jiu)肥110公(gong)斤(jin)—150公(gong)斤(jin)，石(shi)灰80公(gong)斤(jin)—100公(gong)斤(jin)。移栽(zai)成活(huo)后新(xin)蔓長(chang)5cm—10cm時(shi)追施苗(miao)(miao)(miao)肥。⑤田(tian)間管理(li)：在(zai)插后3天(tian)—7天(tian)要(yao)及(ji)時(shi)查苗(miao)(miao)(miao)補(bu)蔸，對補(bu)栽(zai)的(de)薯(shu)(shu)(shu)苗(miao)(miao)(miao)要(yao)實行(xing)重點管。薯(shu)(shu)(shu)苗(miao)(miao)(miao)活(huo)蔸后進行(xing)第一(yi)次(ci)中(zhong)(zhong)(zhong)耕，隔10天(tian)—15天(tian)再(zai)中(zhong)(zhong)(zhong)耕一(yi)次(ci)，在(zai)薯(shu)(shu)(shu)蔓滿田(tian)前(qian)完(wan)成第三次(ci)中(zhong)(zhong)(zhong)耕。⑥收獲：占(zhan)(zhan)圩(wei)(wei)紅(hong)薯(shu)(shu)(shu)一(yi)般在(zai)10月(yue)中(zhong)(zhong)(zhong)、下(xia)旬(xun)初霜前(qian)收獲。⑦生(sheng)產(chan)(chan)記錄：建立完(wan)善(shan)的(de)生(sheng)產(chan)(chan)記錄檔(dang)案(an)，確保(bao)(bao)記錄檔(dang)案(an)可(ke)追溯(su)占(zhan)(zhan)圩(wei)(wei)紅(hong)薯(shu)(shu)(shu)實際生(sheng)產(chan)(chan)全過(guo)程，檔(dang)案(an)資(zi)料(liao)準確、清晰、完(wan)善(shan)。