一.自然生態環(huan)境和(he)人文歷史(shi)因素
1、土(tu)(tu)(tu)壤(rang)(rang)地(di)貌情況:長樂(le)(le)是一個(ge)準半(ban)島,地(di)貌屬低山丘陵(ling)(ling)小區。低山丘陵(ling)(ling)略(lve)成“工”字型,分布于中部(bu)和南(nan)部(bu)。東部(bu)為開闊的(de)(de)濱海平原,最低處海拔(ba)2~5米。西部(bu)為營前-玉田平原,貫以(yi)溪川,屬福(fu)州(zhou)平原一部(bu)分。境內山丘屬戴(dai)云山脈東翼的(de)(de)延伸(shen)支脈。長樂(le)(le)的(de)(de)主要土(tu)(tu)(tu)壤(rang)(rang)為沙壤(rang)(rang)土(tu)(tu)(tu), 土(tu)(tu)(tu)壤(rang)(rang)比較肥沃,土(tu)(tu)(tu)質(zhi)疏松,耕(geng)性較好,適種性廣,十分適宜番(fan)(fan)(fan)薯(shu)(shu)(shu)的(de)(de)種植,種植出的(de)(de)番(fan)(fan)(fan)薯(shu)(shu)(shu)表(biao)面(mian)美觀光滑(hua),薯(shu)(shu)(shu)塊(kuai)大,均勻。且土(tu)(tu)(tu)壤(rang)(rang)有(you)機質(zhi)、全氮(dan)和全鉀含(han)量較豐富,有(you)機質(zhi)3.06-3.9g/kg,堿解氮(dan)52-64mg/kg,速(su)效鉀91-133mg/kg。有(you)研(yan)究(jiu)表(biao)明(ming)鉀對番(fan)(fan)(fan)薯(shu)(shu)(shu)的(de)(de)莖葉生長有(you)一定的(de)(de)促進作用,鉀對薯(shu)(shu)(shu)塊(kuai)的(de)(de)增產效應顯著,同(tong)時鉀可以(yi)改善番(fan)(fan)(fan)薯(shu)(shu)(shu)的(de)(de)品質(zhi)。(施(shi)鉀對甘(gan)薯(shu)(shu)(shu)生長、產量及品質(zhi)的(de)(de)影(ying)響(xiang),尹子娟,云南(nan)農業(ye)大學(xue)(xue)農學(xue)(xue)與生物技術學(xue)(xue)院)
2、水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)文(wen)情況:長(chang)(chang)(chang)樂(le)中部(bu)(bu)(bu)與(yu)南(nan)部(bu)(bu)(bu)丘陵(ling)低(di)地(di)(di)將境內(nei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)系一分為二:西(xi)部(bu)(bu)(bu)與(yu)西(xi)北(bei)(bei)部(bu)(bu)(bu)屬(shu)(shu)閩江水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)系,自南(nan)往北(bei)(bei)注入(ru)閩江,構成(cheng)營前—洋嶼水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)網(wang)(wang)(wang)(太平(ping)港(gang)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)網(wang)(wang)(wang));東(dong)(dong)部(bu)(bu)(bu)長(chang)(chang)(chang)樂(le)平(ping)原上(shang)密(mi)布的(de)河汊與(yu)天(tian)然港(gang)道,構成(cheng)南(nan)洋水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)網(wang)(wang)(wang)與(yu)北(bei)(bei)洋水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)網(wang)(wang)(wang)。北(bei)(bei)洋水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)網(wang)(wang)(wang)北(bei)(bei)入(ru)閩江,南(nan)洋水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)網(wang)(wang)(wang)北(bei)(bei)經(jing)渡(du)橋與(yu)北(bei)(bei)洋水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)網(wang)(wang)(wang)溝(gou)通,從潭(tan)頭港(gang)等地(di)(di)注入(ru)東(dong)(dong)海;西(xi)經(jing)北(bei)(bei)山(shan)與(yu)太平(ping)港(gang)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)網(wang)(wang)(wang)相通,注入(ru)閩江;東(dong)(dong)經(jing)文(wen)武砂、十八孔、漳(zhang)港(gang)仙岐等地(di)(di)注入(ru)東(dong)(dong)海。河網(wang)(wang)(wang)密(mi)度(du)(du)平(ping)均(jun)每(mei)平(ping)方(fang)(fang)公(gong)里2公(gong)里。河流(liu)較短促,為獨立水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)系,大多源自境內(nei)低(di)山(shan)區。由于(yu)長(chang)(chang)(chang)樂(le)地(di)(di)處沿海,年平(ping)均(jun)逕(jing)流(liu)深600~900毫米,屬(shu)(shu)福建省低(di)值區,地(di)(di)表(biao)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)全靠降(jiang)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)補(bu)給。年平(ping)均(jun)地(di)(di)表(biao)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)逕(jing)流(liu)量4.084億(yi)立方(fang)(fang)米,逕(jing)流(liu)分布從西(xi)南(nan)向東(dong)(dong)北(bei)(bei)遞減,年逕(jing)流(liu)系數都在0.6以(yi)下(xia)。長(chang)(chang)(chang)樂(le)境內(nei)地(di)(di)表(biao)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)均(jun)屬(shu)(shu)于(yu)低(di)礦化度(du)(du)、總硬度(du)(du)低(di)的(de)軟(ruan)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui),天(tian)然水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)質(zhi)較好,水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)源水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)質(zhi)達(da)到國家飲用(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)2級以(yi)上(shang)標準,優(you)質(zhi)的(de)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)源選就長(chang)(chang)(chang)樂(le)番(fan)薯優(you)良的(de)品質(zhi)。
3、氣(qi)候(hou)情況:長(chang)(chang)(chang)樂屬中(zhong)(zhong)亞熱帶海洋性季風(feng)(feng)氣(qi)候(hou)區,暖和濕(shi)(shi)潤,夏長(chang)(chang)(chang)少(shao)酷(ku)暑(shu),冬短少(shao)霜雪。年平(ping)(ping)均(jun)(jun)(jun)氣(qi)溫(wen)(wen)19.3℃。1月(yue)平(ping)(ping)均(jun)(jun)(jun)氣(qi)溫(wen)(wen)10.3℃,極端(duan)低溫(wen)(wen)-1.3℃;7月(yue)平(ping)(ping)均(jun)(jun)(jun)氣(qi)溫(wen)(wen)28.3℃,極端(duan)高(gao)溫(wen)(wen)37.4℃。無霜期333天。降水(shui)量(liang)1382.3毫(hao)米(mi)(mi)。境內空(kong)氣(qi)壓(ya)力較高(gao),濕(shi)(shi)度較大,年平(ping)(ping)均(jun)(jun)(jun)絕對(dui)濕(shi)(shi)度19.7毫(hao)巴,年際變化不(bu)大,均(jun)(jun)(jun)在19.2~20.3毫(hao)巴。年平(ping)(ping)均(jun)(jun)(jun)風(feng)(feng)速每秒4.1米(mi)(mi),大多東(dong)北風(feng)(feng)。年平(ping)(ping)均(jun)(jun)(jun)太陽輻射量(liang)107.7千卡/平(ping)(ping)方(fang)厘(li)米(mi)(mi),年均(jun)(jun)(jun)日(ri)照4400小時,日(ri)照百分率(lv)41.5%。全年中(zhong)(zhong),7~8月(yue)份日(ri)照最豐,由于(yu)充(chong)足的(de)光照條件,使得長(chang)(chang)(chang)樂番(fan)薯能(neng)夠(gou)很好的(de)進(jin)行有機質的(de)積累,淀粉含量(liang)增加(jia),長(chang)(chang)(chang)樂番(fan)薯的(de)食味香甜(tian),粉質可(ke)口。長(chang)(chang)(chang)樂是適應長(chang)(chang)(chang)樂番(fan)薯生產的(de)好地(di)方(fang)。
二.地域范圍
長(chang)樂(le)番(fan)薯地理標(biao)志(zhi)保護(hu)范(fan)圍(wei)包括長(chang)樂(le)市轄區內的潭(tan)頭鎮、文嶺鎮、湖南(nan)鎮、鶴上鎮、梅(mei)花鎮、江田鎮、羅(luo)聯鄉、古槐鎮、金峰(feng)鎮、漳港鎮、文武砂鎮,東到(dao)梅(mei)花鎮梅(mei)東村(cun)(cun),西到(dao)羅(luo)聯鄉東林村(cun)(cun),南(nan)到(dao)江田鎮下沙(sha)村(cun)(cun),北到(dao)潭(tan)頭鎮福星村(cun)(cun),保護(hu)范(fan)圍(wei)為11個鄉鎮、172個村(cun)(cun)。地理坐標(biao): 北緯25°48′19"~26°05′43"、東經(jing)119°27′30"~119°51′26"之間(jian),總保護(hu)面積(ji)46038公(gong)頃,年生(sheng)產面積(ji)2000公(gong)頃,年產量15000噸。
三(san).產品品質特性特征
1、外在(zai)感官特征:長樂番薯薯塊呈(cheng)紡錘形,大小均勻,光滑美(mei)觀,商品(pin)薯率高;肉(rou)質細膩,纖維少,口感面(mian)、香、甜;
2、內在(zai)品(pin)質指標:長(chang)樂番薯含薯塊烘(hong)干率(lv)23-26%、薯干淀粉含量52.6-55.7g/100g、可溶性(xing)糖18.5-22.4g/100g、粗(cu)蛋白2.9-6.8g/100g、粗(cu)纖維2.5-3.9g/100g。
3、產品(pin)(pin)質量安全規(gui)定(ding):長樂(le)番薯產品(pin)(pin)質量應符合NY 5221-2005《無公害食品(pin)(pin)薯芋類蔬(shu)菜》標準。
四.特定生(sheng)產方式
1、產地(di)要求:宜選擇土(tu)(tu)質疏松肥(fei)沃的(de)壤(rang)土(tu)(tu),或土(tu)(tu)層厚、土(tu)(tu)壤(rang)疏松、通氣(qi)性好(hao)的(de)沙(sha)、壤(rang)土(tu)(tu)進行深耕(geng)曬白。采(cai)用高畦栽培,擴(kuo)大(da)根系活動范圍,增大(da)晝夜溫差,為番薯(shu)生長創造良好(hao)的(de)土(tu)(tu)壤(rang)環境。一般要求畦寬(連溝)90-110cm,畦高35cm。
2、品種(zhong)選(xuan)擇:選(xuan)用熟期早、薯(shu)塊大小均勻、薯(shu)形(xing)美觀(guan)、表皮光滑、食(shi)味好的(de)品種(zhong)。
3、生產(chan)過程管(guan)理(li)(li)與(yu)控(kong)制(zhi)技術(shu):根據長(chang)(chang)樂(le)市的(de)(de)(de)氣候(hou)(hou)特點(dian)和(he)種植(zhi)習慣,結合本品種個體長(chang)(chang)勢旺的(de)(de)(de)特點(dian),長(chang)(chang)樂(le)番薯(shu)(shu)采(cai)用(yong)(yong)(yong)小畦高壟(long),中(zhong)耕提蔓(man),施夾(jia)邊肥等當地傳(chuan)統的(de)(de)(de)栽(zai)培模式。在6月中(zhong)旬扦(qian)插,單(dan)行(xing)株距(ju)扦(qian)插適(shi)宜密度(du)4.5萬株/公(gong)頃,即(ji)株距(ju)28-33cm。一般要(yao)(yao)(yao)求畦寬(kuan)(連溝)90-110cm,畦高35cm。作(zuo)壟(long)時(shi),用(yong)(yong)(yong)腐熟(shu)有(you)機肥15t/公(gong)頃條施于壟(long)心,然后(hou)做直、做平壟(long)面,便于扦(qian)插。在插后(hou)30d,結合提藤和(he)中(zhong)耕,采(cai)用(yong)(yong)(yong)雙夾(jia)邊肥,施用(yong)(yong)(yong)復(fu)合肥40斤/畝,為(wei)(wei)(wei)塊根膨(peng)大期提供(gong)足夠的(de)(de)(de)養分。番薯(shu)(shu)的(de)(de)(de)施肥應掌(zhang)握以下(xia)原則(ze):農家肥為(wei)(wei)(wei)主(zhu),化肥為(wei)(wei)(wei)輔(fu)。基(ji)肥為(wei)(wei)(wei)主(zhu),追(zhui)肥為(wei)(wei)(wei)輔(fu)。追(zhui)肥以前(qian)期為(wei)(wei)(wei)主(zhu),后(hou)期為(wei)(wei)(wei)輔(fu)。長(chang)(chang)樂(le)番薯(shu)(shu)種植(zhi)使(shi)(shi)用(yong)(yong)(yong)農業投入(ru)品要(yao)(yao)(yao)嚴(yan)格按照 DB51/337-2003《無(wu)公(gong)害農產(chan)品農藥(yao)(yao)使(shi)(shi)用(yong)(yong)(yong)準則(ze)》、DB52/ 471-2004《無(wu)公(gong)害農產(chan)品肥料使(shi)(shi)用(yong)(yong)(yong)準則(ze)》執行(xing)。長(chang)(chang)樂(le)番薯(shu)(shu)病(bing)害主(zhu)要(yao)(yao)(yao)有(you)番薯(shu)(shu)黑斑(ban)病(bing);蟲(chong)害主(zhu)要(yao)(yao)(yao)有(you):象鼻蟲(chong)和(he)斜紋夜蛾,要(yao)(yao)(yao)以農業和(he)物理(li)(li)防治(zhi)為(wei)(wei)(wei)主(zhu),化學(xue)防治(zhi)為(wei)(wei)(wei)輔(fu),杜(du)絕使(shi)(shi)用(yong)(yong)(yong)禁用(yong)(yong)(yong)農藥(yao)(yao),控(kong)制(zhi)化學(xue)農藥(yao)(yao)使(shi)(shi)用(yong)(yong)(yong)劑量、使(shi)(shi)用(yong)(yong)(yong)次數,采(cai)用(yong)(yong)(yong)生物農藥(yao)(yao)和(he)低毒低殘留農藥(yao)(yao),嚴(yan)格執行(xing)安(an)全(quan)間隔(ge)期,確保番薯(shu)(shu)的(de)(de)(de)質(zhi)量安(an)全(quan),適(shi)時(shi)防治(zhi)并加強病(bing)蟲(chong)害的(de)(de)(de)測報,掌(zhang)握病(bing)蟲(chong)害發生動態和(he)規(gui)律,達到防治(zhi)指標時(shi),根據環(huan)境和(he)物候(hou)(hou)期適(shi)時(shi)對癥(zheng)用(yong)(yong)(yong)藥(yao)(yao)。
4、產(chan)(chan)(chan)品處理:早中熟品種9月底10月初開始(shi)(shi)收(shou)(shou)獲(huo),遲熟品種11月中旬開始(shi)(shi)收(shou)(shou)獲(huo)。最遲收(shou)(shou)獲(huo)期(qi)在降霜之前。禁止(zhi)雨(yu)天收(shou)(shou)獲(huo)。收(shou)(shou)獲(huo)時要(yao)輕挖、輕裝、輕運、輕卸(xie),防(fang)止(zhi)薯皮和(he)薯塊(kuai)碰傷(shang)。貯(zhu)存(cun)要(yao)求(qiu)溫度在10-15℃空(kong)氣相對(dui)濕度在85%-90%。貯(zhu)存(cun)場所應清潔衛生(sheng)(sheng)(sheng),做好防(fang)鼠、防(fang)毒(du)工作。同時要(yao)有保(bao)溫措(cuo)施,防(fang)止(zhi)凍傷(shang)和(he)擠壓,并注意(yi)通風散熱。5、生(sheng)(sheng)(sheng)產(chan)(chan)(chan)記(ji)錄要(yao)求(qiu):如實記(ji)錄生(sheng)(sheng)(sheng)產(chan)(chan)(chan)投入品,包括化肥農藥名稱、來(lai)源、用(yong)法、用(yong)量和(he)使用(yong),停用(yong)日(ri)期(qi);收(shou)(shou)獲(huo)日(ri)期(qi),質(zhi)量檢測情況、銷售情況、生(sheng)(sheng)(sheng)產(chan)(chan)(chan)記(ji)錄應當保(bao)在兩年(nian)以上。