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基本介紹

青荷藕表皮藕銹少(shao)、白(bai)嫩、光澤(ze)度(du)好，肉質細膩、清脆爽(shuang)口(kou)、甘甜無渣；黃熟藕淀粉(fen)(fen)含量高(gao)，熟食(shi)粉(fen)(fen)糯(nuo)香甜。

長(chang)興(xing)縣地(di)(di)質(zhi)構造復雜(za)，境內地(di)(di)層(ceng)從志留系(xi)（除三系(xi)）至第(di)四系(xi)均有出露。呂(lv)山鄉(xiang)位于長(chang)興(xing)縣東(dong)南部平原(yuan)?區，為浙北低(di)山丘陵向太(tai)湖西(xi)岸平原(yuan)過(guo)渡的區域，地(di)(di)勢東(dong)低(di)西(xi)高(gao)，屬水網平原(yuan)地(di)(di)貌,全鄉(xiang)總(zong)面積3850公頃，下轄9個行政村(cun)，耕地(di)(di)1758公頃，塘(tang)面459公頃，桑(sang)地(di)(di)288公頃，物(wu)產(chan)豐(feng)富(fu)，素有“魚米之(zhi)鄉(xiang)”之(zhi)稱(cheng)，也是(shi)久負盛名(ming)的“水產(chan)之(zhi)鄉(xiang)、蠶桑(sang)之(zhi)鄉(xiang)”。

地域產地

胥倉(cang)雪藕(ou)農(nong)產品地理標(biao)志地域保護范(fan)圍(wei)為(wei)：長興縣呂山(shan)鄉，轄呂山(shan)、楊吳、呂虹(hong)、土斗門、雁陶、金村、南楊、胥倉(cang)、龍(long)溪(xi)9個(ge)行政村。地理坐標(biao)為(wei)東經119°53′7.61″～119°57′52.93″，北緯30°52′8.28″～30°56′6.65″間。保護區域面(mian)積(ji)3850公頃，其中蓮(lian)藕(ou)面(mian)積(ji)267公頃，年產量(liang)6000噸(dun)。

品質特點

青荷藕表皮藕銹少(shao)、白嫩、光澤度好，肉質(zhi)細膩、清脆(cui)爽口、甘甜(tian)無渣；黃熟(shu)藕淀粉(fen)含(han)(han)(han)量(liang)高，熟(shu)食粉(fen)糯(nuo)香甜(tian)。青荷藕淀粉(fen)含(han)(han)(han)量(liang)大(da)于1.0 g/100g，總糖含(han)(han)(han)量(liang)大(da)于3.0g/100g，粗纖維含(han)(han)(han)量(liang)小(xiao)于1%，氨基酸總量(liang)大(da)于0.6%。生產(chan)、貯運、銷(xiao)售過程(cheng)中，應嚴格(ge)執行“雙塘雪藕栽培技(ji)術規程(cheng)”浙江(jiang)省湖州市地方標(biao)準，確保產(chan)品質(zhi)量(liang)安全，并做好生產(chan)、銷(xiao)售等相關記(ji)錄(lu)。

生產情況

胥倉雪藕(ou)栽培的(de)環境技(ji)術條件應符(fu)合(he)NY/T5010要(yao)(yao)求。選擇(ze)水(shui)(shui)源充足(zu)、水(shui)(shui)流緩慢、漲落平穩、排灌便利、保(bao)水(shui)(shui)性好(hao)、保(bao)肥(fei)性強(qiang)的(de)藕(ou)塘(tang)，耕作(zuo)(zuo)層深(shen)(shen)度(du)≥40cm，pH值5.5～7.5。品種(zhong)(zhong)(zhong)選擇(ze)：胥倉雪藕(ou)主(zhu)要(yao)(yao)品種(zhong)(zhong)(zhong)為(wei)‘浙湖一號(hao)’、‘飄花’、‘鄂蓮6號(hao)’。定(ding)植(zhi)(zhi)時(shi)(shi)(shi)間：清明(ming)前(qian)后(hou)(hou)日平均氣溫(wen)升到13℃左右時(shi)(shi)(shi)開(kai)始(shi)種(zhong)(zhong)(zhong)植(zhi)(zhi)。藕(ou)塘(tang)準備：種(zhong)(zhong)(zhong)植(zhi)(zhi)前(qian)1～2天耖耙(pa)，平整土(tu)壤(rang)。一般(ban)魚塘(tang)種(zhong)(zhong)(zhong)植(zhi)(zhi)蓮藕(ou)第一年可不施(shi)基肥(fei)，新(xin)開(kai)塘(tang)、連作(zuo)(zuo)藕(ou)塘(tang)施(shi)用(yong)(yong)(yong)有機肥(fei)料作(zuo)(zuo)基肥(fei)，每畝(mu)施(shi)用(yong)(yong)(yong)腐熟(shu)農(nong)(nong)家肥(fei)1500kg～2000kg和復(fu)合(he)肥(fei)30kg～50kg。種(zhong)(zhong)(zhong)藕(ou)選擇(ze)：選用(yong)(yong)(yong)頂(ding)芽完(wan)整，具有2～3個完(wan)整的(de)藕(ou)節(jie)(jie)、無(wu)病斑(ban)(ban)，無(wu)機械損傷的(de)子藕(ou)作(zuo)(zuo)種(zhong)(zhong)(zhong)藕(ou)。定(ding)植(zhi)(zhi)方(fang)(fang)法(fa)：排種(zhong)(zhong)(zhong)前(qian)保(bao)持淺水(shui)(shui)3cm～5cm，斜(xie)植(zhi)(zhi)，栽植(zhi)(zhi)深(shen)(shen)度(du)10cm～20cm，藕(ou)頭向下呈20°～30°傾斜(xie)，后(hou)(hou)節(jie)(jie)略翹(qiao)起。定(ding)植(zhi)(zhi)密度(du)：因栽培條件和品種(zhong)(zhong)(zhong)而異。早熟(shu)品種(zhong)(zhong)(zhong)宜(yi)密植(zhi)(zhi)，中晚熟(shu)品種(zhong)(zhong)(zhong)宜(yi)稀。一般(ban)行(xing)株(zhu)距1.5m×1.5m，每穴栽1支或2支。肥(fei)水(shui)(shui)管理(li)：立(li)葉抽(chou)生初(chu)期，每畝(mu)施(shi)尿素10kg～15kg；結(jie)藕(ou)初(chu)期，每畝(mu)施(shi)復(fu)合(he)肥(fei)20kg～30kg。封(feng)行(xing)前(qian)，保(bao)持淺水(shui)(shui)10cm～15cm,提高土(tu)溫(wen)，促進萌發；隨著(zhu)氣溫(wen)升高，蓮藕(ou)發生分枝、出現立(li)葉，逐漸(jian)加深(shen)(shen)水(shui)(shui)位至20cm～35cm；展葉后(hou)(hou)至結(jie)藕(ou)前(qian)，水(shui)(shui)位加深(shen)(shen)至80cm；結(jie)藕(ou)時(shi)(shi)(shi)水(shui)(shui)位適當放淺，促進蓮藕(ou)膨大。采(cai)(cai)收：宜(yi)在主(zhu)藕(ou)形成2～3個膨大藕(ou)節(jie)(jie)時(shi)(shi)(shi)開(kai)始(shi)采(cai)(cai)收嫩藕(ou)，葉片黃熟(shu)后(hou)(hou)采(cai)(cai)收老熟(shu)藕(ou)，一直(zhi)可采(cai)(cai)收到翌年春季(ji)萌芽前(qian)。主(zhu)要(yao)(yao)病蟲(chong)：主(zhu)要(yao)(yao)病害(hai)(hai)有褐(he)斑(ban)(ban)病、腐敗(bai)病等(deng)，主(zhu)要(yao)(yao)害(hai)(hai)蟲(chong)有蓮縊管蚜、斜(xie)紋夜(ye)蛾、福壽螺等(deng)。防(fang)治原則：遵(zun)循“預防(fang)為(wei)主(zhu)，綜合(he)防(fang)治”的(de)植(zhi)(zhi)保(bao)方(fang)(fang)針(zhen)，優先采(cai)(cai)用(yong)(yong)(yong)農(nong)(nong)業防(fang)治、物理(li)防(fang)治、生物防(fang)治，科學(xue)使用(yong)(yong)(yong)高效低(di)毒低(di)殘留化學(xue)農(nong)(nong)藥。農(nong)(nong)業防(fang)治：采(cai)(cai)用(yong)(yong)(yong)無(wu)病種(zhong)(zhong)(zhong)藕(ou)，及時(shi)(shi)(shi)清園消毒，合(he)理(li)輪(lun)作(zuo)(zuo)，選用(yong)(yong)(yong)無(wu)病種(zhong)(zhong)(zhong)藕(ou)等(deng)。殺蟲(chong)燈誘(you)(you)(you)殺：用(yong)(yong)(yong)殺蟲(chong)燈誘(you)(you)(you)殺斜(xie)紋夜(ye)蛾等(deng)害(hai)(hai)蟲(chong)。性誘(you)(you)(you)劑誘(you)(you)(you)捕(bu)：將斜(xie)紋夜(ye)蛾性信息素（性誘(you)(you)(you)劑）放置于誘(you)(you)(you)捕(bu)器中，誘(you)(you)(you)捕(bu)器懸(xuan)掛(gua)在植(zhi)(zhi)株(zhu)上方(fang)(fang)25cm～30cm處(chu)，每畝(mu)放置誘(you)(you)(you)捕(bu)器1～2個。藥劑防(fang)治：農(nong)(nong)藥使用(yong)(yong)(yong)應符(fu)合(he)GB/T8321、NY/T1276要(yao)(yao)求。優先使用(yong)(yong)(yong)生物農(nong)(nong)藥，輪(lun)換選用(yong)(yong)(yong)高效、低(di)毒、低(di)殘留的(de)農(nong)(nong)藥，禁止(zhi)使用(yong)(yong)(yong)國家明(ming)令禁止(zhi)使用(yong)(yong)(yong)的(de)農(nong)(nong)藥和高毒、劇毒、高殘留的(de)農(nong)(nong)藥。