沁(qin)源(yuan)綿黃(huang)(huang)(huang)芪(qi)根呈圓柱形,有(you)的(de)有(you)分(fen)枝(zhi),上(shang)端較(jiao)粗且中(zhong)心偶呈枯朽狀或黑褐色(se),長(chang)50~90 cm,直徑1~3.5 cm,表面(mian)淡棕(zong)黃(huang)(huang)(huang)色(se),有(you)不整齊的(de)縱(zong)皺紋或縱(zong)溝,質(zhi)柔(rou)韌,不易折斷(duan)(duan),斷(duan)(duan)面(mian)纖維(wei)性(xing)強,并(bing)具粉(fen)性(xing),皮部黃(huang)(huang)(huang)白色(se),木部淡黃(huang)(huang)(huang)色(se),有(you)有(you)放射狀紋理及裂隙,氣(qi)微,味(wei)微甜,嚼之有(you)豆腥(xing)味(wei)。以條長(chang)、質(zhi)柔(rou)、粉(fen)性(xing)足(zu)、豆腥(xing)味(wei)濃為(wei)主要特征。
山西省(sheng)長治市(shi)沁源縣,轄沁河鎮、郭道鎮、靈空(kong)山鎮、王和(he)鎮、李元鎮、中峪(yu)鄉(xiang)(xiang)、法(fa)中鄉(xiang)(xiang)、交口(kou)鄉(xiang)(xiang)、聰子峪(yu)鄉(xiang)(xiang)、韓洪鄉(xiang)(xiang)、官灘鄉(xiang)(xiang)、景鳳鄉(xiang)(xiang)、赤石橋鄉(xiang)(xiang)、王陶(tao)鄉(xiang)(xiang)、沁源經濟技(ji)術開發(fa)區,共計5個(ge)(ge)鎮、9個(ge)(ge)鄉(xiang)(xiang),1個(ge)(ge)開發(fa)區。
外在感官特征
沁源(yuan)綿(mian)黃芪根呈(cheng)圓柱(zhu)形,有(you)的有(you)分枝,上(shang)端較粗且中(zhong)心偶(ou)呈(cheng)枯朽狀或黑褐色(se)(se),表(biao)面淡(dan)棕黃色(se)(se),有(you)不整齊的縱皺紋(wen)或縱溝,質柔韌,不易折(zhe)斷,斷面纖維性強,并具粉性,皮部(bu)黃白色(se)(se),木部(bu)淡(dan)黃色(se)(se),有(you)有(you)放射狀紋(wen)理及裂隙,氣(qi)微(wei),味(wei)微(wei)甜,嚼之有(you)豆腥味(wei)。以條長、質柔、粉性足、豆腥味(wei)濃為主要特(te)征。
內在品質指標
黃(huang)芪甲苷(gan)(C41H68O14)≥0.230%,毛蕊異黃(huang)酮葡萄糖苷(gan)(C22H22O10)≥0.020%。(均以干(gan)燥品計)。
土壤地貌情況
沁源縣境屬黃土(tu)(tu)高原區,地理單元(yuan)屬沁水盆地西(xi)部隆(long)起區太岳(yue)山(shan)系(xi)主脈,西(xi)北(bei)隆(long)起,東南傾低(di),海拔(ba)900~2500 m,平均(jun)海拔(ba)1400 m左右(you)。境內山(shan)巒(luan)起伏,迭(die)彩(cai)翠嶺,山(shan)地、丘陵占總面積的95.7%,土(tu)(tu)壤(rang)以富(fu)含腐殖質沙質壤(rang)土(tu)(tu)為主,土(tu)(tu)質呈(cheng)酸性,背坡迎風,土(tu)(tu)壤(rang)濕(shi)潤,對(dui)綿黃芪生長提高品(pin)質和(he)增加(jia)產(chan)量有(you)利。
水文情況
沁源縣(xian)水(shui)(shui)系(xi)以才子(zi)平山嶺(ling)為分水(shui)(shui)嶺(ling),其北的(de)王風河(he)(he)和(he)王淘河(he)(he)于(yu)古(gu)塞匯成(cheng)龍鳳(feng)河(he)(he)向西(xi)注入汾河(he)(he)屬(shu)(shu)(shu)汾河(he)(he)水(shui)(shui)系(xi),其南有(you)(you)沁河(he)(he)及其支(zhi)流聰子(zi)河(he)(he)和(he)紫(zi)紅河(he)(he),屬(shu)(shu)(shu)沁河(he)(he)水(shui)(shui)系(xi),兩者均屬(shu)(shu)(shu)黃河(he)(he)支(zhi)流,年平均降雨量656.7 mm,春季易旱,秋季多雨,與黃芪喜溫、耐寒,耐旱、怕(pa)澇等(deng)生(sheng)物(wu)學特性吻合度高,有(you)(you)利(li)于(yu)黃芪苷、浸出物(wu)等(deng)有(you)(you)效成(cheng)分積(ji)累。
氣候情況
沁源縣屬暖溫(wen)(wen)帶大陸性季風(feng)氣(qi)候(hou)區,氣(qi)候(hou)溫(wen)(wen)和,空氣(qi)濕(shi)潤,平(ping)均(jun)溫(wen)(wen)度8.6℃,年相對濕(shi)度平(ping)均(jun)65%,年均(jun)氣(qi)溫(wen)(wen)8.7℃,無霜(shuang)期90~150天,年平(ping)均(jun)日(ri)照時數2519小時,氣(qi)候(hou)冷(leng)涼、光照充足(zu)、晝夜溫(wen)(wen)差大,適(shi)宜綿(mian)黃芪(qi)生長發育,生產(chan)出的綿(mian)黃芪(qi)色鮮質優。
產地(di)(di)周(zhou)圍應當無污染源,遠離(li)市區,環境(jing)應當符(fu)合(he)國家標準。 綿黃芪為深根性植物(wu),選(xuan)(xuan)擇地(di)(di)勢高燥,排水良好,疏松(song)而肥沃的沙(sha)壤土(tu),背風向陽的山(shan)坡(po)或荒地(di)(di)栽種。選(xuan)(xuan)地(di)(di)后進行整地(di)(di),深耕30cm~45cm,結(jie)合(he)翻地(di)(di)施基肥,注(zhu)意(yi)土(tu)壤保墑,耙細整平(ping),作畦或打壟(long)。
選地與整地
選擇(ze)土層深厚疏松(song)、排水(shui)良好、陽光充足的(de)地(di)塊。秋、冬季翻地(di),整(zheng)(zheng)地(di)要深翻30~40 cm,并結合翻地(di)施足基肥(fei)(fei),耙細整(zheng)(zheng)平(ping)。每畝施有機肥(fei)(fei)或腐熟(shu)的(de)農家肥(fei)(fei)2500~3O00 kg、過(guo)磷酸(suan)鈣25~30 kg。
種子處理
選取當年采收的(de)(de)、無蟲蛀或(huo)(huo)病變的(de)(de)、種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)皮黃(huang)褐色(se)或(huo)(huo)棕黑(hei)色(se)、種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)仁(ren)飽滿(剝(bo)開種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)皮可見自色(se)的(de)(de)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)仁(ren))的(de)(de)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi),進行催芽處理。 溫湯(tang)浸種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong):將(jiang)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi)放人水(shui)溫40℃的(de)(de)水(shui)中浸泡2 h,將(jiang)水(shui)倒(dao)出,種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi)加覆蓋物燜8~12 h,待種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi)膨大或(huo)(huo)外皮破裂時(shi),可拌(ban)(ban)土播種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)。機械處理:將(jiang)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi)置于石碾(nian)上,放厚些(xie),快速碾(nian)數遍,待種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi)碾(nian)至外皮由棕黑(hei)色(se)變為灰(hui)棕色(se)時(shi)即可播種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)。或(huo)(huo)將(jiang)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)子(zi)拌(ban)(ban)入2倍的(de)(de)細砂揉搓,種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)皮擦傷即可帶(dai)砂播種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)。
播種
以(yi)春播(bo)為主,氣溫穩定在5℃以(yi)上時,于(yu)4月中旬至5月上旬進(jin)行,分穴播(bo)、條播(bo)和撒播(bo),播(bo)種深度2.5~3 cm,每(mei)畝播(bo)種量2.5~3 kg。穴播(bo)按行距(ju)33 cm、穴距(ju)27 cm挖淺(qian)穴;條播(bo)按行距(ju)15 cm開淺(qian)溝(gou),溝(gou)深1 cm,將種子均勻撒于(yu)溝(gou)內,覆(fu)土約1 cm稍加(jia)鎮壓即可。
田間管理
中耕(geng)除草(cao)(cao):苗(miao)出齊(qi)后即可(ke)松(song)土除草(cao)(cao),一般(ban)進行(xing)2~3次。當苗(miao)高7~10 cm時進行(xing)疏苗(miao),按15~20 cm株距(ju)定苗(miao)。以后每年(nian)于(yu)生(sheng)(sheng)長(chang)(chang)期(qi)視土壤板結和雜草(cao)(cao)長(chang)(chang)勢,進行(xing)松(song)土除草(cao)(cao)。 肥水(shui):播(bo)種1~2年(nian)生(sheng)(sheng)綿黃芪生(sheng)(sheng)長(chang)(chang)旺(wang)盛,根(gen)部(bu)發(fa)育較快(kuai),可(ke)結合(he)中耕(geng)除草(cao)(cao)適(shi)當追施(shi)磷鉀(jia)肥料。出苗(miao)和返青期(qi)需水(shui)分較多,如(ru)遇干旱(han),應及時進行(xing)灌水(shui);雨季濕度過大(da),易導致根(gen)部(bu)腐爛,造成幼苗(miao)死亡,期(qi)間應注意排水(shui),充分降低土壤濕度,以利根(gen)部(bu)正常生(sheng)(sheng)長(chang)(chang)。
病蟲害防治
常見(jian)(jian)病(bing)(bing)害有(you)(you)白(bai)粉病(bing)(bing)、白(bai)絹(juan)病(bing)(bing)、根結線(xian)蟲病(bing)(bing)、枯(ku)萎病(bing)(bing)、銹病(bing)(bing)、紫(zi)紋(wen)羽病(bing)(bing)等,常見(jian)(jian)的蟲害有(you)(you)食(shi)心(xin)蟲、芫菁(jing)、蚜(ya)蟲等。堅持“預防(fang)(fang)為主(zhu),綜合防(fang)(fang)治(zhi)”的原(yuan)則(ze),采(cai)用(yong)農業防(fang)(fang)治(zhi)措施、生(sheng)物防(fang)(fang)治(zhi)和(he)化學(xue)防(fang)(fang)治(zhi)相結合,做(zuo)好病(bing)(bing)蟲害的預測預報和(he)藥效試驗,提高防(fang)(fang)治(zhi)效果,禁止使用(yong)國家禁用(yong)農藥。收(shou)獲前30天(tian)禁止使用(yong)化學(xue)農藥。
產品收獲及(ji)產后處(chu)理的規定 黃芪(qi)生長3~4年即可(ke)采收。秋末采挖(wa)(wa)的質(zhi)量優于(yu)春(chun)季采挖(wa)(wa)的,一(yi)般在10~11月間地上部枯萎后采挖(wa)(wa)。
應在晴天進(jin)行(xing),挖時必須挖深(shen),以防(fang)把根弄斷或損傷外皮,降低產(chan)品質量。
根(gen)(gen)挖出(chu)后除去泥土等雜質,去除病、爛根(gen)(gen),趁鮮剪掉殘莖、須根(gen)(gen),在自然(ran)陽光下晾曬,曬至半干時將根(gen)(gen)理直(zhi),依據長度和粗度分(fen)(fen)類捆成小捆,曬至全干后,分(fen)(fen)級。
選用不易破損、干燥、清(qing)潔、無異味及(ji)不影(ying)響黃芪(qi)品質(zhi)的包裝袋進行包裝。
包裝袋應有保證(zheng)記(ji)錄:品(pin)名、批號、規(gui)格、重(zhong)量、產地、采收日期等。貯存(cun)于倉庫干(gan)燥處,溫度30℃以下(xia),相對濕度70%~75%。
運輸(shu)(shu)時不能與其他有毒、有害物(wu)質混裝,運輸(shu)(shu)工具必須清(qing)潔(jie)、干燥、無異(yi)味、無污(wu)染。