一.產品介紹

在玉溪(xi)(xi)市八縣一區(qu)，這里的(de)煙(yan)葉在全(quan)省(sheng)都(dou)是最優的(de)，但大(da)部(bu)分都(dou)被(bei)紅(hong)塔集團收購了，只有很少的(de)外(wai)(wai)調(diao)到(dao)省(sheng)外(wai)(wai)。現在，紅(hong)塔集團的(de)原料(liao)基地在省(sheng)內主要(yao)有玉溪(xi)(xi)、大(da)理、楚(chu)雄、昭(zhao)通，每年收購量在500萬(wan)擔左(zuo)右，用(yong)于近500萬(wan)箱名(ming)優煙(yan)的(de)生產。來(lai)(lai)自(zi)云(yun)煙(yan)之鄉玉溪(xi)(xi)的(de)原料(liao)，是紅(hong)塔山幾十年不衰的(de)根本原因。“玉溪(xi)(xi)”煙(yan)就是全(quan)部(bu)選用(yong)玉溪(xi)(xi)煙(yan)葉來(lai)(lai)做(zuo)的(de)，所以他們說，天下煙(yan)葉在云(yun)南，云(yun)煙(yan)之鄉在玉溪(xi)(xi)。

二.自然生態環境和人文歷史因素

（1）土(tu)(tu)壤條(tiao)件：玉(yu)溪(xi)市(shi)地(di)處云貴高(gao)原西(xi)緣(yuan)，地(di)勢西(xi)北高(gao)，東(dong)南(nan)低，地(di)形復(fu)雜，山地(di)、峽谷(gu)、高(gao)原、盆(pen)地(di)交錯(cuo)分布。山區面積(ji)占(zhan)90.6%，壩區面積(ji)占(zhan)7.45%，湖泊(bo)面積(ji)占(zhan)1.95%，森(sen)林覆蓋率43.8%。最(zui)高(gao)點海拔(ba)3137米，最(zui)低點海拔(ba)327米，大(da)部分耕地(di)在海拔(ba)1500～1800米。境內(nei)土(tu)(tu)壤類型(xing)主要(yao)有紅壤、棕(zong)壤、黃(huang)棕(zong)壤、燥紅壤、赤紅壤、紫色(se)(se)土(tu)(tu)和水稻(dao)土(tu)(tu)七類，其中適宜栽種烤煙(yan)的(de)土(tu)(tu)壤類型(xing)為紅壤、紫色(se)(se)土(tu)(tu)和水稻(dao)土(tu)(tu)，占(zhan)總面積(ji)的(de)70%。玉(yu)溪(xi)市(shi)土(tu)(tu)壤立(li)地(di)條(tiao)件較(jiao)好，土(tu)(tu)層深厚，土(tu)(tu)質疏松(song)，通透性好；pH值5.5～7.5，平(ping)均(jun)5.8；有機質平(ping)均(jun)3%，速(su)效(xiao)氮平(ping)均(jun)100mg/Kg，速(su)效(xiao)磷平(ping)均(jun)12mg/Kg，速(su)效(xiao)鉀較(jiao)豐富，平(ping)均(jun)130mg/Kg；0～60cm地(di)層土(tu)(tu)壤含(han)氯量小于25mg/Kg。

（2）水(shui)(shui)(shui)文情況：全(quan)市多年(nian)(nian)平(ping)均水(shui)(shui)(shui)資(zi)源(yuan)總量(liang)(liang)為53.62億(yi)(yi)立方(fang)(不(bu)含元江和南(nan)(nan)盤江的(de)(de)過(guo)境水(shui)(shui)(shui)量(liang)(liang))，分屬紅河、珠江流(liu)(liu)域(yu)，其(qi)中地表(biao)水(shui)(shui)(shui)37.94億(yi)(yi)立方(fang)，占全(quan)市水(shui)(shui)(shui)資(zi)源(yuan)總量(liang)(liang)的(de)(de)70.8％，地下水(shui)(shui)(shui)15.68億(yi)(yi)立方(fang)，占全(quan)市水(shui)(shui)(shui)資(zi)源(yuan)總量(liang)(liang)的(de)(de)29.2％。水(shui)(shui)(shui)系(xi)發(fa)達(da)，市內河流(liu)(liu)分屬元江、南(nan)(nan)盤江兩大水(shui)(shui)(shui)系(xi)，元江水(shui)(shui)(shui)系(xi)主要支流(liu)(liu)有綠(lv)汁江、清水(shui)(shui)(shui)河、小河底(di)河、扒河等80多條，全(quan)長360公里，年(nian)(nian)徑流(liu)(liu)量(liang)(liang)7.0億(yi)(yi)立方(fang)米(mi)；南(nan)(nan)盤江水(shui)(shui)(shui)系(xi)有南(nan)(nan)盤江、曲江、海口河等17條主要河流(liu)(liu)，全(quan)長292公里，年(nian)(nian)徑流(liu)(liu)量(liang)(liang)3.8億(yi)(yi)立方(fang)米(mi)。境內有撫仙湖(hu)(hu)、星(xing)云湖(hu)(hu)、杞麓湖(hu)(hu)三個高原湖(hu)(hu)泊，總蓄水(shui)(shui)(shui)量(liang)(liang)210億(yi)(yi)立方(fang)。有水(shui)(shui)(shui)庫548座(zuo)，其(qi)中中型水(shui)(shui)(shui)庫15座(zuo)，小型水(shui)(shui)(shui)庫533座(zuo)，總庫容量(liang)(liang)6.83億(yi)(yi)立方(fang)。為確保山地烤煙(yan)抗旱(han)早栽，山區(qu)、半(ban)山區(qu)建有小水(shui)(shui)(shui)窖22萬個。全(quan)市耕地有效灌溉率(lv)75.75%。

（3）氣候(hou)條(tiao)件：玉溪市地處低緯度高(gao)原(yuan)，具有熱(re)帶(dai)(dai)、亞熱(re)帶(dai)(dai)、溫(wen)帶(dai)(dai)三種氣候(hou)類型，屬內(nei)陸(lu)高(gao)原(yuan)氣候(hou)，四(si)季(ji)(ji)溫(wen)差(cha)小，晝(zhou)夜溫(wen)差(cha)大(da)，四(si)季(ji)(ji)如春。植煙(yan)區主要集(ji)中在(zai)中亞熱(re)帶(dai)(dai)和北亞熱(re)帶(dai)(dai)，年(nian)(nian)平均(jun)氣溫(wen)16.9℃，無霜期(qi)250～300天，冬(dong)季(ji)(ji)溫(wen)而不(bu)冷，夏(xia)季(ji)(ji)暖而不(bu)熱(re)，煙(yan)區冬(dong)短無夏(xia)，春季(ji)(ji)較長，烤煙(yan)大(da)田種植中、后期(qi)溫(wen)差(cha)較小，是(shi)清(qing)香(xiang)型優質烤煙(yan)的代表(biao)產地。年(nian)(nian)降水量700～900毫(hao)米，相對濕度平均(jun)為(wei)74.5%，烤煙(yan)全生(sheng)育期(qi)雨(yu)量在(zai)550～750mm之間，雨(yu)量適(shi)中，與優質煙(yan)生(sheng)長發育的需水特性一致。年(nian)(nian)日(ri)照(zhao)時(shi)數(shu)2187小時(shi)，年(nian)(nian)均(jun)太(tai)陽輻射總量5265兆焦(jiao)耳/平方(fang)米，與全國多(duo)數(shu)煙(yan)區相比(bi)輻射量多(duo)，光(guang)照(zhao)充足，且光(guang)譜中最易被烤煙(yan)吸收利(li)用的紅光(guang)和藍(lan)紫(zi)光(guang)較多(duo)，光(guang)譜季(ji)(ji)節變化(hua)與優質煙(yan)對光(guang)的需求(qiu)配合一致，十分適(shi)宜(yi)于優質煙(yan)葉生(sheng)長。

（4）人文歷史情(qing)況：玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)葉(xie)(xie)(xie)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)歷史悠久。早在(zai)(zai)哥倫布(bu)發(fa)現(xian)美洲煙(yan)(yan)(yan)(yan)(yan)草之前(qian)，已(yi)有煙(yan)(yan)(yan)(yan)(yan)草種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)，至(zhi)今已(yi)有500多(duo)年(nian)(nian)(nian)(nian)(nian)歷史。清末，晾曬煙(yan)(yan)(yan)(yan)(yan)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)已(yi)相當(dang)(dang)(dang)普遍；民(min)(min)(min)國(guo)中期，僅通海(hai)(hai)縣(xian)就種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)9800畝(mu)(mu)。烤(kao)(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)，民(min)(min)(min)國(guo)三年(nian)(nian)(nian)(nian)(nian)（1914年(nian)(nian)(nian)(nian)(nian)）即已(yi)在(zai)(zai)紅(hong)(hong)塔區、通海(hai)(hai)兩縣(xian)試種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)72畝(mu)(mu)并(bing)獲(huo)得成(cheng)功；民(min)(min)(min)國(guo)31年(nian)(nian)(nian)(nian)(nian)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)烤(kao)(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)1311畝(mu)(mu)，收獲(huo) 煙(yan)(yan)(yan)(yan)(yan)葉(xie)(xie)(xie)4.7萬(wan)千克(ke)；民(min)(min)(min)國(guo)32年(nian)(nian)(nian)(nian)(nian)，擴(kuo)(kuo)大(da)(da)(da)到(dao)江川、易門(men)；至(zhi)民(min)(min)(min)國(guo)34年(nian)(nian)(nian)(nian)(nian)，累計(ji)(ji)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)面(mian)(mian)積(ji)2.71萬(wan)畝(mu)(mu)；民(min)(min)(min)國(guo)35年(nian)(nian)(nian)(nian)(nian)，擴(kuo)(kuo)大(da)(da)(da)至(zhi)新(xin)平(ping)等(deng)縣(xian)；民(min)(min)(min)國(guo)38年(nian)(nian)(nian)(nian)(nian)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)面(mian)(mian)積(ji)達3.1萬(wan)畝(mu)(mu)，種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)面(mian)(mian)積(ji)和產(chan)(chan)(chan)量(liang)占(zhan)全(quan)省的(de)(de)80%以上。新(xin)中國(guo)成(cheng)立后(hou)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)晾曬煙(yan)(yan)(yan)(yan)(yan)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)和加(jia)工逐漸減少，烤(kao)(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)逐漸增加(jia)。1951年(nian)(nian)(nian)(nian)(nian)，政府將烤(kao)(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)列入(ru)計(ji)(ji)劃生(sheng)產(chan)(chan)(chan)，當(dang)(dang)(dang)年(nian)(nian)(nian)(nian)(nian)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)4.3萬(wan)畝(mu)(mu)，總(zong)產(chan)(chan)(chan)量(liang)300萬(wan)千克(ke)。由于(yu)玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)葉(xie)(xie)(xie)色澤橙(cheng)黃、富油潤(run)、味(wei)醇(chun)和，在(zai)(zai)1953年(nian)(nian)(nian)(nian)(nian)河南許(xu)昌召開的(de)(de)烤(kao)(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)質(zhi)量(liang)評比會(hui)上，玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)葉(xie)(xie)(xie)評分108分，名列全(quan)國(guo)之首，成(cheng)為(wei)熊(xiong)貓、中華(hua)等(deng)高級香(xiang)煙(yan)(yan)(yan)(yan)(yan)的(de)(de)主(zhu)(zhu)要(yao)(yao)配方(fang)原料。改革開放之前(qian)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)葉(xie)(xie)(xie)在(zai)(zai)曲折中發(fa)展(zhan)(zhan)，1978年(nian)(nian)(nian)(nian)(nian)，種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)面(mian)(mian)積(ji)15.15萬(wan)畝(mu)(mu)，總(zong)產(chan)(chan)(chan)量(liang)1624萬(wan)千克(ke)。1992年(nian)(nian)(nian)(nian)(nian)，種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)面(mian)(mian)積(ji)52.8萬(wan)畝(mu)(mu)，收購量(liang)8201萬(wan)千克(ke)。進(jin)入(ru)新(xin)世紀后(hou)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)草快速發(fa)展(zhan)(zhan)，2009年(nian)(nian)(nian)(nian)(nian)，全(quan)市烤(kao)(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)面(mian)(mian)積(ji)70萬(wan)畝(mu)(mu)、產(chan)(chan)(chan)量(liang)10400萬(wan)千克(ke)，產(chan)(chan)(chan)值16億元(yuan)。烤(kao)(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)成(cheng)為(wei)當(dang)(dang)(dang)地農(nong)民(min)(min)(min)最大(da)(da)(da)的(de)(de)經(jing)濟來源(yuan)。同時(shi)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)葉(xie)(xie)(xie)是紅(hong)(hong)塔煙(yan)(yan)(yan)(yan)(yan)草（集(ji)團）有限責任公司生(sheng)產(chan)(chan)(chan)中高檔中式卷煙(yan)(yan)(yan)(yan)(yan)的(de)(de)主(zhu)(zhu)要(yao)(yao)原料，伴隨“紅(hong)(hong)塔山”卷煙(yan)(yan)(yan)(yan)(yan)品(pin)(pin)(pin)牌的(de)(de)發(fa)展(zhan)(zhan)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)葉(xie)(xie)(xie)香(xiang)飄四海(hai)(hai)。玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)葉(xie)(xie)(xie)主(zhu)(zhu)栽品(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)為(wei)K326、紅(hong)(hong)花大(da)(da)(da)金元(yuan)。民(min)(min)(min)國(guo)35年(nian)(nian)(nian)(nian)(nian)（1946年(nian)(nian)(nian)(nian)(nian)），玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)草改進(jin)所(suo)從美國(guo)引(yin)進(jin)“大(da)(da)(da)金元(yuan)”品(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)，之后(hou)在(zai)(zai)全(quan)市推廣(guang)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)。1953年(nian)(nian)(nian)(nian)(nian)后(hou)，在(zai)(zai)玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)農(nong)和科(ke)技人員(yuan)的(de)(de)共同努力下(xia)，培育了多(duo)個多(duo)葉(xie)(xie)(xie)煙(yan)(yan)(yan)(yan)(yan)類型的(de)(de)大(da)(da)(da)金元(yuan)衍生(sheng)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)。1968年(nian)(nian)(nian)(nian)(nian)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)專區煙(yan)(yan)(yan)(yan)(yan)葉(xie)(xie)(xie)調拔站等(deng)單位，從石(shi)林(lin)縣(xian)路美邑村(cun)引(yin)進(jin)“紅(hong)(hong)花大(da)(da)(da)金元(yuan)”，經(jing)對比試驗，定向選育和馴化，該品(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)逐步成(cheng)為(wei)玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)葉(xie)(xie)(xie)的(de)(de)當(dang)(dang)(dang)家品(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)，目(mu)前(qian)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)面(mian)(mian)積(ji)達10萬(wan)畝(mu)(mu)，產(chan)(chan)(chan)量(liang)1000萬(wan)千克(ke)。1987年(nian)(nian)(nian)(nian)(nian)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)地區煙(yan)(yan)(yan)(yan)(yan)草公司煙(yan)(yan)(yan)(yan)(yan)科(ke)所(suo)引(yin)進(jin)美國(guo)烤(kao)(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)主(zhu)(zhu)要(yao)(yao)推廣(guang)品(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)K326，在(zai)(zai)全(quan)市進(jin)行多(duo)點試種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)、篩選，經(jing)過多(duo)年(nian)(nian)(nian)(nian)(nian)選育、馴化、改良(liang)，由于(yu)其具有優質(zhi)、適產(chan)(chan)(chan)、適應性廣(guang)等(deng)優點，種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)面(mian)(mian)積(ji)擴(kuo)(kuo)展(zhan)(zhan)迅速，目(mu)前(qian)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)面(mian)(mian)積(ji)達50萬(wan)畝(mu)(mu)，產(chan)(chan)(chan)量(liang)7800萬(wan)千克(ke)，成(cheng)為(wei)玉(yu)(yu)(yu)(yu)溪(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)葉(xie)(xie)(xie)的(de)(de)主(zhu)(zhu)要(yao)(yao)栽培品(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)。

三.地域范圍

玉溪市(shi)位于(yu)云南(nan)省中(zhong)部，北(bei)緯23°19′～24°53′、東(dong)經(jing)101°16′～103°09′之間，南(nan)北(bei)長163.5公里，東(dong)西(xi)寬172公里。東(dong)北(bei)接(jie)昆明(ming)市(shi)，東(dong)南(nan)鄰紅河州(zhou)，西(xi)南(nan)連普洱市(shi)，西(xi)北(bei)靠楚(chu)雄(xiong)州(zhou)。全市(shi)轄(xia)紅塔區(qu)、江川(chuan)縣(xian)(xian)、澄江市(shi)、通海(hai)縣(xian)(xian)、華寧縣(xian)(xian)、易門(men)縣(xian)(xian)、峨(e)山縣(xian)(xian)、新平(ping)縣(xian)(xian)、元(yuan)江縣(xian)(xian)等一(yi)區(qu)八縣(xian)(xian)，共設80個(ge)鄉(xiang)鎮、辦事處，657個(ge)村、居民(min)委(wei)員會，國(guo)(guo)土(tu)面積(ji)15285萬(wan)平(ping)方公里。 玉溪煙(yan)葉(xie)農產品地(di)(di)理標志(zhi)地(di)(di)保護范圍(wei)為玉溪市(shi)一(yi)區(qu)八縣(xian)(xian)海(hai)拔1300～1900米之間的平(ping)壩(ba)、低中(zhong)山地(di)(di)帶和(he)(he)中(zhong)山地(di)(di)帶，共計68個(ge)鄉(xiang)鎮，保護面積(ji)260萬(wan)畝，其中(zhong)50畝連片(pian)的面積(ji)有(you)236萬(wan)畝，年生產能力(li)300萬(wan)擔。玉溪市(shi)是我國(guo)(guo)的優質煙(yan)葉(xie)主產區(qu)和(he)(he)中(zhong)式中(zhong)高檔卷煙(yan)的主要原料(liao)基地(di)(di)，也(ye)是國(guo)(guo)內最(zui)具開發(fa)價值的優質烤煙(yan)核心(xin)產地(di)(di)，被譽(yu)為“云煙(yan)之鄉(xiang)”。

四.產品品質特性特征

1、外在感官特征：1.1、鮮(xian)煙(yan)(yan)葉(xie)(xie)(xie)(xie)。株(zhu)高適(shi)中，有效(xiao)葉(xie)(xie)(xie)(xie)片(pian)(pian)多，單葉(xie)(xie)(xie)(xie)較重(zhong)。煙(yan)(yan)株(zhu)進入(ru)成熟期后，整株(zhu)葉(xie)(xie)(xie)(xie)片(pian)(pian)由下而上逐漸為綠黃(huang)色(se)(se)或黃(huang)綠色(se)(se)，分(fen)層落黃(huang)明顯，易把握成熟度(du)和便于(yu)適(shi)時采(cai)摘(zhai)烘烤調制。玉溪(xi)煙(yan)(yan)葉(xie)(xie)(xie)(xie)株(zhu)高90-120cm，有效(xiao)葉(xie)(xie)(xie)(xie)片(pian)(pian)因品種不(bu)同稍有差異：“紅(hong)花大(da)金(jin)元”16-20片(pian)(pian)，“K326”18-22片(pian)(pian)。葉(xie)(xie)(xie)(xie)片(pian)(pian)大(da)小：下、中、上部(bu)(bu)位略有差異：一般下部(bu)(bu)葉(xie)(xie)(xie)(xie)長55-65cm，寬25-35cm，葉(xie)(xie)(xie)(xie)厚(hou)220-280μm ；中部(bu)(bu)葉(xie)(xie)(xie)(xie)長65-75cm，寬23-30cm，葉(xie)(xie)(xie)(xie)厚(hou)270-330μm ；上部(bu)(bu)葉(xie)(xie)(xie)(xie)長50-60cm，寬16-22cm，葉(xie)(xie)(xie)(xie)厚(hou)300-350μm 。1.2、烤煙(yan)(yan)。外觀質量符合(he)GB2635中正組煙(yan)(yan)的要求，葉(xie)(xie)(xie)(xie)片(pian)(pian)成熟，顏色(se)(se)金(jin)黃(huang)至桔(jie)黃(huang)，以桔(jie)黃(huang)為主；色(se)(se)度(du)飽和，厚(hou)薄適(shi)中，富油潤(run)；葉(xie)(xie)(xie)(xie)片(pian)(pian)組織結構疏(shu)松、柔軟、彈(dan)性好。單葉(xie)(xie)(xie)(xie)重(zhong)：下部(bu)(bu)葉(xie)(xie)(xie)(xie)6-8g，中部(bu)(bu)葉(xie)(xie)(xie)(xie)8-10g，上部(bu)(bu)葉(xie)(xie)(xie)(xie)7-9g。

2、內(nei)在品質(zhi)：指標(biao)玉(yu)溪煙(yan)葉(xie)內(nei)含化學成份協調，總糖、還原糖比國內(nei)其它煙(yan)區(qu)高而具特色，具有(you)清新飄逸、清甜優雅、豐富飽滿、圓潤細膩的(de)風(feng)格特征，刺激較小、雜(za)氣輕、回(hui)味舒適、生津回(hui)甜，燃燒較好，與國內(nei)外產(chan)區(qu)煙(yan)葉(xie)有(you)良好的(de)配伍性，工業可用性高，是中式中、高檔卷(juan)煙(yan)的(de)必備原料。

3、安全要求：農(nong)藥殘留：符合《DB53/T182.2-2006 玉溪(xi)優質(zhi)烤(kao)煙(yan)質(zhi)量要求》的規定。