一.產品介紹
坂(ban)(ban)里(li)龍柚(you)是(shi)優(you)質、早熟的柚(you)子(zi)品(pin)種,果(guo)(guo)實(shi)成熟期一(yi)般在9月上中旬,中秋節前上市(shi)。坂(ban)(ban)里(li)龍柚(you)果(guo)(guo)實(shi)扁圓形(xing)(xing),果(guo)(guo)形(xing)(xing)指(zhi)數(shu)(shu)0.74,果(guo)(guo)肩微傾斜,果(guo)(guo)頂(ding)(ding)微凹(ao)陷(xian),果(guo)(guo)表為黃(huang)綠色,果(guo)(guo)皮厚1.3厘米左右,囊瓣短梳形(xing)(xing),果(guo)(guo)肉與囊瓣易剝離(li),果(guo)(guo)肉汁多、色白(bai)微黃(huang),質地(di)脆嫩(nen)化渣(zha),酸(suan)甜適度,香(xiang)氣濃(nong)郁,單果(guo)(guo)重(zhong)1公斤(jin)左右,種子(zi)數(shu)(shu)多,可(ke)食率56%,可(ke)溶性固(gu)形(xing)(xing)物10.7%,每100毫(hao)升果(guo)(guo)汁含可(ke)滴定(ding)酸(suan) 0.6克,維生(sheng)素c30毫(hao)克左右。風味獨特,品(pin)質優(you)良(liang)。 長(chang)泰(tai)栽(zai)培(pei)(pei)柚(you)子(zi),歷史悠久,自南唐保大十三(san)年(nian)(公元955年(nian))建(jian)縣以后,曾有(you)七次修志,查(cha)今存三(san)部完整的和兩(liang)部殘缺的《長(chang)泰(tai)縣志》版本中,均有(you)關(guan)于“柚(you)子(zi)”的記(ji)(ji)載(zai)(zai)。坂(ban)(ban)里(li)鄉地(di)處(chu)長(chang)泰(tai)縣西北部,獨特的地(di)形(xing)(xing)地(di)貌和傳統栽(zai)培(pei)(pei)管理(li)技術造就坂(ban)(ban)里(li)柚(you)子(zi)獨特的品(pin)質。據《閩產(chan)錄異》記(ji)(ji)載(zai)(zai),長(chang)泰(tai)高田(層(ceng))有(you)名“蜜柚(you)”者(zhe),僅三(san)株,其(qi)(qi)實(shi)大于“文(wen)旦”、“猴(hou)相”而(er)頂(ding)(ding)突起,每實(shi)重(zhong)二(er)斤(jin)余,肉白(bai),味甘爽,無渣(zha)滓,柚(you)中之極(ji)品(pin)。防產(chan)缺,不(bu)敢(gan)入貢。花時,有(you)力(li)者(zhe)出值貨其(qi)(qi)全樹(shu);每番鏹一(yi)員得二(er)枚。漳(zhang)之貴人有(you)終身不(bu)得嘗者(zhe)。以上記(ji)(ji)載(zai)(zai)說明(ming)坂(ban)(ban)里(li)種植的柚(you)子(zi)在長(chang)泰(tai)縣品(pin)質最佳。
二.自(zi)然生態環境和人文歷(li)史因(yin)素
1、土(tu)壤地(di)貌情況 坂里鄉地(di)形(xing)呈(cheng)蒲扇(shan)狀,東、西(xi)、北三(san)面(mian)青山(shan)環(huan)抱,南部(bu)為平原,土(tu)壤肥沃,有機質(zhi)1.5%以上,PH值5-6.5,海(hai)拔高度200-400米。
2、水文情況 坂里(li)鄉青(qing)山逶迤,自然天成一道(dao)道(dao)綠色的屏障,使這里(li)冬(dong)無嚴寒(han),夏無酷暑,氣候溫暖,雨量充沛(pei),常(chang)年春意(yi)盎然,四季花(hua)果飄(piao)香。高(gao)層溪是九龍江北(bei)溪的一條支(zhi)流,流經(jing)安溪和長泰兩縣,發源(yuan)于安溪縣境內的寶都,主河道(dao)長46km,總流域(yu)面積212平方公里(li)。
3、氣候自然情況 坂(ban)里(li)鄉屬南亞(ya)熱帶海洋性氣候,年(nian)平均(jun)降雨量1700毫米(mi),年(nian)日(ri)照時數2037小時,年(nian)平均(jun)氣溫19攝氏度,土壤肥(fei)沃、森(sen)林(lin)覆蓋率76%。轄(xia)區內有花(hua)岡石、葉臘石等豐(feng)富(fu)的(de)礦藏。水(shui)利資源(yuan)豐(feng)富(fu),境內有坂(ban)里(li)溪(xi)、高層溪(xi)直(zhi)流九龍江北溪(xi)。
三.地域范圍
坂(ban)(ban)里龍柚(you)主要分布于福建省漳州市長(chang)泰縣坂(ban)(ban)里鄉行政(zheng)(zheng)區(qu)內的6個行政(zheng)(zheng)村(cun)(cun),包括:新春村(cun)(cun)、坂(ban)(ban)新村(cun)(cun)、石格村(cun)(cun)、正(zheng)達(da)村(cun)(cun)、丹巖村(cun)(cun)、高層村(cun)(cun)。坂(ban)(ban)里龍柚(you)地(di)理坐標為北緯24°37′-24°44′,東(dong)經117°39'-117°49',保護(hu)面(mian)積(ji)1200公頃,年產量(liang)45000噸(dun)。
四.產品品質特性(xing)特征(zheng)
1、感官特(te)征(zheng)坂里(li)龍柚果(guo)(guo)(guo)實扁圓形,果(guo)(guo)(guo)肩微傾斜,果(guo)(guo)(guo)頂凹陷,果(guo)(guo)(guo)表黃綠(lv)色,囊(nang)瓣短梳型,果(guo)(guo)(guo)肉與(yu)囊(nang)瓣易(yi)剝(bo)離(li),果(guo)(guo)(guo)肉汁多、色白(bai)微黃,質地脆嫩化渣,酸甜(tian)適(shi)度,平均單果(guo)(guo)(guo)重約1公(gong)斤(jin),自花(hua)不棄、混(hun)栽種子數較(jiao)多,果(guo)(guo)(guo)實早(zao)熟(shu),成(cheng)熟(shu)期為(wei)9月(yue)中(zhong)旬,為(wei)福(fu)建(jian)省(sheng)最早(zao)熟(shu)蜜(mi)柚品種。
2、內在(zai)品質指標 可食(shi)率大于50%,可溶性固(gu)形(xing)物(wu)10%-12%,每100毫(hao)升果汁含(han)可滴定酸(suan) 0.6克(ke)以上、維(wei)生素C30毫(hao)克(ke)以上。
3、安全(quan)要(yao)求 產(chan)地(di)環境(jing)應符合(he)《NY5016-2001無公害食(shi)品(pin)柑桔(jie)產(chan)地(di)環境(jing)條件》的(de)要(yao)求,產(chan)品(pin)質(zhi)量應符合(he)《NY5014-2001無公害食(shi)品(pin) 柑桔(jie)》中對柚類的(de)要(yao)求。
五(wu).特定生產方(fang)式
1、產地(di)選擇與特殊內容規定 選擇坡度在(zai)25°以(yi)下,土(tu)壤疏(shu)松、肥沃,有機質含量在(zai)1.5%以(yi)上(shang),土(tu)層深厚(hou),土(tu)層在(zai)60厘米以(yi)上(shang),土(tu)壤透(tou)氣(qi)性好,地(di)下水位在(zai)1m以(yi)下,PH值在(zai)5.5-6.5之間的(de)低丘紅壤地(di)、沖積平原地(di)、沿河沙洲地(di)建園。坡度在(zai)6°-25°的(de)山(shan)(shan)地(di)、丘陵建園時修(xiu)筑等高(gao)梯地(di),梯田(tian)臺面(mian)寬(kuan)度在(zai)3.5m-4m,避(bi)免在(zai)山(shan)(shan)坳冷(leng)空氣(qi)沉積處(chu)和臺風正面(mian)襲擊(ji)地(di)帶(dai)種植。
2、苗木繁殖與選擇 可用兩年(nian)生(sheng)苦柚或(huo)酸柚實生(sheng)苗做砧木,在(zai)立春(chun)前(qian)后(hou)(hou)(hou)進行(xing)切(qie)接繁殖;也可在(zai)3、4月間(jian),選取(qu)直徑2-3厘(li)米粗的適當枝條進行(xing)高壓繁殖,即在(zai)枝條下端環(huan)狀剝(bo)皮約3厘(li)米,以200毫克/升奈乙酸(naa)或(huo)吲哚(duo)丁酸(iba)處理后(hou)(hou)(hou),用透明塑膠布內裝濕(shi)水苔(tai)或(huo)混(hun)合腐熟堆肥的粘(zhan)質(zhi)壤土包裹,適時(shi)加水保持(chi)濕(shi)度,經過一段時(shi)期,即由剝(bo)皮處上端發根,半(ban)年(nian)后(hou)(hou)(hou)根群發育旺盛,剪下假植(zhi)于(yu)苗床,再過3個(ge)月或(huo)翌(yi)年(nian)早春(chun)定植(zhi)。
3、栽(zai)培(pei)管理 坂(ban)里龍柚以11月(yue)至翌年2月(yue)萌芽前栽(zai)植(zhi)(zhi)(zhi)為宜,方式以正三角形最能充(chong)分利用空間,陽光照射均勻,土(tu)壤肥(fei)(fei)(fei)沃的平(ping)地(di)(di)行(xing)株距離為5-6米(mi),貧瘠坡地(di)(di)樹形較小,4-5米(mi)即可。 栽(zai)種前植(zhi)(zhi)(zhi)穴要(yao)適(shi)(shi)量挖大,寬和深(shen)都要(yao)1米(mi)以上,下(xia)層放入復(fu)合肥(fei)(fei)(fei)料或腐熟堆肥(fei)(fei)(fei),加入土(tu)壤混合,適(shi)(shi)度壓緊后將苗木立(li)于(yu)上方,再加入土(tu)壤壓實,種植(zhi)(zhi)(zhi)深(shen)度要(yao)比苗圃時淺(qian)些,根基四周略(lve)堆高,灌水使(shi)根部與土(tu)壤密(mi)接,上覆稻草保(bao)持濕(shi)潤,如(ru)果苗木會搖(yao)動時,須(xu)設支柱予(yu)以固定(ding)。
4、整枝(zhi)(zhi)(zhi)修(xiu)剪(jian)(jian)(jian)、疏果(guo)(guo)(guo)(guo)(guo)套(tao)袋(dai) 坂里龍柚修(xiu)剪(jian)(jian)(jian)應掌(zhang)握“頂(ding)(ding)上(shang)(shang)重(zhong)(zhong)(zhong),四周輕(qing),外(wai)(wai)圍重(zhong)(zhong)(zhong),內部(bu)輕(qing)”的(de)(de)(de)(de)原則,保留樹(shu)(shu)冠內堂中二年(nian)生以(yi)(yi)上(shang)(shang)枝(zhi)(zhi)(zhi)條(tiao),疏刪頂(ding)(ding)部(bu)和(he)外(wai)(wai)圍密(mi)集(ji)枝(zhi)(zhi)(zhi),剪(jian)(jian)(jian)除(chu)病蟲(chong)(chong)枝(zhi)(zhi)(zhi)和(he)枯(ku)枝(zhi)(zhi)(zhi),結果(guo)(guo)(guo)(guo)(guo)樹(shu)(shu)采用(yong)(yong)(yong)“控(kong)上(shang)(shang)促(cu)(cu)下(xia),控(kong)內促(cu)(cu)外(wai)(wai),去(qu)長(chang)留短,疏強留弱(ruo),適疏春梢,抹除(chu)夏秋梢”的(de)(de)(de)(de)作(zuo)法,保留15厘(li)米以(yi)(yi)上(shang)(shang)短小充(chong)實的(de)(de)(de)(de)春梢結果(guo)(guo)(guo)(guo)(guo)。 幼年(nian)樹(shu)(shu)初期采用(yong)(yong)(yong)單干(gan)整枝(zhi)(zhi)(zhi),剪(jian)(jian)(jian)除(chu)基部(bu)分(fen)枝(zhi)(zhi)(zhi),距離地面60-80厘(li)米左右選留3-4個(ge)間隔均(jun)勻(yun)、方位分(fen)配平均(jun)、發(fa)育(yu)良好的(de)(de)(de)(de)枝(zhi)(zhi)(zhi)條(tiao)做為(wei)主枝(zhi)(zhi)(zhi),使(shi)其向(xiang)四周均(jun)勻(yun)伸展,形(xing)成良好樹(shu)(shu)冠。前(qian)幾年(nian)把所開的(de)(de)(de)(de)花(hua)全部(bu)摘(zhai)除(chu),以(yi)(yi)促(cu)(cu)進(jin)樹(shu)(shu)體(ti)發(fa)育(yu),第4年(nian)起(qi)才讓它結果(guo)(guo)(guo)(guo)(guo),由于果(guo)(guo)(guo)(guo)(guo)實的(de)(de)(de)(de)重(zhong)(zhong)(zhong)量(liang)(liang)將枝(zhi)(zhi)(zhi)條(tiao)往下(xia)拉(la)引,可以(yi)(yi)使(shi)樹(shu)(shu)冠開張,形(xing)成半(ban)圓形(xing)。樹(shu)(shu)冠形(xing)成后(hou)的(de)(de)(de)(de)修(xiu)剪(jian)(jian)(jian),在(zai)于減(jian)少無(wu)用(yong)(yong)(yong)枝(zhi)(zhi)(zhi)條(tiao)消(xiao)耗(hao)養分(fen),并(bing)增(zeng)(zeng)加(jia)日(ri)光透射,促(cu)(cu)進(jin)樹(shu)(shu)冠內部(bu)枝(zhi)(zhi)(zhi)條(tiao)的(de)(de)(de)(de)花(hua)芽分(fen)化,提高(gao)果(guo)(guo)(guo)(guo)(guo)實的(de)(de)(de)(de)產量(liang)(liang)和(he)品(pin)質,每年(nian)11-12月修(xiu)剪(jian)(jian)(jian)一次,剪(jian)(jian)(jian)除(chu)交錯(cuo)、過(guo)密(mi)、細弱(ruo)的(de)(de)(de)(de)枝(zhi)(zhi)(zhi)條(tiao),另外(wai)(wai)發(fa)現生長(chang)不平衡的(de)(de)(de)(de)徒長(chang)枝(zhi)(zhi)(zhi)、病蟲(chong)(chong)害枝(zhi)(zhi)(zhi)條(tiao)時,隨時予以(yi)(yi)剪(jian)(jian)(jian)除(chu)。 發(fa)現畸(ji)形(xing)或病蟲(chong)(chong)害的(de)(de)(de)(de)果(guo)(guo)(guo)(guo)(guo)實應隨時摘(zhai)除(chu),結果(guo)(guo)(guo)(guo)(guo)過(guo)密(mi),應在(zai)果(guo)(guo)(guo)(guo)(guo)實發(fa)育(yu)到雞蛋大(da)小時予以(yi)(yi)疏果(guo)(guo)(guo)(guo)(guo),然后(hou)加(jia)以(yi)(yi)套(tao)袋(dai),套(tao)袋(dai)可以(yi)(yi)防止果(guo)(guo)(guo)(guo)(guo)實蠅(ying)等(deng)病蟲(chong)(chong)為(wei)害,減(jian)少農藥的(de)(de)(de)(de)使(shi)用(yong)(yong)(yong),同(tong)時袋(dai)內濕度增(zeng)(zeng)高(gao),部(bu)分(fen)太陽光線被濾過(guo),可使(shi)文旦(dan)果(guo)(guo)(guo)(guo)(guo)皮滑(hua)潤,顏色更鮮(xian)艷動人,獲得消(xiao)費者喜愛(ai)。
5、施(shi)(shi)(shi)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)管理(li) 坂(ban)里(li)龍柚與(yu)一(yi)般柑桔類(lei)相同,幼(you)(you)年(nian)(nian)(nian)(nian)樹施(shi)(shi)(shi)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)主要(yao)在(zai)(zai)促進植株(zhu)(zhu)發(fa)育。 除(chu)了三要(yao)素(su)(su)之外,鎂、鋅、錳(meng)、鐵、硼、銅、鉬等微量(liang)元素(su)(su)也可(ke)(ke)能發(fa)生(sheng)(sheng)缺乏,可(ke)(ke)用各(ge)元素(su)(su)水溶性鹽(yan)類(lei)稀釋葉(xie)面施(shi)(shi)(shi)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)緊急補救,如能多(duo)施(shi)(shi)(shi)有機質(zhi)(zhi)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)料,不但可(ke)(ke)以(yi)改善土壤結構和理(li)化性質(zhi)(zhi),也可(ke)(ke)以(yi)供給均衡的營養,尤其坡地果(guo)(guo)園(yuan),應(ying)多(duo)加補充(chong)。 為(wei)(wei)了使肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)料能被幼(you)(you)年(nian)(nian)(nian)(nian)樹充(chong)分吸(xi)收,可(ke)(ke)以(yi)樹干為(wei)(wei)中(zhong)心挖(wa)輻射狀溝或沿樹冠(guan)下(xia)(xia)方挖(wa)環溝或在(zai)(zai)行(xing)株(zhu)(zhu)間條溝,深約10-15厘米,施(shi)(shi)(shi)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)后再(zai)覆土。 幼(you)(you)樹施(shi)(shi)(shi)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei):一(yi)般按(an)各(ge)次(ci)(ci)抽梢(shao)時期確定,在(zai)(zai)每(mei)次(ci)(ci)抽梢(shao)萌芽前施(shi)(shi)(shi)一(yi)次(ci)(ci),11月(yue)(yue)再(zai)施(shi)(shi)(shi)一(yi)次(ci)(ci)越冬肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei),全年(nian)(nian)(nian)(nian)施(shi)(shi)(shi)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)4-6次(ci)(ci)。每(mei)株(zhu)(zhu)每(mei)年(nian)(nian)(nian)(nian)用肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)量(liang):緑(lv)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)25公(gong)(gong)斤(jin)(jin)(jin),餅肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)0.5公(gong)(gong)斤(jin)(jin)(jin),尿素(su)(su)0.3-0.4公(gong)(gong)斤(jin)(jin)(jin),磷(lin)(lin)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)0.25公(gong)(gong)斤(jin)(jin)(jin);一(yi)年(nian)(nian)(nian)(nian)生(sheng)(sheng)施(shi)(shi)(shi)氮(dan)100克(ke),二(er)年(nian)(nian)(nian)(nian)生(sheng)(sheng)施(shi)(shi)(shi)氮(dan)120克(ke),三年(nian)(nian)(nian)(nian)生(sheng)(sheng)施(shi)(shi)(shi)氮(dan)150克(ke)。 成(cheng)(cheng)年(nian)(nian)(nian)(nian)樹施(shi)(shi)(shi)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei):每(mei)年(nian)(nian)(nian)(nian)至少四次(ci)(ci)。2月(yue)(yue)上(shang)中(zhong)旬壯梢(shao)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei),每(mei)株(zhu)(zhu)施(shi)(shi)(shi)尿素(su)(su)0.5公(gong)(gong)斤(jin)(jin)(jin);4月(yue)(yue)中(zhong)下(xia)(xia)旬穩果(guo)(guo)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei),每(mei)株(zhu)(zhu)施(shi)(shi)(shi)尿素(su)(su)0.2公(gong)(gong)斤(jin)(jin)(jin);6月(yue)(yue)施(shi)(shi)(shi)壯果(guo)(guo)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei),每(mei)株(zhu)(zhu)施(shi)(shi)(shi)復合(he)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)0.5公(gong)(gong)斤(jin)(jin)(jin),餅肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)2公(gong)(gong)斤(jin)(jin)(jin),磷(lin)(lin)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)1公(gong)(gong)斤(jin)(jin)(jin);8、9月(yue)(yue)施(shi)(shi)(shi)采果(guo)(guo)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei),每(mei)株(zhu)(zhu)施(shi)(shi)(shi)復合(he)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)0.5公(gong)(gong)斤(jin)(jin)(jin)。 成(cheng)(cheng)年(nian)(nian)(nian)(nian)樹施(shi)(shi)(shi)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)以(yi)補充(chong)果(guo)(guo)實生(sheng)(sheng)產的消耗(hao)為(wei)(wei)主。 成(cheng)(cheng)年(nian)(nian)(nian)(nian)樹可(ke)(ke)用全園(yuan)撒施(shi)(shi)(shi)法,在(zai)(zai)果(guo)(guo)實采收后及春芽萌發(fa)期各(ge)施(shi)(shi)(shi)用40%氮(dan)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)和磷(lin)(lin)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)、30%鉀(jia)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei);在(zai)(zai)果(guo)(guo)實肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)大期(5-6月(yue)(yue))施(shi)(shi)(shi)用20%氮(dan)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)和磷(lin)(lin)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei),40%鉀(jia)肥(fei)(fei)(fei)(fei)(fei)(fei)(fei)(fei)。
6、采收(shou)適期 坂里龍(long)柚一般在(zai)3-4月開花結果,9月中旬采收(shou),經2-3周貯(zhu)藏,水分(fen)蒸散減少,肉質柔(rou)美,糖度增高,品質特佳。