一.產品介紹
巍(wei)(wei)山(shan)(shan)紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)在(zai)當地(di)栽培歷史(shi)悠久,據(ju)(ju)巍(wei)(wei)山(shan)(shan)彝(yi)(yi)族(zu)回族(zu)自治縣(xian)《林業(ye)(ye)》記載:“巍(wei)(wei)山(shan)(shan)紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)是縣(xian)內特有(you)(you)(you)的(de)晚熟(shu)(shu)耐儲藏(zang)的(de)優良品(pin)(pin)種,已有(you)(you)(you)近百(bai)年(nian)(nian)(nian)(nian)的(de)栽培歷史(shi)”。 因(yin)成熟(shu)(shu)于冬(dong)季(ji),群眾(zhong)又稱之為(wei)(wei)“冬(dong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)”。 據(ju)(ju)巍(wei)(wei)山(shan)(shan)彝(yi)(yi)族(zu)回族(zu)自治縣(xian)科(ke)技(ji)局(ju)整(zheng)理(li)的(de)資料《紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)王(wang)》中記載:“在(zai)巍(wei)(wei)山(shan)(shan)縣(xian)海(hai)拔2400米的(de)鼠街新家(jia)村上對生(sheng)長有(you)(you)(you)一(yi)株自然(ran)雜(za)交而成的(de)紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li),據(ju)(ju)有(you)(you)(you)關專家(jia)認(ren)定該(gai)樹至今已在(zai)這片土地(di)上巍(wei)(wei)巍(wei)(wei)挺(ting)立(li)了兩百(bai)多年(nian)(nian)(nian)(nian)”。據(ju)(ju)巍(wei)(wei)山(shan)(shan)縣(xian)地(di)方舊志(zhi)叢書(清)《蒙(meng)化志(zhi)稿》第十四卷(juan)物產志(zhi)記載:“梨(li)(li)(li)(li)(一(yi)名快果(guo)(guo),一(yi)名玉乳,一(yi)名蜜(mi)父(fu),有(you)(you)(you)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)、蠻梨(li)(li)(li)(li)、香酥、早白、火把、花紅(hong)(hong)(hong)、水扁數種)”。據(ju)(ju)縣(xian)《林業(ye)(ye)》、《巍(wei)(wei)山(shan)(shan)彝(yi)(yi)族(zu)回族(zu)自治縣(xian)志(zhi)》及《巍(wei)(wei)山(shan)(shan)年(nian)(nian)(nian)(nian)鑒(jian)》記載:“1983年(nian)(nian)(nian)(nian)至1984年(nian)(nian)(nian)(nian),由縣(xian)政協牽頭,組織了縣(xian)科(ke)委(wei)、民委(wei)、經(jing)協辦(ban)、農(nong)業(ye)(ye)局(ju)、國(guo)土辦(ban)等有(you)(you)(you)關單位(wei)進行紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)資源調(diao)查,獲得(de)巍(wei)(wei)山(shan)(shan)縣(xian)1984年(nian)(nian)(nian)(nian)科(ke)技(ji)成果(guo)(guo)二等獎,并(bing)于1985年(nian)(nian)(nian)(nian)4月(yue)在(zai)《云南(nan)(nan)(nan)(nan)科(ke)技(ji)報》進行了報道。1986年(nian)(nian)(nian)(nian),經(jing)有(you)(you)(you)關專家(jia)鑒(jian)定,巍(wei)(wei)山(shan)(shan)紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)為(wei)(wei)云南(nan)(nan)(nan)(nan)罕見品(pin)(pin)種,具有(you)(you)(you)開發(fa)(fa)價(jia)值。1987年(nian)(nian)(nian)(nian)巍(wei)(wei)山(shan)(shan)紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)開發(fa)(fa)被(bei)列為(wei)(wei)云南(nan)(nan)(nan)(nan)省(sheng)(sheng)(sheng)(sheng)‘星火計劃’項目之一(yi)。1989年(nian)(nian)(nian)(nian)底統(tong)計,全縣(xian)掛果(guo)(guo)紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)6萬多株,年(nian)(nian)(nian)(nian)產量(liang)100萬斤。1990年(nian)(nian)(nian)(nian),巍(wei)(wei)山(shan)(shan)紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)被(bei)云南(nan)(nan)(nan)(nan)省(sheng)(sheng)(sheng)(sheng)溫帶果(guo)(guo)樹專家(jia)評委(wei)會(hui)評為(wei)(wei)省(sheng)(sheng)(sheng)(sheng)晚熟(shu)(shu)梨(li)(li)(li)(li)第一(yi)名,并(bing)頒(ban)發(fa)(fa)了證(zheng)書。1993年(nian)(nian)(nian)(nian)獲得(de)云南(nan)(nan)(nan)(nan)省(sheng)(sheng)(sheng)(sheng)農(nong)牧漁業(ye)(ye)廳優質(zhi)水果(guo)(guo)產品(pin)(pin)證(zheng)書,1995年(nian)(nian)(nian)(nian)獲得(de)中國(guo)第二屆農(nong)業(ye)(ye)博覽會(hui)銀質(zhi)獎產品(pin)(pin)”。 巍(wei)(wei)山(shan)(shan)紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)晚熟(shu)(shu)、耐貯(zhu)藏(zang)、外觀艷麗(li),富含(han)氨基酸,營(ying)養豐富,深受消費者青(qing)睞,市場供不應求。2009年(nian)(nian)(nian)(nian)巍(wei)(wei)山(shan)(shan)彝(yi)(yi)族(zu)回族(zu)自治縣(xian)綠(lv)源林果(guo)(guo)有(you)(you)(you)限責任公司生(sheng)產的(de)紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)獲得(de)了“綠(lv)色食(shi)品(pin)(pin)A級”認(ren)證(zheng)。2011年(nian)(nian)(nian)(nian),巍(wei)(wei)山(shan)(shan)紅(hong)(hong)(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)(li)(li)被(bei)云南(nan)(nan)(nan)(nan)省(sheng)(sheng)(sheng)(sheng)列為(wei)(wei)農(nong)業(ye)(ye)地(di)方標準示范項目。
二(er).自然生態環境(jing)和人文歷史因素(su)
(1)地(di)(di)質地(di)(di)貌(mao) 種植(zhi)區地(di)(di)勢由西(xi)北向(xiang)東(dong)南傾斜和降(jiang)低,西(xi)部(bu)為高山峽谷,東(dong)部(bu)為高山,中間為巍(wei)山壩子,最(zui)高海(hai)拔(ba)3037 m,最(zui)低海(hai)拔(ba)1146 m,平均海(hai)拔(ba)1780 m。適宜種植(zhi)的(de)海(hai)拔(ba)為1700m~2400m,土(tu)(tu)壤主(zhu)要類(lei)型(xing)以紫色(se)土(tu)(tu)和紅(hong)壤土(tu)(tu)為主(zhu), PH值5.6~7.2的(de)山區半山區及(ji)緩坡地(di)(di),土(tu)(tu)壤有機質含(han)量高,疏松、透氣、排水良好(hao)。
(2)水(shui)文情況 種植(zhi)(zhi)區主(zhu)要河(he)流有漾江(jiang)(jiang)和西(xi)河(he),流經縣內(nei)十(shi)個(ge)鄉(xiang)鎮,漾江(jiang)(jiang)歸(gui)入瀾(lan)滄江(jiang)(jiang)水(shui)系,西(xi)河(he)歸(gui)入紅河(he)水(shui)系。種植(zhi)(zhi)區水(shui)資源豐富,水(shui)質優良。
(3)氣(qi)候(hou)情況 種植(zhi)區屬北亞熱帶(dai)高(gao)原季(ji)風氣(qi)候(hou),境內山勢磅礴(bo),峻嶺(ling)逶迤,河谷、山地(di)、壩子(zi)相間分布,在特(te)定(ding)的地(di)理(li)條件下形成了冬(dong)無嚴寒、夏(xia)無酷(ku)暑、冬(dong)干夏(xia)雨、干濕季(ji)分明和氣(qi)候(hou)水平(ping)分布復雜,“立體氣(qi)候(hou)”明顯的地(di)域性(xing)氣(qi)候(hou)及立體性(xing)氣(qi)候(hou)特(te)征。年(nian)(nian)(nian)最高(gao)氣(qi)溫(wen)32.4℃,最低(di)氣(qi)溫(wen)-1.1℃,年(nian)(nian)(nian)平(ping)均氣(qi)溫(wen)15.8℃;無霜期246天;年(nian)(nian)(nian)平(ping)均日照時數(shu)為2342.8小時,冬(dong)半年(nian)(nian)(nian)多于(yu)夏(xia)半年(nian)(nian)(nian);年(nian)(nian)(nian)平(ping)均降雨量800~1000mm,主要集(ji)中在7、8月份。
三.地域范圍
巍山紅(hong)雪梨產(chan)于云南省大(da)理白(bai)族自治(zhi)州巍山彝族回族自治(zhi)縣境(jing)內(nei),種植區域涉(she)及馬(ma)鞍(an)山鄉(xiang)、巍寶山鄉(xiang)、五印鄉(xiang)、紫(zi)金鄉(xiang)、南詔鎮(zhen)、廟(miao)街(jie)(jie)鎮(zhen)、大(da)倉鎮(zhen)、永(yong)建(jian)鎮(zhen)、牛街(jie)(jie)鄉(xiang)、青華鄉(xiang)十個鄉(xiang)鎮(zhen),地理坐(zuo)標為:東經99°55′~100°25′、北緯24°56′~25°32′之(zhi)間,東西寬47㎞,南北長65㎞,種植總面積2000公頃,年產(chan)量50000噸。
四(si).產品品質(zhi)特(te)性特(te)征
(1)外(wai)在感官特征 巍(wei)山紅(hong)(hong)雪梨成年果(guo)樹樹高1.5m以上,整(zheng)形修剪(jian)多(duo)為主干疏散分層形和自然開心形,葉翠綠;是一種晚熟優(you)質(zhi)水果(guo),每年2月底3月初開花,10—12月成熟;耐貯(zhu)(zhu)藏,可(ke)貯(zhu)(zhu)藏到翌年梨花盛開時節(jie);果(guo)卵(luan)圓形,大小整(zheng)齊,平均單果(guo)重150~250克,表(biao)皮底色發黃(huang),三分之二以上果(guo)面鮮紅(hong)(hong)色,似胭脂紅(hong)(hong),色澤鮮艷美觀,果(guo)肉白色,肉質(zhi)細而質(zhi)脆、汁多(duo)無渣、酸甜適中。
(2)內在品質(zhi)指標(biao) 巍(wei)山紅雪梨口感嫩脆(cui),汁多、無渣、核小,酸(suan)甜(tian)適度(du),營養(yang)豐(feng)富, 耐儲藏。可溶(rong)性固形物≥8.0%;硬度(du)≥2.8 kg f/平方(fang)厘米;總(zong)糖≥4.8%;可滴定酸(suan)≤3.0g/kg;總(zong)氨(an)基酸(suan)≥1.8%;維生素C≥2.0㎎/100g。
(3)安全要求 巍(wei)山紅雪梨(li)產(chan)(chan)地環境按照《NY5013-2006 無公害食品林果類產(chan)(chan)品產(chan)(chan)地環境條件(jian)》執(zhi)行;產(chan)(chan)品質量(liang)符(fu)合《GB/T 10650-2008鮮梨(li)》產(chan)(chan)品標準。
五.特定生產方式
(1)產(chan)地(di)選擇(ze) 一般選擇(ze)海拔1700~2400m,土(tu)壤(rang)主(zhu)要類型以紫(zi)色土(tu)和紅(hong)壤(rang)土(tu)為主(zhu),PH值5.6~7.2,年(nian)平(ping)(ping)均氣溫(wen)15.8℃,無(wu)霜期(qi)246天;年(nian)平(ping)(ping)均日照時數(shu)不低(di)于2342.8小(xiao)時,年(nian)平(ping)(ping)均降雨(yu)量800~1000mm的(de)山(shan)區(qu)半山(shan)區(qu)及緩坡地(di),土(tu)壤(rang)有機質含量高,疏松、透氣、排(pai)水良(liang)好,背風向陽,周圍(wei)無(wu)柏樹和泡桐種植(zhi)(zhi)的(de)地(di)區(qu)種植(zhi)(zhi)。
(2)品(pin)(pin)種選擇 巍(wei)山紅雪梨(li)選擇品(pin)(pin)種是種植歷史悠久(jiu),屬于優質晚熟(shu)耐儲藏且抗(kang)(kang)逆性(xing)、抗(kang)(kang)病(bing)性(xing)強的優良地方(fang)品(pin)(pin)種。
(3)種植規程
①砧(zhen)木(mu)培育 苗地(di)選擇:選擇地(di)勢(shi)平(ping)坦,土壤(rang)肥沃,土層深厚,灌(guan)水、排(pai)水方便(bian)的(de)沙(sha)壤(rang)土或壤(rang)土,周邊環(huan)境無污(wu)染的(de)地(di)方。 苗木(mu)培育:選擇本地(di)川梨作為砧(zhen)木(mu),選用種性純(chun)正,豐產性好,抗(kang)逆性、抗(kang)病(bing)性強,且五年以上(shang)結果株為采(cai)穗母樹的(de)巍山紅(hong)雪梨接穗。
②嫁(jia)接 嫁(jia)接以(yi)枝(zhi)接為(wei)主(zhu),一般在早春(chun)樹(shu)液開始流動(dong)時(shi)進行,以(yi)立春(chun)前后20天(tian)為(wei)宜(yi),嫁(jia)接時(shi)把握好(hao)“快(kuai)、平、凈、齊、緊”五個要(yao)領,即(ji):嫁(jia)接操作時(shi)間短,速度快(kuai);使砧木(mu)和接穗的切(qie)面光滑平整;保(bao)證(zheng)接穗和砧木(mu)的切(qie)面清潔無(wu)污染;保(bao)證(zheng)砧木(mu)和接穗的形(xing)成(cheng)層對齊;保(bao)證(zheng)包(bao)扎不(bu)漏氣(qi),可提高嫁(jia)接成(cheng)活力。
③出圃 當苗(miao)高(gao)長(chang)至1m以上,直徑0.8cm以上時(shi)可出圃移栽,要求梨苗(miao)根系生長(chang)完好(hao),無病蟲害、無損傷,無失水現象。
④建園(yuan) 整地(di)(di)(di)(di)(di):坡(po)地(di)(di)(di)(di)(di)應修(xiu)筑梯地(di)(di)(di)(di)(di)或(huo)魚鱗臺。按株(zhu)行距(ju)挖穴(溝)寬80cm,深60cm的(de)定(ding)(ding)植(zhi)(zhi)(zhi)穴(溝)。開(kai)挖時(shi)要(yao)把(ba)表(biao)土(tu)(tu)(tu)和心土(tu)(tu)(tu)分開(kai)堆放,定(ding)(ding)植(zhi)(zhi)(zhi)穴(溝)上(shang)下寬度要(yao)保持一(yi)致(zhi)。穴(溝)挖好(hao)后,先填入30~40cm左(zuo)右的(de)作物秸稈(gan)或(huo)綠肥(fei),并(bing)將(jiang)表(biao)土(tu)(tu)(tu)加(jia)入踏緊,再用足量(liang)腐熟有機肥(fei)和少量(liang)化(hua)肥(fei)與土(tu)(tu)(tu)混(hun)合(he)填入。 栽植(zhi)(zhi)(zhi)方(fang)式與密度:定(ding)(ding)植(zhi)(zhi)(zhi)時(shi),將(jiang)梨苗主根(gen)(gen)剪除2~3cm,除去嫁接口薄(bo)膜,嫁接口需露出(chu)地(di)(di)(di)(di)(di)面(mian)5~10cm,踏實根(gen)(gen)部土(tu)(tu)(tu)壤,培半(ban)徑50cm 左(zuo)右樹(shu)(shu)(shu)盤(pan),并(bing)高于地(di)(di)(di)(di)(di)面(mian)30㎝,澆足定(ding)(ding)根(gen)(gen)水,然后用薄(bo)膜覆蓋。根(gen)(gen)據不同地(di)(di)(di)(di)(di)形、地(di)(di)(di)(di)(di)塊確定(ding)(ding)種(zhong)植(zhi)(zhi)(zhi)密度,常規株(zhu)行距(ju)4m×5m,密植(zhi)(zhi)(zhi)株(zhu)行距(ju)4m×3m。 栽植(zhi)(zhi)(zhi)時(shi)間:落葉后至發芽前,時(shi)間為(wei)(wei)每年11月(yue)至第二(er)年2月(yue)。 配置(zhi)(zhi)授(shou)粉樹(shu)(shu)(shu):巍山紅雪梨為(wei)(wei)異(yi)花(hua)授(shou)粉樹(shu)(shu)(shu)種(zhong),所以(yi)必須配置(zhi)(zhi)花(hua)一(yi)致(zhi)的(de)授(shou)粉梨樹(shu)(shu)(shu),授(shou)粉梨樹(shu)(shu)(shu)品種(zhong)可用黃梨、巍山本地(di)(di)(di)(di)(di)蠻梨、火把(ba)梨作為(wei)(wei)授(shou)粉樹(shu)(shu)(shu)。紅雪梨與授(shou)粉樹(shu)(shu)(shu)配置(zhi)(zhi)比(bi)例為(wei)(wei)8∶1;授(shou)粉樹(shu)(shu)(shu)應配置(zhi)(zhi)在(zai)上(shang)風(feng)方(fang)口。
⑤土(tu)肥(fei)(fei)水(shui)(shui)(shui)管(guan)理(li) 土(tu)壤管(guan)理(li):幼年果(guo)園(yuan)每年深(shen)(shen)(shen)翻(fan)擴穴1-2次(ci),成年果(guo)園(yuan)每年全(quan)園(yuan)深(shen)(shen)(shen)翻(fan)或(huo)隔行(xing)(株)深(shen)(shen)(shen)翻(fan)1-2次(ci),深(shen)(shen)(shen)度一(yi)般以(yi)30~40cm為(wei)(wei)宜。深(shen)(shen)(shen)翻(fan)時(shi)間在(zai)冬(dong)季(ji)落葉前(qian)進(jin)行(xing)。 肥(fei)(fei)水(shui)(shui)(shui)管(guan)理(li):基肥(fei)(fei)施(shi)用結(jie)合(he)(he)土(tu)壤深(shen)(shen)(shen)翻(fan),以(yi)有機肥(fei)(fei)為(wei)(wei)主,可混加少量氮(dan)、磷、鉀(jia)(jia)(jia)素化肥(fei)(fei)。追肥(fei)(fei),第一(yi)次(ci)在(zai)萌芽前(qian)后,以(yi)氮(dan)肥(fei)(fei)為(wei)(wei)主,每株(成年樹(shu))2.0~2.5kg;第二次(ci)在(zai)花(hua)(hua)芽分化及(ji)果(guo)實膨大期(qi),以(yi)速效氮(dan)鉀(jia)(jia)(jia)肥(fei)(fei)為(wei)(wei)主,適當配合(he)(he)磷肥(fei)(fei),施(shi)肥(fei)(fei)量略(lve)高于第一(yi)次(ci);第三次(ci)在(zai)果(guo)實生(sheng)長(chang)后期(qi),以(yi)鉀(jia)(jia)(jia)肥(fei)(fei)為(wei)(wei)主。其余時(shi)間根(gen)據(ju)具(ju)體(ti)情(qing)況進(jin)行(xing)施(shi)肥(fei)(fei),施(shi)肥(fei)(fei)量以(yi)當地的(de)(de)土(tu)壤條件(jian)和施(shi)肥(fei)(fei)特點確(que)定。施(shi)肥(fei)(fei)方法采用溝(gou)(gou)施(shi),挖放射狀溝(gou)(gou)或(huo)在(zai)樹(shu)冠外圍挖環(huan)狀溝(gou)(gou),溝(gou)(gou)深(shen)(shen)(shen)15cm~20cm。根(gen)外追肥(fei)(fei)可結(jie)合(he)(he)噴藥施(shi)用,全(quan)年4~5次(ci),一(yi)般生(sheng)長(chang)前(qian)期(qi) 2 次(ci),以(yi)氮(dan)肥(fei)(fei)為(wei)(wei)主;后期(qi)2~3次(ci),以(yi)磷、鉀(jia)(jia)(jia)肥(fei)(fei)為(wei)(wei)主。施(shi)肥(fei)(fei)應結(jie)合(he)(he)灌(guan)水(shui)(shui)(shui),應根(gen)據(ju)土(tu)壤墑(di)情(qing)及(ji)降(jiang)雨情(qing)況確(que)定是(shi)否灌(guan)水(shui)(shui)(shui),一(yi)般全(quan)年共3~4次(ci)。我縣紅(hong)雪梨(li)種植區,冬(dong)春應注意灌(guan)水(shui)(shui)(shui)尤其是(shi)春季(ji)梨(li)樹(shu)開(kai)花(hua)(hua)前(qian)和開(kai)花(hua)(hua)后,夏季(ji)果(guo)實生(sheng)長(chang)期(qi)要注意水(shui)(shui)(shui)分供給的(de)(de)均衡性,以(yi)防出現裂果(guo)的(de)(de)現象。
⑥整形(xing)(xing)修剪 根(gen)據栽培技術、立地(di)條件(jian)不同而異(yi),一般有主(zhu)(zhu)(zhu)(zhu)(zhu)干(gan)(gan)疏(shu)散分(fen)層(ceng)(ceng)(ceng)形(xing)(xing)、自(zi)然(ran)開(kai)心形(xing)(xing)。主(zhu)(zhu)(zhu)(zhu)(zhu)干(gan)(gan)疏(shu)散分(fen)層(ceng)(ceng)(ceng)形(xing)(xing):定干(gan)(gan)高(gao)(gao)度(du)通常為80cm,下端50cm做主(zhu)(zhu)(zhu)(zhu)(zhu)干(gan)(gan),上端30cm做整形(xing)(xing)帶;第(di)一層(ceng)(ceng)(ceng)分(fen)布3個(ge)主(zhu)(zhu)(zhu)(zhu)(zhu)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),主(zhu)(zhu)(zhu)(zhu)(zhu)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)之間(jian)(jian)的角(jiao)度(du)以120°為好,每個(ge)主(zhu)(zhu)(zhu)(zhu)(zhu)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)上配備3個(ge)側(ce)(ce)(ce)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),第(di)二(er)層(ceng)(ceng)(ceng)分(fen)布2個(ge)主(zhu)(zhu)(zhu)(zhu)(zhu)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),每個(ge)主(zhu)(zhu)(zhu)(zhu)(zhu)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)上配備2個(ge)側(ce)(ce)(ce)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),第(di)三(san)層(ceng)(ceng)(ceng)分(fen)布1個(ge)主(zhu)(zhu)(zhu)(zhu)(zhu)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),配以1~2個(ge)側(ce)(ce)(ce)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi);第(di)一層(ceng)(ceng)(ceng)和第(di)二(er)層(ceng)(ceng)(ceng)之間(jian)(jian)間(jian)(jian)距80~100cm,第(di)二(er)層(ceng)(ceng)(ceng)和第(di)三(san)層(ceng)(ceng)(ceng)之間(jian)(jian)間(jian)(jian)距100~120cm,全樹高(gao)(gao)度(du)控(kong)制在3~3.5m。自(zi)然(ran)開(kai)心形(xing)(xing):干(gan)(gan)高(gao)(gao)40cm~50cm,主(zhu)(zhu)(zhu)(zhu)(zhu)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)3~4個(ge),斜直(zhi)向上生(sheng)長,無中心干(gan)(gan),在主(zhu)(zhu)(zhu)(zhu)(zhu)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)上再向外分(fen)生(sheng)副主(zhu)(zhu)(zhu)(zhu)(zhu)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),共3~4層(ceng)(ceng)(ceng)。主(zhu)(zhu)(zhu)(zhu)(zhu)枝(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)腰(yao)角(jiao)70度(du),大量結果(guo)時達80度(du),樹高(gao)(gao)控(kong)制在2~3m。
⑦疏(shu)果(guo) 疏(shu)果(guo)通常在落果(guo)高峰過(guo)后(hou)進行。一(yi)般幼果(guo)間距30cm~35cm。留(liu)果(guo)時掌握選(xuan)留(liu)第三個果(guo)或第四個果(guo)。對(dui)于開花(hua)量較少的年份(fen),則應(ying)進行保花(hua)保果(guo),采取加強土(tu)肥水管理、果(guo)園放蜂、在盛(sheng)花(hua)期全(quan)樹噴0.3%硼(peng)砂和(he)0.3%尿(niao)素(su)及0.5%白砂糖混合液等措(cuo)施,提高座果(guo)率。
⑧病(bing)蟲(chong)害防(fang)(fang)(fang)治(zhi)(zhi)(zhi)(zhi) 以預防(fang)(fang)(fang)為(wei)(wei)主(zhu),綜合(he)防(fang)(fang)(fang)治(zhi)(zhi)(zhi)(zhi)為(wei)(wei)原則,根據病(bing)蟲(chong)害的發生規律及時防(fang)(fang)(fang)治(zhi)(zhi)(zhi)(zhi)。主(zhu)要病(bing)蟲(chong)害有(you):黑星病(bing)、褐斑(ban)病(bing)、梨食心蟲(chong)、蚜蟲(chong)、紅蜘蛛(zhu)、蝽象。防(fang)(fang)(fang)治(zhi)(zhi)(zhi)(zhi)措施以物(wu)理防(fang)(fang)(fang)治(zhi)(zhi)(zhi)(zhi)、生物(wu)防(fang)(fang)(fang)治(zhi)(zhi)(zhi)(zhi)為(wei)(wei)主(zhu),化學防(fang)(fang)(fang)治(zhi)(zhi)(zhi)(zhi)嚴(yan)禁使用國家禁止使用及高毒高殘(can)留農藥。
(4)采(cai)(cai)收 采(cai)(cai)收期(qi)一般在10—12月,采(cai)(cai)收方法人工(gong)采(cai)(cai)收,根據果實成(cheng)熟(shu)度(du)和市(shi)場需(xu)求適時采(cai)(cai)收。要求采(cai)(cai)摘時輕拿輕放(fang),免(mian)碰傷(shang)、刺傷(shang)。果實下樹(shu)后要用(yong)專用(yong)竹籃或果框盛放(fang)。
(5)生(sheng)產安全(quan)記(ji)錄(lu) 種(zhong)植、施肥、病蟲(chong)害防(fang)治、包(bao)裝等(deng)全(quan)過程都(dou)要(yao)有記(ji)錄(lu),建立生(sheng)產檔案,以便查閱(yue)。立生(sheng)產檔案保存不低(di)于(yu)2年。