一.產品介紹
巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)在(zai)當(dang)地栽培歷(li)史悠久,據(ju)巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)彝(yi)族(zu)回(hui)族(zu)自(zi)(zi)(zi)治縣(xian)(xian)《林(lin)(lin)業(ye)(ye)》記(ji)(ji)載(zai)(zai):“巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)是(shi)縣(xian)(xian)內特有(you)(you)的(de)晚(wan)(wan)熟耐(nai)儲藏的(de)優良品(pin)(pin)(pin)種(zhong),已(yi)有(you)(you)近百年(nian)(nian)(nian)(nian)的(de)栽培歷(li)史”。 因成熟于冬(dong)季(ji),群眾又稱之(zhi)為(wei)(wei)(wei)“冬(dong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)”。 據(ju)巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)彝(yi)族(zu)回(hui)族(zu)自(zi)(zi)(zi)治縣(xian)(xian)科技(ji)局(ju)整(zheng)理(li)的(de)資料(liao)《紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)王》中(zhong)記(ji)(ji)載(zai)(zai):“在(zai)巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)縣(xian)(xian)海拔2400米的(de)鼠街新家村上對生長(chang)有(you)(you)一(yi)株自(zi)(zi)(zi)然雜交(jiao)而成的(de)紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li),據(ju)有(you)(you)關專家認定(ding)該樹至今已(yi)在(zai)這片土(tu)地上巍(wei)(wei)(wei)(wei)(wei)巍(wei)(wei)(wei)(wei)(wei)挺(ting)立了(le)兩百多年(nian)(nian)(nian)(nian)”。據(ju)巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)縣(xian)(xian)地方舊志(zhi)(zhi)叢書(shu)(清)《蒙化志(zhi)(zhi)稿(gao)》第十四卷物產(chan)志(zhi)(zhi)記(ji)(ji)載(zai)(zai):“梨(li)(li)(一(yi)名快(kuai)果(guo)(guo),一(yi)名玉乳,一(yi)名蜜父,有(you)(you)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)、蠻梨(li)(li)、香酥(su)、早白(bai)、火(huo)把、花紅(hong)、水扁數(shu)種(zhong))”。據(ju)縣(xian)(xian)《林(lin)(lin)業(ye)(ye)》、《巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)彝(yi)族(zu)回(hui)族(zu)自(zi)(zi)(zi)治縣(xian)(xian)志(zhi)(zhi)》及《巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)年(nian)(nian)(nian)(nian)鑒》記(ji)(ji)載(zai)(zai):“1983年(nian)(nian)(nian)(nian)至1984年(nian)(nian)(nian)(nian),由縣(xian)(xian)政協(xie)牽(qian)頭,組織了(le)縣(xian)(xian)科委(wei)、民委(wei)、經協(xie)辦、農(nong)(nong)業(ye)(ye)局(ju)、國(guo)土(tu)辦等有(you)(you)關單位進行(xing)紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)資源調查,獲得巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)縣(xian)(xian)1984年(nian)(nian)(nian)(nian)科技(ji)成果(guo)(guo)二(er)等獎,并(bing)于1985年(nian)(nian)(nian)(nian)4月在(zai)《云(yun)南(nan)(nan)科技(ji)報》進行(xing)了(le)報道(dao)。1986年(nian)(nian)(nian)(nian),經有(you)(you)關專家鑒定(ding),巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)為(wei)(wei)(wei)云(yun)南(nan)(nan)罕見品(pin)(pin)(pin)種(zhong),具有(you)(you)開發價值(zhi)。1987年(nian)(nian)(nian)(nian)巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)開發被(bei)列(lie)為(wei)(wei)(wei)云(yun)南(nan)(nan)省‘星火(huo)計劃’項目之(zhi)一(yi)。1989年(nian)(nian)(nian)(nian)底統計,全縣(xian)(xian)掛(gua)果(guo)(guo)紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)6萬多株,年(nian)(nian)(nian)(nian)產(chan)量100萬斤。1990年(nian)(nian)(nian)(nian),巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)被(bei)云(yun)南(nan)(nan)省溫帶果(guo)(guo)樹專家評委(wei)會評為(wei)(wei)(wei)省晚(wan)(wan)熟梨(li)(li)第一(yi)名,并(bing)頒發了(le)證(zheng)書(shu)。1993年(nian)(nian)(nian)(nian)獲得云(yun)南(nan)(nan)省農(nong)(nong)牧漁業(ye)(ye)廳優質水果(guo)(guo)產(chan)品(pin)(pin)(pin)證(zheng)書(shu),1995年(nian)(nian)(nian)(nian)獲得中(zhong)國(guo)第二(er)屆農(nong)(nong)業(ye)(ye)博覽會銀(yin)質獎產(chan)品(pin)(pin)(pin)”。 巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)晚(wan)(wan)熟、耐(nai)貯(zhu)藏、外觀艷麗,富含氨基酸,營養(yang)豐富,深(shen)受消費(fei)者青(qing)睞,市場(chang)供不應求(qiu)。2009年(nian)(nian)(nian)(nian)巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)彝(yi)族(zu)回(hui)族(zu)自(zi)(zi)(zi)治縣(xian)(xian)綠(lv)源林(lin)(lin)果(guo)(guo)有(you)(you)限責任公(gong)司(si)生產(chan)的(de)紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)獲得了(le)“綠(lv)色食(shi)品(pin)(pin)(pin)A級”認證(zheng)。2011年(nian)(nian)(nian)(nian),巍(wei)(wei)(wei)(wei)(wei)山(shan)(shan)(shan)(shan)紅(hong)雪(xue)(xue)(xue)(xue)(xue)梨(li)(li)被(bei)云(yun)南(nan)(nan)省列(lie)為(wei)(wei)(wei)農(nong)(nong)業(ye)(ye)地方標準示范項目。
二(er).自然生態環(huan)境和人(ren)文(wen)歷史(shi)因素(su)
(1)地質地貌 種(zhong)(zhong)植區地勢(shi)由西北(bei)向(xiang)東南傾(qing)斜和降低,西部為(wei)(wei)(wei)高山(shan)峽谷,東部為(wei)(wei)(wei)高山(shan),中間(jian)為(wei)(wei)(wei)巍山(shan)壩子,最高海(hai)拔(ba)(ba)3037 m,最低海(hai)拔(ba)(ba)1146 m,平均海(hai)拔(ba)(ba)1780 m。適(shi)宜種(zhong)(zhong)植的海(hai)拔(ba)(ba)為(wei)(wei)(wei)1700m~2400m,土壤主要(yao)類(lei)型以(yi)紫色土和紅壤土為(wei)(wei)(wei)主, PH值5.6~7.2的山(shan)區半山(shan)區及(ji)緩坡地,土壤有機質含量高,疏松、透氣(qi)、排(pai)水良好(hao)。
(2)水文情況(kuang) 種植(zhi)區(qu)主要(yao)河流有漾(yang)江(jiang)和西河,流經縣內十個鄉鎮,漾(yang)江(jiang)歸(gui)(gui)入瀾滄(cang)江(jiang)水系,西河歸(gui)(gui)入紅(hong)河水系。種植(zhi)區(qu)水資(zi)源豐富,水質優良。
(3)氣候情況 種植(zhi)區屬(shu)北亞熱帶高(gao)原季風氣候,境(jing)內山勢磅礴,峻嶺(ling)逶迤,河谷、山地(di)、壩子相間分(fen)布,在(zai)特定的地(di)理條件(jian)下形成了冬無(wu)嚴寒(han)、夏(xia)無(wu)酷暑、冬干夏(xia)雨、干濕(shi)季分(fen)明和氣候水平(ping)分(fen)布復雜,“立體氣候”明顯(xian)的地(di)域性氣候及立體性氣候特征。年最高(gao)氣溫(wen)32.4℃,最低氣溫(wen)-1.1℃,年平(ping)均(jun)氣溫(wen)15.8℃;無(wu)霜(shuang)期246天;年平(ping)均(jun)日(ri)照(zhao)時數為(wei)2342.8小時,冬半(ban)年多于夏(xia)半(ban)年;年平(ping)均(jun)降雨量800~1000mm,主要集中(zhong)在(zai)7、8月份(fen)。
三.地域范圍
巍山紅雪(xue)梨產于云(yun)南(nan)(nan)省(sheng)大(da)理(li)白(bai)族(zu)自治(zhi)州巍山彝(yi)族(zu)回(hui)族(zu)自治(zhi)縣境內,種植(zhi)區域涉及馬鞍山鄉(xiang)(xiang)、巍寶(bao)山鄉(xiang)(xiang)、五印鄉(xiang)(xiang)、紫金鄉(xiang)(xiang)、南(nan)(nan)詔鎮、廟(miao)街鎮、大(da)倉(cang)鎮、永建(jian)鎮、牛街鄉(xiang)(xiang)、青華鄉(xiang)(xiang)十個鄉(xiang)(xiang)鎮,地理(li)坐(zuo)標為:東(dong)經99°55′~100°25′、北緯24°56′~25°32′之(zhi)間,東(dong)西寬47㎞,南(nan)(nan)北長(chang)65㎞,種植(zhi)總面積2000公頃,年產量50000噸(dun)。
四.產品(pin)品(pin)質特(te)性特(te)征
(1)外在感(gan)官特征 巍山紅(hong)雪梨成年果(guo)(guo)樹樹高(gao)1.5m以上(shang)(shang),整形(xing)修剪多為主干疏散分層形(xing)和自然開(kai)(kai)心形(xing),葉(xie)翠綠;是(shi)一種晚(wan)熟優質水果(guo)(guo),每年2月底(di)3月初開(kai)(kai)花,10—12月成熟;耐貯藏,可(ke)貯藏到翌年梨花盛(sheng)開(kai)(kai)時節;果(guo)(guo)卵圓形(xing),大小(xiao)整齊,平均單果(guo)(guo)重150~250克,表皮(pi)底(di)色(se)發黃,三分之二(er)以上(shang)(shang)果(guo)(guo)面鮮紅(hong)色(se),似胭脂紅(hong),色(se)澤鮮艷美觀,果(guo)(guo)肉(rou)白色(se),肉(rou)質細而質脆、汁多無(wu)渣(zha)、酸甜適中(zhong)。
(2)內在品(pin)質指標 巍(wei)山(shan)紅(hong)雪梨(li)口感(gan)嫩脆,汁多、無渣、核(he)小,酸(suan)甜(tian)適(shi)度,營(ying)養豐富, 耐儲藏。可(ke)溶性固形(xing)物≥8.0%;硬度≥2.8 kg f/平方厘米(mi);總糖(tang)≥4.8%;可(ke)滴定(ding)酸(suan)≤3.0g/kg;總氨基酸(suan)≥1.8%;維生素(su)C≥2.0㎎/100g。
(3)安全要求 巍(wei)山紅雪(xue)梨(li)產(chan)地環境按照《NY5013-2006 無公害食品(pin)林果類產(chan)品(pin)產(chan)地環境條件(jian)》執行;產(chan)品(pin)質量(liang)符合《GB/T 10650-2008鮮(xian)梨(li)》產(chan)品(pin)標準。
五.特定生產方式
(1)產地選擇 一般(ban)選擇海(hai)拔1700~2400m,土壤主(zhu)要類(lei)型(xing)以(yi)紫(zi)色土和紅壤土為(wei)主(zhu),PH值(zhi)5.6~7.2,年(nian)平均氣溫15.8℃,無霜期246天;年(nian)平均日照時數(shu)不低于(yu)2342.8小時,年(nian)平均降雨量(liang)800~1000mm的(de)山區半山區及緩坡地,土壤有機質含量(liang)高(gao),疏松、透氣、排水(shui)良好,背風向陽,周圍無柏樹(shu)和泡桐種植的(de)地區種植。
(2)品(pin)種選擇 巍(wei)山紅(hong)雪梨選擇品(pin)種是(shi)種植(zhi)歷史悠久,屬(shu)于(yu)優質(zhi)晚(wan)熟(shu)耐儲藏且抗逆性(xing)、抗病(bing)性(xing)強的優良地(di)方品(pin)種。
(3)種植規程
①砧(zhen)木培育 苗(miao)地(di)選(xuan)擇(ze)(ze):選(xuan)擇(ze)(ze)地(di)勢(shi)平坦,土(tu)壤肥沃,土(tu)層(ceng)深(shen)厚,灌水、排水方便的(de)沙壤土(tu)或壤土(tu),周(zhou)邊環境無污(wu)染的(de)地(di)方。 苗(miao)木培育:選(xuan)擇(ze)(ze)本地(di)川梨作為砧(zhen)木,選(xuan)用種性(xing)純正,豐產性(xing)好,抗逆性(xing)、抗病(bing)性(xing)強,且五(wu)年(nian)以上結果株為采穗母樹的(de)巍山紅雪梨接穗。
②嫁(jia)(jia)接(jie)(jie) 嫁(jia)(jia)接(jie)(jie)以枝接(jie)(jie)為(wei)主,一般在早(zao)春(chun)樹液(ye)開始流動時(shi)進行(xing),以立春(chun)前(qian)后(hou)20天(tian)為(wei)宜,嫁(jia)(jia)接(jie)(jie)時(shi)把握好“快、平、凈、齊、緊”五個(ge)要領(ling),即(ji):嫁(jia)(jia)接(jie)(jie)操(cao)作時(shi)間短,速度快;使砧木(mu)和(he)接(jie)(jie)穗的切面光(guang)滑平整;保證(zheng)接(jie)(jie)穗和(he)砧木(mu)的切面清(qing)潔無(wu)污染;保證(zheng)砧木(mu)和(he)接(jie)(jie)穗的形(xing)成層(ceng)對齊;保證(zheng)包扎不漏(lou)氣,可提高嫁(jia)(jia)接(jie)(jie)成活力(li)。
③出圃(pu) 當苗高長(chang)至1m以(yi)上,直徑(jing)0.8cm以(yi)上時可出圃(pu)移栽,要求(qiu)梨苗根系(xi)生長(chang)完好,無病蟲害(hai)、無損(sun)傷(shang),無失水現(xian)象。
④建(jian)園 整地(di)(di)(di)(di):坡地(di)(di)(di)(di)應修筑梯地(di)(di)(di)(di)或魚鱗臺。按株(zhu)行距挖穴(溝(gou))寬80cm,深60cm的定植(zhi)(zhi)(zhi)(zhi)穴(溝(gou))。開(kai)挖時要(yao)把表(biao)(biao)土(tu)(tu)(tu)和心土(tu)(tu)(tu)分開(kai)堆放,定植(zhi)(zhi)(zhi)(zhi)穴(溝(gou))上下寬度(du)要(yao)保(bao)持一致。穴(溝(gou))挖好后,先填入(ru)30~40cm左右的作(zuo)物秸稈或綠肥,并將(jiang)表(biao)(biao)土(tu)(tu)(tu)加入(ru)踏緊,再用(yong)足(zu)量(liang)腐熟有機肥和少量(liang)化肥與土(tu)(tu)(tu)混合(he)填入(ru)。 栽植(zhi)(zhi)(zhi)(zhi)方式(shi)與密度(du):定植(zhi)(zhi)(zhi)(zhi)時,將(jiang)梨(li)苗主根(gen)(gen)剪(jian)除(chu)2~3cm,除(chu)去嫁接(jie)口(kou)薄膜(mo)(mo),嫁接(jie)口(kou)需(xu)露出地(di)(di)(di)(di)面5~10cm,踏實根(gen)(gen)部土(tu)(tu)(tu)壤(rang),培(pei)半徑50cm 左右樹(shu)(shu)盤(pan),并高于地(di)(di)(di)(di)面30㎝,澆足(zu)定根(gen)(gen)水(shui),然后用(yong)薄膜(mo)(mo)覆蓋。根(gen)(gen)據不同地(di)(di)(di)(di)形、地(di)(di)(di)(di)塊確(que)定種(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)(zhi)密度(du),常規株(zhu)行距4m×5m,密植(zhi)(zhi)(zhi)(zhi)株(zhu)行距4m×3m。 栽植(zhi)(zhi)(zhi)(zhi)時間:落葉后至發(fa)芽前(qian),時間為每(mei)年11月(yue)至第二年2月(yue)。 配(pei)置(zhi)授(shou)(shou)粉(fen)(fen)(fen)樹(shu)(shu):巍山紅雪梨(li)為異花授(shou)(shou)粉(fen)(fen)(fen)樹(shu)(shu)種(zhong)(zhong)(zhong),所以(yi)必(bi)須(xu)配(pei)置(zhi)花一致的授(shou)(shou)粉(fen)(fen)(fen)梨(li)樹(shu)(shu),授(shou)(shou)粉(fen)(fen)(fen)梨(li)樹(shu)(shu)品種(zhong)(zhong)(zhong)可用(yong)黃梨(li)、巍山本地(di)(di)(di)(di)蠻梨(li)、火把梨(li)作(zuo)為授(shou)(shou)粉(fen)(fen)(fen)樹(shu)(shu)。紅雪梨(li)與授(shou)(shou)粉(fen)(fen)(fen)樹(shu)(shu)配(pei)置(zhi)比例為8∶1;授(shou)(shou)粉(fen)(fen)(fen)樹(shu)(shu)應配(pei)置(zhi)在上風方口(kou)。
⑤土肥(fei)(fei)(fei)(fei)水(shui)管(guan)理 土壤(rang)(rang)管(guan)理:幼(you)年果(guo)園每(mei)年深(shen)翻(fan)(fan)擴穴1-2次(ci)(ci)(ci),成年果(guo)園每(mei)年全園深(shen)翻(fan)(fan)或(huo)隔行(xing)(株)深(shen)翻(fan)(fan)1-2次(ci)(ci)(ci),深(shen)度一(yi)般(ban)(ban)以(yi)(yi)(yi)30~40cm為(wei)宜。深(shen)翻(fan)(fan)時間在(zai)冬季(ji)落葉(xie)前(qian)(qian)進行(xing)。 肥(fei)(fei)(fei)(fei)水(shui)管(guan)理:基肥(fei)(fei)(fei)(fei)施(shi)用結合(he)土壤(rang)(rang)深(shen)翻(fan)(fan),以(yi)(yi)(yi)有機肥(fei)(fei)(fei)(fei)為(wei)主,可混加少量氮、磷、鉀(jia)素(su)化肥(fei)(fei)(fei)(fei)。追肥(fei)(fei)(fei)(fei),第(di)(di)一(yi)次(ci)(ci)(ci)在(zai)萌芽前(qian)(qian)后,以(yi)(yi)(yi)氮肥(fei)(fei)(fei)(fei)為(wei)主,每(mei)株(成年樹(shu))2.0~2.5kg;第(di)(di)二(er)次(ci)(ci)(ci)在(zai)花(hua)芽分化及(ji)果(guo)實膨大期,以(yi)(yi)(yi)速效(xiao)氮鉀(jia)肥(fei)(fei)(fei)(fei)為(wei)主,適(shi)當配合(he)磷肥(fei)(fei)(fei)(fei),施(shi)肥(fei)(fei)(fei)(fei)量略高于第(di)(di)一(yi)次(ci)(ci)(ci);第(di)(di)三次(ci)(ci)(ci)在(zai)果(guo)實生長(chang)后期,以(yi)(yi)(yi)鉀(jia)肥(fei)(fei)(fei)(fei)為(wei)主。其(qi)余時間根(gen)據(ju)具體情(qing)況(kuang)進行(xing)施(shi)肥(fei)(fei)(fei)(fei),施(shi)肥(fei)(fei)(fei)(fei)量以(yi)(yi)(yi)當地的土壤(rang)(rang)條(tiao)件和施(shi)肥(fei)(fei)(fei)(fei)特點確定(ding)。施(shi)肥(fei)(fei)(fei)(fei)方(fang)法(fa)采(cai)用溝施(shi),挖放射狀(zhuang)(zhuang)溝或(huo)在(zai)樹(shu)冠外圍挖環(huan)狀(zhuang)(zhuang)溝,溝深(shen)15cm~20cm。根(gen)外追肥(fei)(fei)(fei)(fei)可結合(he)噴藥施(shi)用,全年4~5次(ci)(ci)(ci),一(yi)般(ban)(ban)生長(chang)前(qian)(qian)期 2 次(ci)(ci)(ci),以(yi)(yi)(yi)氮肥(fei)(fei)(fei)(fei)為(wei)主;后期2~3次(ci)(ci)(ci),以(yi)(yi)(yi)磷、鉀(jia)肥(fei)(fei)(fei)(fei)為(wei)主。施(shi)肥(fei)(fei)(fei)(fei)應(ying)(ying)結合(he)灌水(shui),應(ying)(ying)根(gen)據(ju)土壤(rang)(rang)墑情(qing)及(ji)降雨情(qing)況(kuang)確定(ding)是(shi)否灌水(shui),一(yi)般(ban)(ban)全年共3~4次(ci)(ci)(ci)。我縣紅雪梨種(zhong)植區,冬春(chun)應(ying)(ying)注(zhu)意(yi)灌水(shui)尤其(qi)是(shi)春(chun)季(ji)梨樹(shu)開花(hua)前(qian)(qian)和開花(hua)后,夏(xia)季(ji)果(guo)實生長(chang)期要注(zhu)意(yi)水(shui)分供給的均衡(heng)性,以(yi)(yi)(yi)防出現(xian)裂果(guo)的現(xian)象。
⑥整形(xing)修(xiu)剪(jian) 根據(ju)栽培技(ji)術(shu)、立地條件不同而異,一般有主(zhu)(zhu)干(gan)疏(shu)散(san)分(fen)層(ceng)形(xing)、自(zi)然開(kai)心形(xing)。主(zhu)(zhu)干(gan)疏(shu)散(san)分(fen)層(ceng)形(xing):定干(gan)高(gao)度(du)(du)通(tong)常為(wei)80cm,下端50cm做主(zhu)(zhu)干(gan),上端30cm做整形(xing)帶;第一層(ceng)分(fen)布3個主(zhu)(zhu)枝(zhi)(zhi)(zhi),主(zhu)(zhu)枝(zhi)(zhi)(zhi)之(zhi)間(jian)(jian)的角度(du)(du)以120°為(wei)好,每(mei)個主(zhu)(zhu)枝(zhi)(zhi)(zhi)上配備3個側(ce)枝(zhi)(zhi)(zhi),第二層(ceng)分(fen)布2個主(zhu)(zhu)枝(zhi)(zhi)(zhi),每(mei)個主(zhu)(zhu)枝(zhi)(zhi)(zhi)上配備2個側(ce)枝(zhi)(zhi)(zhi),第三層(ceng)分(fen)布1個主(zhu)(zhu)枝(zhi)(zhi)(zhi),配以1~2個側(ce)枝(zhi)(zhi)(zhi);第一層(ceng)和第二層(ceng)之(zhi)間(jian)(jian)間(jian)(jian)距(ju)80~100cm,第二層(ceng)和第三層(ceng)之(zhi)間(jian)(jian)間(jian)(jian)距(ju)100~120cm,全樹(shu)高(gao)度(du)(du)控制在3~3.5m。自(zi)然開(kai)心形(xing):干(gan)高(gao)40cm~50cm,主(zhu)(zhu)枝(zhi)(zhi)(zhi)3~4個,斜直向上生(sheng)長,無中心干(gan),在主(zhu)(zhu)枝(zhi)(zhi)(zhi)上再向外分(fen)生(sheng)副(fu)主(zhu)(zhu)枝(zhi)(zhi)(zhi),共3~4層(ceng)。主(zhu)(zhu)枝(zhi)(zhi)(zhi)腰(yao)角70度(du)(du),大量結果時達(da)80度(du)(du),樹(shu)高(gao)控制在2~3m。
⑦疏果(guo) 疏果(guo)通常在(zai)落果(guo)高峰(feng)過后進行。一般幼果(guo)間距30cm~35cm。留果(guo)時掌(zhang)握選留第三個(ge)果(guo)或第四個(ge)果(guo)。對于開花(hua)量(liang)較少的年份,則應進行保花(hua)保果(guo),采取(qu)加強土肥水管(guan)理、果(guo)園放蜂、在(zai)盛(sheng)花(hua)期(qi)全樹噴0.3%硼砂(sha)和0.3%尿素及(ji)0.5%白砂(sha)糖混(hun)合(he)液等(deng)措施,提(ti)高座果(guo)率。
⑧病(bing)蟲(chong)害防(fang)治(zhi) 以預(yu)防(fang)為主,綜(zong)合防(fang)治(zhi)為原則,根據病(bing)蟲(chong)害的發生規律及(ji)時防(fang)治(zhi)。主要病(bing)蟲(chong)害有:黑(hei)星病(bing)、褐斑病(bing)、梨(li)食心蟲(chong)、蚜(ya)蟲(chong)、紅蜘(zhi)蛛、蝽象。防(fang)治(zhi)措施以物理防(fang)治(zhi)、生物防(fang)治(zhi)為主,化學防(fang)治(zhi)嚴禁使用國家禁止使用及(ji)高(gao)(gao)毒高(gao)(gao)殘留農(nong)藥。
(4)采收(shou) 采收(shou)期一般(ban)在10—12月,采收(shou)方法人工采收(shou),根據果(guo)實成熟(shu)度和(he)市場需求適時采收(shou)。要求采摘時輕拿(na)輕放,免碰傷(shang)、刺(ci)傷(shang)。果(guo)實下樹(shu)后要用專用竹籃(lan)或果(guo)框盛放。
(5)生(sheng)(sheng)產(chan)安全(quan)記錄 種植、施肥、病蟲害防治、包裝(zhuang)等(deng)全(quan)過程(cheng)都要有記錄,建立生(sheng)(sheng)產(chan)檔(dang)案,以便(bian)查閱。立生(sheng)(sheng)產(chan)檔(dang)案保存不低于2年(nian)。