生產特點
(1)產地(di)(di)選擇:選擇在坡度(du)(du)在25°以(yi)(yi)(yi)下(xia)海(hai)拔高(gao)度(du)(du)為400-900米(mi)(mi)的(de)山區(qu)、丘(qiu)陵,坡度(du)(du)較高(gao)的(de)應修筑等高(gao)梯(ti)地(di)(di),平(ping)地(di)(di)和6°以(yi)(yi)(yi)下(xia)的(de)緩坡地(di)(di),栽植行(xing)南北向(xiang),5°-25°的(de)坡地(di)(di),按(an)等高(gao)線挖梯(ti)地(di)(di)種(zhong)植,并開好排灌(guan)溝。要求土(tu)壤肥沃,有機質(zhi)含量在1.0%以(yi)(yi)(yi)上(shang)。土(tu)層厚度(du)(du)在100厘米(mi)(mi)以(yi)(yi)(yi)上(shang),活土(tu)層在50厘米(mi)(mi)以(yi)(yi)(yi)上(shang)。地(di)(di)下(xia)水位在100厘米(mi)(mi)以(yi)(yi)(yi)下(xia)。PH值5.5-7.0之間(jian)。
(2)品(pin)種(zhong)選擇:天峨大果(guo)山(shan)楂分有果(guo)頂凹(ao)和果(guo)頂凸出(chu)(尖臀)兩個(ge)品(pin)種(zhong),生產(chan)上(shang)推廣果(guo)頂凹(ao)、果(guo)形(xing)(xing)(xing)園球形(xing)(xing)(xing)或扁圓形(xing)(xing)(xing)的品(pin)種(zhong)。
(3)生產(chan)過(guo)(guo)程管理:包括(kuo)農業投入品(pin)方面(mian)的(de)特殊(shu)使用(yong)規定。使大(da)果山楂產(chan)品(pin)質量達到無公害農產(chan)品(pin)要(yao)求(qiu),生產(chan)過(guo)(guo)程嚴格(ge)按照以下技術環節進行:
①育(yu)苗(miao)(miao)。在春(chun)節(jie)前播種,第(di)二(er)年3月(yue)初小苗(miao)(miao)大田移(yi)栽,5月(yue)底6月(yue)初采穗嫁(jia)(jia)接,也(ye)可以在8月(yue)中下旬至9月(yue)嫁(jia)(jia)接,12月(yue)份出輔。苗(miao)(miao)木(mu)須根(gen)發達(da),粗度0.8厘(li)米,夏接苗(miao)(miao)高80厘(li)米以上,秋接苗(miao)(miao)高40厘(li)米以上,苗(miao)(miao)木(mu)清秀無病蟲害(hai)。
②定(ding)(ding)植(zhi)(zhi)(zhi)(zhi)。以冬(dong)春種(zhong)植(zhi)(zhi)(zhi)(zhi)為(wei)(wei)主,在元月到2月份期間種(zhong)植(zhi)(zhi)(zhi)(zhi)成活(huo)率最高。由于(yu)小(xiao)苗(miao)不(bu)(bu)落葉(xie)(不(bu)(bu)論(lun)實(shi)生(sheng)苗(miao)或嫁接苗(miao)),種(zhong)植(zhi)(zhi)(zhi)(zhi)時(shi)要剪除嫩苗(miao)和嫩葉(xie),只留老熟葉(xie)。 栽(zai)(zai)植(zhi)(zhi)(zhi)(zhi)密(mi)度:栽(zai)(zai)植(zhi)(zhi)(zhi)(zhi)密(mi)度為(wei)(wei)每(mei)公(gong)頃500-830株(zhu),即株(zhu)距(ju)(ju)3-4米(mi),行距(ju)(ju)4-5米(mi)。 整(zheng)地:根據計劃的(de)(de)株(zhu)行距(ju)(ju)挖深(shen)、寬為(wei)(wei)80厘米(mi)的(de)(de)定(ding)(ding)植(zhi)(zhi)(zhi)(zhi)穴或定(ding)(ding)植(zhi)(zhi)(zhi)(zhi)溝,每(mei)穴填25-30千(qian)克(ke)(ke)(ke)的(de)(de)雜(za)草(cao)綠(lv)肥,撒入0.5千(qian)克(ke)(ke)(ke)的(de)(de)石灰,1-2個(ge)月待(dai)雜(za)草(cao)綠(lv)肥腐爛沉實(shi)后,用表土與(yu)25-30千(qian)克(ke)(ke)(ke)的(de)(de)有機肥混合后回填待(dai)植(zhi)(zhi)(zhi)(zhi)。 栽(zai)(zai)植(zhi)(zhi)(zhi)(zhi)方法(fa):在待(dai)植(zhi)(zhi)(zhi)(zhi)穴內確(que)定(ding)(ding)定(ding)(ding)植(zhi)(zhi)(zhi)(zhi)點,挖深(shen)、寬為(wei)(wei)30厘米(mi)的(de)(de)栽(zai)(zai)植(zhi)(zhi)(zhi)(zhi)穴,定(ding)(ding)植(zhi)(zhi)(zhi)(zhi)時(shi)苗(miao)木根系要舒展,培土后提(ti)苗(miao)、扶正、踏實(shi),嫁接口要高出地面。整(zheng)理出直徑100厘米(mi)、高15-20厘米(mi)的(de)(de)樹(shu)盤,淋足(zu)定(ding)(ding)根水(shui),蓋上地膜保濕,樹(shu)苗(miao)定(ding)(ding)干高度40-50厘米(mi)。
③土(tu)(tu)、肥(fei)(fei)(fei)(fei)(fei)、水管(guan)理。 深(shen)翻(fan)改土(tu)(tu):在(zai)(zai)定(ding)植穴(xue)(溝(gou))外挖(wa)環狀溝(gou)或平(ping)行溝(gou),溝(gou)寬40厘(li)(li)米(mi)(mi)-60厘(li)(li)米(mi)(mi),深(shen)80厘(li)(li)米(mi)(mi),每次擴穴(xue)施(shi)(shi)(shi)入綠肥(fei)(fei)(fei)(fei)(fei)雜(za)(za)草15-20千(qian)(qian)克(ke)(ke)、石(shi)灰(hui)(hui)0.5千(qian)(qian)克(ke)(ke),放(fang)在(zai)(zai)底層,然(ran)后施(shi)(shi)(shi)25-30千(qian)(qian)克(ke)(ke)的有(you)機肥(fei)(fei)(fei)(fei)(fei),有(you)機肥(fei)(fei)(fei)(fei)(fei)要(yao)與回填土(tu)(tu)混合,中耕(geng):果(guo)(guo)(guo)(guo)園(yuan)樹(shu)盤(pan)在(zai)(zai)生(sheng)長季(ji)節降(jiang)雨或灌(guan)水后,及時(shi)中耕(geng)除(chu)草,保(bao)持(chi)(chi)土(tu)(tu)壤(rang)疏松,也可(ke)結合追(zhui)肥(fei)(fei)(fei)(fei)(fei)進行,中耕(geng)深(shen)度(du)(du)5-10厘(li)(li)米(mi)(mi)。 種植綠肥(fei)(fei)(fei)(fei)(fei)和行間(jian)(jian)(jian)生(sheng)草或間(jian)(jian)(jian)種作(zuo)物(wu):秋(qiu)冬季(ji)播種苕子、肥(fei)(fei)(fei)(fei)(fei)田(tian)蘿卜、油(you)菜(cai)等(deng);不(bu)能(neng)種植玉(yu)米(mi)(mi)、木(mu)薯、紅薯等(deng)高桿(gan)、爭肥(fei)(fei)(fei)(fei)(fei)類作(zuo)物(wu)。 基肥(fei)(fei)(fei)(fei)(fei):冬季(ji)施(shi)(shi)(shi)入,以(yi)農家肥(fei)(fei)(fei)(fei)(fei)、土(tu)(tu)雜(za)(za)肥(fei)(fei)(fei)(fei)(fei)為(wei)(wei)主(zhu)(zhu)(zhu),可(ke)混合少(shao)量磷肥(fei)(fei)(fei)(fei)(fei)。施(shi)(shi)(shi)肥(fei)(fei)(fei)(fei)(fei)量,盛(sheng)果(guo)(guo)(guo)(guo)期(qi)果(guo)(guo)(guo)(guo)園(yuan)每666.7平(ping)方米(mi)(mi)施(shi)(shi)(shi)2500-3000千(qian)(qian)克(ke)(ke)。挖(wa)施(shi)(shi)(shi)肥(fei)(fei)(fei)(fei)(fei)溝(gou)深(shen)60-80厘(li)(li)米(mi)(mi)左(zuo)右,大(da)果(guo)(guo)(guo)(guo)山楂(zha)是嗜鈣果(guo)(guo)(guo)(guo)樹(shu),熟石(shi)灰(hui)(hui)作(zuo)鈣肥(fei)(fei)(fei)(fei)(fei)不(bu)可(ke)缺少(shao),否則(ze)生(sheng)長不(bu)良(liang),初結果(guo)(guo)(guo)(guo)樹(shu)結合施(shi)(shi)(shi)農家肥(fei)(fei)(fei)(fei)(fei)株(zhu)(zhu)施(shi)(shi)(shi)石(shi)灰(hui)(hui)0.5千(qian)(qian)克(ke)(ke),盛(sheng)果(guo)(guo)(guo)(guo)期(qi)株(zhu)(zhu)施(shi)(shi)(shi)石(shi)灰(hui)(hui)1千(qian)(qian)克(ke)(ke)。 土(tu)(tu)壤(rang)追(zhui)肥(fei)(fei)(fei)(fei)(fei):第一次追(zhui)肥(fei)(fei)(fei)(fei)(fei)在(zai)(zai)開(kai)花(hua)前15天施(shi)(shi)(shi)下,以(yi)氮(dan)肥(fei)(fei)(fei)(fei)(fei)為(wei)(wei)主(zhu)(zhu)(zhu),幼(you)樹(shu)株(zhu)(zhu)施(shi)(shi)(shi)尿素0.1-0.2千(qian)(qian)克(ke)(ke),盛(sheng)果(guo)(guo)(guo)(guo)樹(shu)株(zhu)(zhu)施(shi)(shi)(shi)0.3-0.5千(qian)(qian)克(ke)(ke);第二次花(hua)芽分化及果(guo)(guo)(guo)(guo)實(shi)膨(peng)大(da)期(qi),以(yi)磷鉀(jia)為(wei)(wei)主(zhu)(zhu)(zhu),磷、鉀(jia)比例為(wei)(wei)1:1,株(zhu)(zhu)施(shi)(shi)(shi)普(pu)鈣0.5-1千(qian)(qian)克(ke)(ke),硫酸(suan)鉀(jia)0.3-0.4千(qian)(qian)克(ke)(ke);第三次在(zai)(zai)果(guo)(guo)(guo)(guo)實(shi)生(sheng)長后期(qi),以(yi)鉀(jia)肥(fei)(fei)(fei)(fei)(fei)為(wei)(wei)主(zhu)(zhu)(zhu),可(ke)株(zhu)(zhu)施(shi)(shi)(shi)硫酸(suan)鉀(jia)0.5千(qian)(qian)克(ke)(ke)。 葉面(mian)追(zhui)肥(fei)(fei)(fei)(fei)(fei):全年4-5次,一般生(sheng)長前期(qi)2次,以(yi)氮(dan)肥(fei)(fei)(fei)(fei)(fei)為(wei)(wei)主(zhu)(zhu)(zhu),后期(qi)2-3次,以(yi)磷、鉀(jia)肥(fei)(fei)(fei)(fei)(fei)為(wei)(wei)主(zhu)(zhu)(zhu),葉面(mian)噴肥(fei)(fei)(fei)(fei)(fei)宜避開(kai)高溫(wen)時(shi)間(jian)(jian)(jian),多種肥(fei)(fei)(fei)(fei)(fei)料混施(shi)(shi)(shi)時(shi),總濃(nong)度(du)(du)不(bu)得超過0.5%,且以(yi)互不(bu)反應為(wei)(wei)原則(ze)。 水分管(guan)理:能(neng)排能(neng)灌(guan),保(bao)持(chi)(chi)土(tu)(tu)壤(rang)濕度(du)(du)相對穩(wen)定(ding),以(yi)滴灌(guan)為(wei)(wei)最好。
④整(zheng)形(xing)(xing)修剪(jian)(jian)。 開(kai)心形(xing)(xing):適合(he)相對(dui)比較密(mi)(mi)植的(de)果(guo)園,干高40-60厘米(mi),主枝(zhi)(zhi)數量3 -4個(ge)(ge)(ge),分枝(zhi)(zhi)角(jiao)度40°-60°,冠幅(fu)控制在3-4米(mi)以內(nei)(nei)。 分層(ceng)(ceng)形(xing)(xing):第一(yi)層(ceng)(ceng)3個(ge)(ge)(ge)或4個(ge)(ge)(ge)主枝(zhi)(zhi),第二層(ceng)(ceng)2個(ge)(ge)(ge)或3個(ge)(ge)(ge)主枝(zhi)(zhi),兩層(ceng)(ceng)相距60 -80厘米(mi)。 修剪(jian)(jian):以冬剪(jian)(jian)為主,幼樹重點整(zheng)理(li)好樹形(xing)(xing),掛果(guo)樹重點是及時剪(jian)(jian)除病蟲枝(zhi)(zhi)、纖弱枝(zhi)(zhi)、徒(tu)長(chang)枝(zhi)(zhi)和過密(mi)(mi)的(de)交叉枝(zhi)(zhi)、重疊枝(zhi)(zhi)。及時拉枝(zhi)(zhi),調整(zheng)主枝(zhi)(zhi)開(kai)張角(jiao)度,剪(jian)(jian)除影響樹冠內(nei)(nei)通風(feng)透光(guang)的(de)過密(mi)(mi)枝(zhi)(zhi)、病蟲枝(zhi)(zhi)和擾亂(luan)樹形(xing)(xing)的(de)徒(tu)長(chang)枝(zhi)(zhi)。
⑤花(hua)(hua)果(guo)(guo)(guo)管(guan)理。在開花(hua)(hua)盛期,噴布1000倍綠(lv)旺一(yi)號+0.2%硼(peng)砂+0.2%蔗糖(tang)液,謝(xie)花(hua)(hua)后可用0.3%磷酸二氫鉀或0.1%硫酸亞鐵、0.1%綠(lv)旺一(yi)號等連噴2-3次。初結果(guo)(guo)(guo)樹,在謝(xie)花(hua)(hua)后及(ji)時環割或環扎保果(guo)(guo)(guo);在6月底進(jin)行環剝(bo)控(kong)梢,壯果(guo)(guo)(guo)促花(hua)(hua)。 疏果(guo)(guo)(guo):在花(hua)(hua)后1個月進(jin)行疏果(guo)(guo)(guo),疏去小果(guo)(guo)(guo)、病(bing)蟲果(guo)(guo)(guo)、畸(ji)形果(guo)(guo)(guo)。
⑥病蟲害防治。 農業防治:加強水肥管理,合理控制負載,保持樹勢健壯,提高樹體抗病力;合理修剪,保證園內和樹冠內通風透光,惡化病蟲生長環境,搞好冬季清園,清除枯枝落葉落果,樹盤翻土,剪除病蟲枝果,減少病蟲源,降低病蟲基數。 物理防治:萌芽開始,掛黃板,粘殺蚜蟲,5月初安裝頻振式殺蟲燈,誘殺各種蛾、螟類害蟲。 生物防治:保護瓢蟲、草蛉,人工釋放捕食螨等昆蟲天敵。利用昆蟲性外激素誘殺干擾成蟲交配。 化學(xue)防(fang)(fang)治(zhi)(zhi):主要病(bing)(bing)(bing)(bing)(bing)(bing)蟲(chong)(chong)(chong)(chong)害:包(bao)括裂(lie)(lie)(lie)皮(pi)病(bing)(bing)(bing)(bing)(bing)(bing)、炭(tan)(tan)疽(ju)病(bing)(bing)(bing)(bing)(bing)(bing)、白(bai)粉(fen)病(bing)(bing)(bing)(bing)(bing)(bing)、銹(xiu)粉(fen)病(bing)(bing)(bing)(bing)(bing)(bing)、葉(xie)(xie)(xie)斑(ban)病(bing)(bing)(bing)(bing)(bing)(bing)等(deng)(deng)病(bing)(bing)(bing)(bing)(bing)(bing)害和(he)(he)蚜蟲(chong)(chong)(chong)(chong)類(lei)、尺蠖、卷(juan)葉(xie)(xie)(xie)蟲(chong)(chong)(chong)(chong)類(lei)、蝽象和(he)(he)大果(guo)(guo)山(shan)楂(zha)(zha)(zha)果(guo)(guo)螟等(deng)(deng)害蟲(chong)(chong)(chong)(chong)。 落(luo)葉(xie)(xie)(xie)至萌(meng)芽前:重(zhong)點(dian)(dian)防(fang)(fang)治(zhi)(zhi)裂(lie)(lie)(lie)皮(pi)病(bing)(bing)(bing)(bing)(bing)(bing)和(he)(he)山(shan)楂(zha)(zha)(zha)果(guo)(guo)螟。結合(he)冬季清(qing)(qing)園(yuan),剪(jian)除病(bing)(bing)(bing)(bing)(bing)(bing)蟲(chong)(chong)(chong)(chong)枝梢(shao)、病(bing)(bing)(bing)(bing)(bing)(bing)僵果(guo)(guo)、蟲(chong)(chong)(chong)(chong)干果(guo)(guo),刮除病(bing)(bing)(bing)(bing)(bing)(bing)瘤、病(bing)(bing)(bing)(bing)(bing)(bing)斑(ban)等(deng)(deng),清(qing)(qing)除落(luo)葉(xie)(xie)(xie)、雜(za)草、落(luo)果(guo)(guo),集中深(shen)埋或(huo)燒毀,并(bing)噴一次(ci)3-5波美度的(de)石硫合(he)刷。對裂(lie)(lie)(lie)皮(pi)病(bing)(bing)(bing)(bing)(bing)(bing)病(bing)(bing)(bing)(bing)(bing)(bing)部(bu)刮除至健康部(bu)位后,用1:1:10波爾(er)多漿或(huo)1000倍四(si)環(huan)素涂刷,再用地膜包(bao)扎(zha)。 萌(meng)芽至幼果(guo)(guo)期:重(zhong)點(dian)(dian)防(fang)(fang)治(zhi)(zhi)炭(tan)(tan)疽(ju)病(bing)(bing)(bing)(bing)(bing)(bing)、白(bai)粉(fen)病(bing)(bing)(bing)(bing)(bing)(bing)、鐵銹(xiu)病(bing)(bing)(bing)(bing)(bing)(bing)和(he)(he)蚜蟲(chong)(chong)(chong)(chong)、卷(juan)葉(xie)(xie)(xie)蟲(chong)(chong)(chong)(chong)類(lei)。防(fang)(fang)治(zhi)(zhi)藥(yao)劑有(you):三唑酮(tong)、神奇、佳(jia)禾定(ding)、氟虎。 壯果(guo)(guo)期至采收期:重(zhong)點(dian)(dian)防(fang)(fang)治(zhi)(zhi)裂(lie)(lie)(lie)皮(pi)病(bing)(bing)(bing)(bing)(bing)(bing)、炭(tan)(tan)疽(ju)病(bing)(bing)(bing)(bing)(bing)(bing)、葉(xie)(xie)(xie)斑(ban)病(bing)(bing)(bing)(bing)(bing)(bing)、大果(guo)(guo)山(shan)楂(zha)(zha)(zha)螟、蝽象、蚜蟲(chong)(chong)(chong)(chong)、尺蠖等(deng)(deng)。防(fang)(fang)治(zhi)(zhi)、炭(tan)(tan)疽(ju)病(bing)(bing)(bing)(bing)(bing)(bing)、葉(xie)(xie)(xie)斑(ban)病(bing)(bing)(bing)(bing)(bing)(bing)的(de)藥(yao)劑有(you)神奇。防(fang)(fang)治(zhi)(zhi)山(shan)楂(zha)(zha)(zha)果(guo)(guo)螟、蝽蟓(xiang)、蚜蟲(chong)(chong)(chong)(chong)、尺蠖的(de)藥(yao)劑有(you):高效氯(lv)氟氰菊酯、佳(jia)禾定(ding)、標(biao)能、氟虎。 果(guo)(guo)實采果(guo)(guo)前后:重(zhong)點(dian)(dian)防(fang)(fang)治(zhi)(zhi)裂(lie)(lie)(lie)皮(pi)病(bing)(bing)(bing)(bing)(bing)(bing)、葉(xie)(xie)(xie)斑(ban)病(bing)(bing)(bing)(bing)(bing)(bing)和(he)(he)山(shan)楂(zha)(zha)(zha)果(guo)(guo)螟、尺蠖等(deng)(deng)病(bing)(bing)(bing)(bing)(bing)(bing)蟲(chong)(chong)(chong)(chong)。
(4)果(guo)實(shi)采(cai)(cai)收(shou)的規定(ding):根據果(guo)實(shi)成熟(shu)度,用途(tu)和市場需(xu)求,綜合確定(ding)采(cai)(cai)收(shou)時(shi)期(qi)(qi),分(fen)期(qi)(qi)采(cai)(cai)收(shou),采(cai)(cai)收(shou)時(shi)注(zhu)(zhu)意輕拿輕放,避免機械損傷,并(bing)按(an)標準(zhun)分(fen)級包裝,注(zhu)(zhu)明(ming)品種、數量、規格、產地及生產者。
(5)生產(chan)記(ji)(ji)錄要求:天峨縣大(da)果山楂生產(chan)過程要建立(li)生產(chan)檔(dang)案,記(ji)(ji)錄投入品的名(ming)稱、使用(yong)時間、次(ci)數、用(yong)量、使用(yong)方法、收獲日期等,全面(mian)記(ji)(ji)載(zai)并妥善保存。
自然生態(tai)環境和人(ren)文歷(li)史因(yin)素
(1)地(di)(di)(di)形地(di)(di)(di)貌(mao):天(tian)峨大(da)(da)果山(shan)楂種植區(qu)(qu)地(di)(di)(di)處云貴高(gao)(gao)原與廣西丘陵(ling)過渡(du)地(di)(di)(di)帶,基本(ben)地(di)(di)(di)貌(mao)成型(xing)于中生(sheng)代泥盆紀,屬鳳(feng)凰山(shan)脈和(he)東(dong)鳳(feng)嶺山(shan)脈交錯區(qu)(qu),由頁巖(yan)、硅(gui)質頁巖(yan)、泥巖(yan)、沙頁巖(yan)、砂巖(yan)、石(shi)灰巖(yan)和(he)洪積(ji)物、河流沖(chong)積(ji)物等組成復雜的地(di)(di)(di)質結構(gou)。地(di)(di)(di)貌(mao)類型(xing)大(da)(da)體分為剝蝕侵蝕中低山(shan)山(shan)地(di)(di)(di)地(di)(di)(di)貌(mao)區(qu)(qu)和(he)丘陵(ling)地(di)(di)(di)貌(mao)區(qu)(qu)。海拔最低點205米(mi)(mi),最高(gao)(gao)點1419米(mi)(mi)。天(tian)峨大(da)(da)果山(shan)楂最適宜生(sheng)長海拔高(gao)(gao)度400-900米(mi)(mi)。
(2)土(tu)(tu)壤狀況:天峨大果(guo)山(shan)楂(zha)產區土(tu)(tu)壤母(mu)質(zhi)主(zhu)要有洪積物、頁(ye)(ye)巖(yan)、沙(sha)(sha)頁(ye)(ye)巖(yan)、硅質(zhi)頁(ye)(ye)巖(yan)和砂巖(yan),主(zhu)要土(tu)(tu)種為沙(sha)(sha)頁(ye)(ye)巖(yan)黃紅壤和沙(sha)(sha)頁(ye)(ye)巖(yan)黃壤,厚(hou)度在(zai)80厘米(mi)以(yi)(yi)上,地下(xia)水(shui)位在(zai)1米(mi)以(yi)(yi)下(xia)。土(tu)(tu)壤質(zhi)地以(yi)(yi)壤土(tu)(tu)和沙(sha)(sha)壤土(tu)(tu)為主(zhu)。土(tu)(tu)壤團粒(li)結 構(gou)好,深厚(hou)肥(fei)沃,有良好的通透(tou)性和蓄水(shui)性,保水(shui)保肥(fei)能力強,非常適合大果(guo)山(shan)楂(zha)生長。
(3)水(shui)文情況:天峨大果山楂產(chan)區屬珠江流(liu)(liu)(liu)域西江段水(shui)系,水(shui)源豐富,水(shui)質清潔,沒有人(ren)為和工(gong)礦污染。干流(liu)(liu)(liu)紅(hong)水(shui)河由西北(bei)沿黔桂邊界(jie)流(liu)(liu)(liu)入,向(xiang)東南(nan)貫(guan)穿縣境(jing),全長112公(gong)里(li)(li),年平均(jun)流(liu)(liu)(liu)量(liang)為1580立方米(mi)/秒,年徑流(liu)(liu)(liu)量(liang)達(da)499.1億立方米(mi)。產(chan)區大小河流(liu)(liu)(liu)58條(tiao),集雨面(mian)積20平方公(gong)里(li)(li)以上的有42條(tiao),平均(jun)河網密度為0.22公(gong)里(li)(li)/平方公(gong)里(li)(li)。
(4)氣(qi)候情況:天(tian)峨大果山楂(zha)產區位于(yu)中亞熱(re)帶(dai)(dai)季(ji)風區,既受(shou)南嶺暖(nuan)溫(wen)(wen)(wen)(wen)帶(dai)(dai)的影響,亦受(shou)云貴高原(yuan)的氣(qi)候控(kong)制(zhi),冬(dong)暖(nuan)夏(xia)涼,四季(ji)明顯。年(nian)(nian)平均(jun)(jun)氣(qi)溫(wen)(wen)(wen)(wen)20℃,平均(jun)(jun)最高溫(wen)(wen)(wen)(wen)是7月達36.9℃,最低(di)(di)溫(wen)(wen)(wen)(wen)是1月,平均(jun)(jun)10.8℃,極端最高溫(wen)(wen)(wen)(wen)41.4℃,極端最低(di)(di)溫(wen)(wen)(wen)(wen)-2.9℃。年(nian)(nian)≥10℃持續日為298天(tian),活動積溫(wen)(wen)(wen)(wen)6475℃,年(nian)(nian)有(you)效積溫(wen)(wen)(wen)(wen)5540℃,全年(nian)(nian)無霜期330天(tian)以上(shang)。氣(qi)溫(wen)(wen)(wen)(wen)的地理分(fen)(fen)布為北部和(he)東北部低(di)(di),東南部高。山地氣(qi)候垂(chui)直分(fen)(fen)布特征明顯,據(ju)推算,海拔每(mei)升高100米溫(wen)(wen)(wen)(wen)度降(jiang)低(di)(di)0.57℃。年(nian)(nian)平均(jun)(jun)降(jiang)雨量1370.6毫米,年(nian)(nian)平均(jun)(jun)日照時數為1281.9小時。
(5)人文歷史情(qing)況(kuang):天(tian)(tian)峨大(da)(da)果(guo)(guo)(guo)(guo)(guo)山(shan)(shan)楂產(chan)于廣(guang)西(xi)西(xi)北(bei)部天(tian)(tian)峨縣(xian)(xian)(xian)境內(nei),是天(tian)(tian)峨縣(xian)(xian)(xian)名(ming)特優傳統果(guo)(guo)(guo)(guo)(guo)品(pin)之一,亦稱“紅(hong)(hong)花(hua)果(guo)(guo)(guo)(guo)(guo)”。其民(min)間栽培歷史至少有三百年(nian)(nian)以上。1935年(nian)(nian)天(tian)(tian)峨縣(xian)(xian)(xian)建(jian)制以前,產(chan)區隸屬百色市凌云縣(xian)(xian)(xian)和河(he)池市南(nan)丹縣(xian)(xian)(xian),民(min)國26年(nian)(nian)凌云縣(xian)(xian)(xian)縣(xian)(xian)(xian)志(zhi)在農林生產(chan)的(de)(de)“果(guo)(guo)(guo)(guo)(guo)類植(zhi)(zhi)物”中(zhong)(zhong)就(jiu)記(ji)載有“紅(hong)(hong)花(hua)果(guo)(guo)(guo)(guo)(guo)”,屬薔薇科。1994年(nian)(nian)《天(tian)(tian)峨縣(xian)(xian)(xian)志(zhi)》第八章第七節(jie)林副產(chan)品(pin)的(de)(de)“水(shui)果(guo)(guo)(guo)(guo)(guo)、干果(guo)(guo)(guo)(guo)(guo)”中(zhong)(zhong)記(ji)載有1952-1993年(nian)(nian)間“山(shan)(shan)楂”生產(chan)情(qing)況(kuang)。上世紀90年(nian)(nian)代末(mo)實(shi)施優果(guo)(guo)(guo)(guo)(guo)工程后,大(da)(da)果(guo)(guo)(guo)(guo)(guo)山(shan)(shan)楂產(chan)量(liang)(liang)和品(pin)質(zhi)有了大(da)(da)幅度提高,從1989年(nian)(nian)到2008年(nian)(nian),天(tian)(tian)峨大(da)(da)果(guo)(guo)(guo)(guo)(guo)山(shan)(shan)楂由原(yuan)來(lai)的(de)(de)556株(zhu)(其中(zhong)(zhong)掛果(guo)(guo)(guo)(guo)(guo)樹333株(zhu)),面積0.6公(gong)頃,年(nian)(nian)產(chan)量(liang)(liang)79.47噸,發展到種植(zhi)(zhi)面積2000公(gong)頃。2008年(nian)(nian),天(tian)(tian)峨大(da)(da)果(guo)(guo)(guo)(guo)(guo)山(shan)(shan)楂獲得了無(wu)公(gong)害水(shui)果(guo)(guo)(guo)(guo)(guo)產(chan)地認(ren)定和無(wu)公(gong)害水(shui)果(guo)(guo)(guo)(guo)(guo)產(chan)品(pin)認(ren)證。天(tian)(tian)峨大(da)(da)果(guo)(guo)(guo)(guo)(guo)山(shan)(shan)楂果(guo)(guo)(guo)(guo)(guo)大(da)(da)肉厚,果(guo)(guo)(guo)(guo)(guo)肉細膩,耐貯(zhu)運,營養價值高(鈣(gai)含量(liang)(liang)居各類水(shui)果(guo)(guo)(guo)(guo)(guo)首位),有很好的(de)(de)深加工潛力,主(zhu)要銷往(wang)廣(guang)東省的(de)(de)廣(guang)州、湛江、高州、化州等地,是天(tian)(tian)峨縣(xian)(xian)(xian)農民(min)的(de)(de)主(zhu)要經濟收入來(lai)源。
地域范圍
天(tian)峨縣(xian)(xian)(xian)(xian)地處北(bei)緯24°36′~25°28′,東(dong)經106°34′~107°19′,海拔400-900米;東(dong)鄰(lin)南丹縣(xian)(xian)(xian)(xian),東(dong)南接東(dong)蘭縣(xian)(xian)(xian)(xian),南連鳳(feng)山縣(xian)(xian)(xian)(xian),西倚樂業、凌云縣(xian)(xian)(xian)(xian),北(bei)與貴州省羅甸(dian)縣(xian)(xian)(xian)(xian)隔河相望;邊界(jie)線總長429公(gong)里(li),東(dong)西橫距76公(gong)里(li),南北(bei)縱距94公(gong)里(li)。天(tian)峨大果山楂生產(chan)地域范圍包(bao)括天(tian)峨縣(xian)(xian)(xian)(xian)向(xiang)陽鎮、六(liu)排(pai)鎮、岜暮(mu)鄉(xiang)、坡結(jie)鄉(xiang)、納(na)直鄉(xiang)、更新鄉(xiang)、八臘鄉(xiang)、三堡鄉(xiang)、下老鄉(xiang)等(deng)9個(ge)鄉(xiang)鎮共(gong)46個(ge)村,產(chan)地面(mian)積2000公(gong)頃,年(nian)總產(chan)量3.6萬噸。
品質特性特征
(1)外在感官特征:天峨(e)大果山楂果實扁圓形,果實指數0.8~0.9,果頂凹,有萼片宿存,果肩(jian)對稱,單(dan)果重(zhong)70克左右(you);果皮(pi)青黃(huang)色,有光澤(ze),果點小,不明(ming)顯。果肉(rou)黃(huang)白色,肉(rou)質細膩(ni),味酸(suan),有澀(se)味,回(hui)味生津甘甜。
(2)內在品(pin)質指(zhi)標:果(guo)實(shi)均勻度指(zhi)數(shu)0.65,果(guo)實(shi)硬度大于15千(qian)克(ke)(ke)力/平(ping)方(fang)厘(li)米(mi),鈣含(han)量(liang)為120-128毫克(ke)(ke)/千(qian)克(ke)(ke),居各類水果(guo)之首。可溶性固形物12.8-13.9%,維(wei)生(sheng)素C含(han)量(liang)10.2-10.9毫克(ke)(ke)/100克(ke)(ke),含(han)磷量(liang)8.5-9.0毫克(ke)(ke)/千(qian)克(ke)(ke),含(han)鐵(tie)量(liang)2.1-2.5毫克(ke)(ke)/100克(ke)(ke),鋅1.2-1.4毫克(ke)(ke)/千(qian)克(ke)(ke),維(wei)生(sheng)素E含(han)量(liang)2.15-2.45毫克(ke)(ke)/100克(ke)(ke),總糖4.9-5.93%,總酸1.80-1.85%,果(guo)膠1.3-1.5%,粗(cu)纖(xian)維(wei)1.28-1.49%,半(ban)纖(xian)維(wei)5.75-5.96%,總黃酮0.98-1.10%。
(3)安全(quan)要(yao)求:執行《GB18406.2-2001農產(chan)品安全(quan)質(zhi)量無(wu)公害(hai)水果安全(quan)要(yao)求》標(biao)準(zhun)。