有you機ji農nong業ye有you很hen多duo定ding義yi,目mu前qian要yao用yong簡jian短duan而er明ming確que的de語yu句ju來lai表biao達da有you機ji農nong業ye的de概gai念nian還hai不bu容rong易yi,通tong常chang人ren們men采cai用yong有you機ji農nong民min可ke以yi使shi用yong或huo不bu可ke以yi使shi用yong的de方fang法fa或huo物wu質zhi的de方fang法fa來lai定ding義yi有you機ji農nong業ye,因yin此ci把ba有you機ji農nong業ye簡jian稱cheng為wei不bu使shi用yong化hua學xue物wu質zhi的de農nong業ye。該gai定ding義yi盡jin管guan簡jian練lian明ming確que,但dan忽hu視shi了le有you機ji農nong業ye的de精jing華hua。會hui給gei初chu次ci接jie觸chu有you機ji農nong業ye概gai念nian的de人ren們men帶dai來lai一yi些xie誤wu解jie。
歐洲把有機農業描述為:一(yi)種(zhong)通(tong)過(guo)使(shi)用(yong)有(you)機(ji)肥(fei)料(liao)和(he)適(shi)當(dang)的(de)耕(geng)作(zuo)措(cuo)施(shi),以(yi)達(da)到(dao)提(ti)高(gao)土(tu)壤(rang)的(de)長(chang)效(xiao)費(fei)力(li)的(de)係(xi)統(tong)。有(you)機(ji)農(nong)業(ye)生(sheng)產(chan)中(zhong)仍(reng)然(ran)可(ke)以(yi)使(shi)用(yong)有(you)限(xian)的(de)礦(kuang)物(wu)質(zhi),但(dan)不(bu)允(yun)許(xu)使(shi)用(yong)化(hua)學(xue)肥(fei)料(liao)。通(tong)過(guo)自(zi)然(ran)的(de)方(fang)法(fa)而(er)不(bu)是(shi)通(tong)過(guo)化(hua)學(xue)物(wu)質(zhi)控(kong)製(zhi)雜(za)草(cao)和(he)病(bing)蟲(chong)害(hai)。
美(mei)國(guo)農(nong)業(ye)部(bu)的(de)官(guan)員(yuan)在(zai)考(kao)察(cha)歐(ou)洲(zhou)的(de)有(you)機(ji)農(nong)業(ye)之(zhi)後(hou),給(gei)有(you)機(ji)農(nong)業(ye)下(xia)了(le)一(yi)個(ge)比(bi)較(jiao)確(que)切(qie)的(de)定(ding)義(yi),即(ji)有(you)機(ji)農(nong)業(ye)是(shi)一(yi)種(zhong)完(wan)全(quan)不(bu)用(yong)或(huo)基(ji)本(ben)不(bu)用(yong)人(ren)工(gong)合(he)成(cheng)的(de)肥(fei)料(liao)、農藥、生產調節劑和畜禽飼料添加劑和生產體係。在這一體係中,在最大的可行範圍內盡可能地采用作物輪作、作物秸杆、畜禽烘肥、豆科作物、綠肥、農nong場chang以yi外wai的de有you機ji廢fei棄qi物wu和he生sheng物wu防fang治zhi病bing蟲chong害hai的de方fang法fa來lai保bao持chi土tu壤rang生sheng產chan力li和he耕geng性xing,供gong給gei作zuo物wu營ying養yang並bing防fang止zhi病bing蟲chong害hai和he雜za草cao的de一yi種zhong農nong業ye。盡jin管guan該gai定ding義yi還hai不bu夠gou全quan麵mian,但dan該gai定ding義yi描miao述shu了le有you機ji農nong業ye的de主zhu要yao特te征zheng,規gui定ding了le有you機ji農nong民min不bu能neng做zuo什shen麼me,應ying該gai做zuo什shen麼me。
國際有機農業運動聯合會(IFOAM)給有機農業下的定義為: 有機農業包括所有能促進環境、社會和經濟良性發展的農業生產係統。這些係統將妝地土壤肥力作為成功生產的關鍵。通過尊重植物、動物和景觀的自然能力,達到使農業和環境各方麵質量都最完善的目標。有機農業通過禁止使用化學合成的肥料、農nong藥yao和he藥yao品pin而er極ji大da地di減jian少shao外wai部bu物wu質zhi投tou入ru,相xiang反fan利li用yong強qiang有you力li的de自zi然ran規gui律lv來lai增zeng加jia農nong業ye產chan量liang和he抗kang病bing能neng力li。有you機ji農nong業ye堅jian持chi世shi界jie普pu遍bian可ke接jie受shou的de原yuan則ze,並bing據ju當dang地di的de社she會hui經jing濟ji、地理氣候和文化背景具體實施。因此,IFOAM強調和運行發展當地和地區水平的自我支持係統。從這個定義可以看出有機農業的目的是達到環境、社she會hui和he經jing濟ji三san大da效xiao益yi的de協xie調tiao發fa展zhan。有you機ji農nong業ye非fei常chang注zhu重zhong當dang地di土tu壤rang的de質zhi量liang,注zhu重zhong係xi統tong內nei營ying養yang物wu質zhi的de循xun環huan,注zhu重zhong農nong業ye生sheng產chan要yao遵zun循xun自zi然ran規gui律lv,並bing強qiang調tiao因yin地di製zhi宜yi的de原yuan則ze。
綜zong觀guan以yi上shang幾ji種zhong對dui有you機ji農nong業ye定ding義yi的de描miao述shu,可ke以yi認ren為wei有you機ji農nong業ye生sheng產chan是shi一yi種zhong強qiang調tiao以yi生sheng物wu學xue和he生sheng態tai學xue為wei理li論lun基ji礎chu並bing拒ju絕jue使shi用yong化hua學xue品pin的de農nong業ye生sheng產chan模mo式shi。有you機ji農nong業ye的de特te點dian可ke歸gui納na為wei三san點dian:
(1)建立一種多種種養結合的農業生產體係;
(2)係統內土壤、植物、動物和人類是相互聯係的有機整體;
(3)采用土地(生態環境)右以承受的方法進行耕作。
對有機農業的理解,容易產生以下幾方麵的誤解:
第一、有機農業就是指不用化學合成物質的農業。如果把有機農業簡單地說成為“在生產過程中,不使用人工合成的肥料、農藥、生長調節劑和飼料添加劑的農業”是(shi)不(bu)正(zheng)確(que)的(de)。有(you)機(ji)農(nong)業(ye)強(qiang)調(tiao)持(chi)續(xu)生(sheng)產(chan)體(ti)係(xi)的(de)建(jian)立(li)。不(bu)采(cai)取(qu)任(ren)何(he)管(guan)理(li)措(cuo)施(shi)的(de)農(nong)業(ye)生(sheng)產(chan)體(ti)係(xi)是(shi)不(bu)能(neng)持(chi)續(xu)發(fa)展(zhan)下(xia)去(qu)的(de),因(yin)此(ci)不(bu)是(shi)有(you)機(ji)農(nong)業(ye)生(sheng)產(chan)。
第二、有you機ji農nong業ye就jiu是shi傳chuan統tong農nong業ye,發fa展zhan有you機ji農nong業ye是shi在zai走zou回hui頭tou路lu。這zhe一yi點dian是shi絕jue大da多duo數shu人ren初chu次ci接jie觸chu有you機ji農nong業ye概gai念nian時shi最zui易yi產chan生sheng的de誤wu解jie,也ye是shi首shou先xian必bi須xu澄cheng清qing的de事shi實shi。有you機ji農nong業ye是shi由you一yi些xie科ke學xue家jia、哲學家為了保護我們賴以生存的土壤,生產健康的作物和食品的背景下提出來的,在世界經曆了“石油農業”帶來的能源、環境和儀器安全危機之後得以大力提倡和發展並超越現代農業思想的一種農業生產模式。它隻有在生物學、生sheng態tai學xue發fa展zhan到dao一yi定ding程cheng度du,在zai人ren們men認ren識shi到dao人ren與yu自zi然ran的de關guan係xi隻zhi有you協xie調tiao起qi來lai才cai能neng促cu進jin人ren類lei進jin步bu與yu發fa展zhan之zhi後hou才cai可ke能neng得de到dao認ren同tong和he推tui廣guang。因yin此ci可ke以yi說shuo有you機ji農nong業ye是shi人ren們men在zai高gao度du發fa達da的de科ke學xue技ji術shu基ji礎chu上shang重zhong新xin審shen視shi人ren與yu自zi然ran關guan係xi的de結jie果guo,而er不bu是shi複fu古gu和he倒dao退tui。有you機ji農nong業ye拒ju絕jue使shi用yong農nong用yong化hua學xue品pin,但dan決jue不bu是shi拒ju絕jue科ke學xue,相xiang反fan它ta是shi建jian立li在zai應ying用yong現xian代dai生sheng物wu學xue、生(sheng)態(tai)學(xue)知(zhi)識(shi),應(ying)用(yong)現(xian)代(dai)農(nong)業(ye)機(ji)械(xie),作(zuo)物(wu)品(pin)種(zhong),現(xian)代(dai)良(liang)好(hao)的(de)農(nong)業(ye)生(sheng)產(chan)管(guan)理(li)方(fang)法(fa)和(he)水(shui)土(tu)保(bao)持(chi)技(ji)術(shu),以(yi)及(ji)良(liang)好(hao)的(de)有(you)機(ji)廢(fei)棄(qi)物(wu)和(he)作(zuo)物(wu)秸(jie)杆(gan)和(he)處(chu)理(li)技(ji)術(shu),生(sheng)物(wu)防(fang)治(zhi)技(ji)術(shu)和(he)實(shi)踐(jian)。人(ren)們(men)聽(ting)到(dao)作(zuo)物(wu)生(sheng)產(chan)力(li)不(bu)用(yong)農(nong)藥(yao)、化肥就覺得不可思議,正是現代農業過分依賴化學和工業技術,忽略了環境和生態的體現。
第三、有機方法種植的作物產量肯定比現代種植的產量低。應該承認,在有機農業生產體係建立期間(有機轉換期間),有you機ji作zuo物wu的de產chan量liang通tong常chang會hui比bi常chang規gui作zuo物wu的de產chan量liang低di。但dan從cong長chang遠yuan來lai看kan,一yi旦dan建jian立li良liang性xing的de有you機ji農nong業ye生sheng產chan體ti係xi,有you機ji生sheng產chan的de作zuo物wu產chan量liang並bing不bu一yi定ding會hui比bi常chang規gui作zuo物wu產chan量liang低di,整zheng個ge有you機ji體ti係xi的de生sheng產chan力li一yi定ding高gao於yu常chang規gui體ti係xi的de生sheng產chan力li。而er且qie產chan量liang高gao低di也ye是shi一yi相xiang對dui的de概gai念nian,通tong過guo超chao過guo係xi統tong可ke承cheng受shou的de外wai部bu物wu資zi的de投tou入ru來lai獲huo得de過guo高gao的de產chan量liang並bing不bu是shi有you機ji農nong業ye追zhui求qiu的de目mu標biao。
第四、有機農業和作物品質低、營(ying)養(yang)差(cha)。現(xian)在(zai)人(ren)們(men)通(tong)常(chang)認(ren)為(wei),由(you)於(yu)在(zai)有(you)機(ji)農(nong)業(ye)生(sheng)產(chan)中(zhong)不(bu)允(yun)許(xu)使(shi)用(yong)化(hua)學(xue)肥(fei)料(liao),作(zuo)物(wu)在(zai)生(sheng)長(chang)中(zhong)營(ying)養(yang)元(yuan)素(su)供(gong)應(ying)不(bu)夠(gou),因(yin)此(ci)作(zuo)物(wu)長(chang)勢(shi)肯(ken)定(ding)不(bu)好(hao),產(chan)品(pin)質(zhi)量(liang)肯(ken)定(ding)差(cha)。有(you)機(ji)農(nong)業(ye)強(qiang)調(tiao)種(zhong)植(zhi)業(ye)的(de)平(ping)衡(heng),以(yi)及(ji)有(you)機(ji)生(sheng)產(chan)體(ti)係(xi)內(nei)養(yang)分(fen)的(de)循(xun)環(huan)和(he)補(bu)充(chong),通(tong)過(guo)有(you)機(ji)生(sheng)產(chan)措(cuo)施(shi)培(pei)肥(fei)土(tu)壤(rang)肥(fei)力(li),建(jian)立(li)待(dai)續(xu)的(de)作(zuo)物(wu)營(ying)養(yang)物(wu)質(zhi)供(gong)應(ying)體(ti)係(xi)。因(yin)此(ci)一(yi)旦(dan)有(you)機(ji)農(nong)業(ye)生(sheng)產(chan)體(ti)係(xi)建(jian)成(cheng),並(bing)形(xing)成(cheng)良(liang)性(xing)循(xun)環(huan),作(zuo)物(wu)在(zai)生(sheng)長(chang)中(zhong)可(ke)以(yi)從(cong)係(xi)統(tong)中(zhong)獲(huo)得(de)充(chong)分(fen)的(de)完(wan)全(quan)營(ying)養(yang),而(er)常(chang)規(gui)作(zuo)物(wu)生(sheng)產(chan)通(tong)常(chang)僅(jin)重(zhong)視(shi)少(shao)數(shu)幾(ji)種(zhong)營(ying)養(yang)元(yuan)素(su)的(de)供(gong)應(ying),一(yi)些(xie)作(zuo)物(wu)生(sheng)長(chang)的(de)必(bi)需(xu)營(ying)養(yang)物(wu)質(zhi)難(nan)以(yi)得(de)到(dao)補(bu)充(chong),導(dao)致(zhi)產(chan)品(pin)的(de)口(kou)味(wei)和(he)營(ying)養(yang)不(bu)好(hao),因(yin)此(ci)有(you)機(ji)種(zhong)植(zhi)的(de)作(zuo)物(wu)品(pin)質(zhi)不(bu)會(hui)比(bi)常(chang)規(gui)的(de)作(zuo)物(wu)差(cha),相(xiang)反(fan)有(you)機(ji)生(sheng)產(chan)的(de)產(chan)品(pin)其(qi)口(kou)感(gan)好(hao)、味道正是人們的普遍常識。
第五、有you機ji食shi品pin一yi定ding是shi無wu汙wu染ran,不bu含han化hua學xue殘can留liu物wu質zhi。食shi品pin是shi否fou有you汙wu染ran物wu質zhi是shi一yi個ge相xiang對dui的de概gai念nian。自zi然ran界jie中zhong不bu存cun在zai絕jue對dui不bu含han任ren何he汙wu染ran物wu質zhi的de食shi品pin。隨sui著zhe高gao精jing密mi分fen析xi儀yi器qi的de檢jian測ce限xian的de提ti高gao,自zi然ran界jie中zhong即ji使shi再zai優you質zhi的de食shi品pin,也ye或huo多duo或huo少shao地di含han有you一yi些xie汙wu染ran物wu質zhi應ying該gai說shuo,有you機ji食shi品pin中zhong汙wu染ran物wu質zhi的de含han量liang比bi普pu通tong食shi品pin低di。但dan有you機ji食shi品pin並bing不bu是shi絕jue對dui無wu汙wu染ran。強qiang調tiao有you機ji食shi品pin的de無wu汙wu染ran特te性xing,僅jin會hui導dao致zhi人ren們men過guo份fen重zhong視shi對dui環huan境jing和he終zhong產chan品pin的de汙wu染ran狀zhuang況kuang的de分fen析xi,而er忽hu視shi對dui整zheng個ge生sheng產chan過guo程cheng的de全quan程cheng質zhi量liang控kong製zhi。
第六、youjinongyeshengchanjinjinshijiandandiyongyoujifeitidaihuafeideshiyong。weiletidaihuafei,zaiyoujishengchanzhongxuyaoshiyongdaliangdeyoujifei。ruguobuzhuyiyoujifeihekexueshiyongfangfaheyongliang,liruguoliangshiyonghuoguoduoshiyongshijianbuqiadang,qihouguobujinyaoyingxiangzuowudeshengchang,haihuiyingxiangzuowudepinzhi,shizuowuyishoubingchonghaiheweihai,yehuizaochenghuanjingwuran。
第七、youjinongyelaodonglitouruduo,chengbengao。yinggaichengren,youjinongyesuoxudelaodonglitouruyaobichangguinongyetouruduodeduo,tebiebiaoxianzailiyongnongyefeiqiwushidelaodonglitouru。youjinongyeshengchanchongfenliyonglenongyexitongdefeiqiwu,jianqingleduihuanjingdewuran,congerjianxiaoleshehuiyongyuzhilihuanjingwuransuohuafeidefeiyong,jianqingleyouyuhuanjingwuranduirentijiankangheshehuizaochengdezhijiehejianjiejingjisunshi。renmenzaijisuanyoujinongyehechangguinongyedetourushi,wangwanghushilezhexietourudezhenzhengjiazhi。
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