{"id":62151,"date":"2022-08-29T11:02:18","date_gmt":"2022-08-29T09:02:18","guid":{"rendered":"https:\/\/www.bioecoactual.com\/?p=62151"},"modified":"2022-08-29T11:28:18","modified_gmt":"2022-08-29T09:28:18","slug":"relacs-investigar-alternatives-inputs-conflictius-agricultura-ecologica","status":"publish","type":"post","link":"https:\/\/www.bioecoactual.com\/ca\/2022\/08\/29\/relacs-investigar-alternatives-inputs-conflictius-agricultura-ecologica\/","title":{"rendered":"RELACS: 4 anys investigant alternatives als inputs conflictius en l&#8217;agricultura ecol\u00f2gica"},"content":{"rendered":"<p>L&#8217;objectiu del projecte <strong>RELACS<\/strong> (Replacement of Contentious Inputs in Organic Farming Systems) era desenvolupar i validar alternatives als inputs conflictius en la producci\u00f3 de cultius ecol\u00f2gics (coure, olis minerals, inputs nutritius) i en la producci\u00f3 ramadera (antihelm\u00edntics, antibi\u00f2tics i vitamines sint\u00e8tiques) i proposar fulls de ruta per a la seva aplicaci\u00f3. Partint d&#8217;una llista d&#8217;alternatives amb diferents nivells de maduresa tecnol\u00f2gica, el coordinador del projecte, <strong>Lucius Tamm<\/strong>, de <strong>FiBL Su\u00efssa<\/strong>, afirma que moltes tecnologies han aconseguit les fases finals necess\u00e0ries per a la seva aplicaci\u00f3 en les explotacions. Per a una r\u00e0pida adopci\u00f3 per part dels agricultors, es necessita suport pol\u00edtic a diversos nivells i fulls de ruta intel\u00b7ligents.<br \/>\n<!--more--><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-62144 aligncenter\" src=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2022\/08\/organic-farming.jpg\" alt=\"\" width=\"1200\" height=\"810\" srcset=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2022\/08\/organic-farming.jpg 1200w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2022\/08\/organic-farming-768x518.jpg 768w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2022\/08\/organic-farming-696x470.jpg 696w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2022\/08\/organic-farming-1068x721.jpg 1068w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2022\/08\/organic-farming-622x420.jpg 622w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h2>Alternatives al cobre<\/h2>\n<p>Segons la investigaci\u00f3, quatre productes alternatius per al coure van aconseguir nivells de preparaci\u00f3 tecnol\u00f2gica avan\u00e7ats (TRL superiors a 7). Aquests productes alternatius poden utilitzar-se en la <strong>vinya, la pomera i altres cultius hort\u00edcoles<\/strong>. Els productes pilot van proporcionar nivells de protecci\u00f3 prometedors en una \u00e0mplia gamma de cultius i condicions pedoclim\u00e0tiques, ja sigui com a aplicaci\u00f3 independent o en estrat\u00e8gies que combinen les alternatives amb baixes dosis de coure. <strong>Les alternatives, de ser autoritzades, podr\u00eden reduir l&#8217;\u00fas del coure en la vinya i la pomera en la d\u00e8cada vinent<\/strong>. La UE tamb\u00e9 hauria d&#8217;adaptar el proc\u00e9s de registre dels productes d&#8217;origen vegetal, que actualment \u00e9s molt llarg i requereix molt temps. No obstant aix\u00f2, el subministrament de quantitats suficients d&#8217;alternatives a un preu econ\u00f2micament viable continua sent un repte extraordinari.<\/p>\n<p>Per aix\u00f2, RELACS aconsella seguir una <strong>estrat\u00e8gia de minimitzaci\u00f3<\/strong> en lloc de la substituci\u00f3 total del coure. Aquesta estrat\u00e8gia de minimitzaci\u00f3 podria consistir en el cultiu de varietats resistents o en l&#8217;aplicaci\u00f3 de mesures preventives (per exemple, millora de la biodiversitat funcional, pr\u00e0ctiques de gesti\u00f3 dels cultius), l&#8217;\u00fas de subst\u00e0ncies alternatives i sistemes de suport a la decisi\u00f3 (DSS) que permetin reduir les taxes d&#8217;aplicaci\u00f3.<\/p>\n<blockquote><p>Tant l&#8217;oli mineral com les alternatives al coure presenten complicats procediments d&#8217;aprovaci\u00f3<\/p><\/blockquote>\n<h3>Alternativa per a substituir l&#8217;oli mineral (parafina)<\/h3>\n<p>En la producci\u00f3 de c\u00edtrics, es van provar dos productes alternatius per a substituir a l&#8217;oli mineral (parafina) contra plagues com escates, trips i \u00e0cars. A m\u00e9s, es va avan\u00e7ar en el desenvolupament de la disrupci\u00f3 vibrat\u00f2ria que imita els senyals de comunicaci\u00f3 ac\u00fastica espec\u00edfiques de la plaga per a pertorbar aix\u00ed el comportament d&#8217;aparellament i la reproducci\u00f3 de l&#8217;insecte plaga. Una reducci\u00f3 substancial de l&#8217;oli mineral, utilitzant productes menys problem\u00e0tics i t\u00e8cniques innovadores, sembla factible en un futur pr\u00f2xim. L&#8217;estrat\u00e8gia de reducci\u00f3 de l&#8217;oli mineral hauria d&#8217;incloure mesures per a <strong>millorar la biodiversitat<\/strong>, l&#8217;\u00fas de productes alternatius basats en extractes de plantes (Clitoria ternatea i oli essencial de taronja) i l&#8217;\u00fas de <strong>senyals vibratoris<\/strong>. Tant l&#8217;oli mineral com les alternatives al coure presenten complicats procediments d&#8217;aprovaci\u00f3.<\/p>\n<h4>Alternatives als antihelm\u00edntics<\/h4>\n<p>En el projecte RELACS es van provar dues alternatives als antihelm\u00edntics -un grup de f\u00e0rmacs antiparasitaris que expulsen als cucs par\u00e0sits (helmints) i altres par\u00e0sits interns. Els productes de biocontrol basats en Duddingtonia flagrans i l&#8217;alimentaci\u00f3 amb farratges rics en tanins com el bruc poden reduir l&#8217;\u00fas general d&#8217;antihelm\u00edntics entre un 30% i un 50% en el bestiar bov\u00ed, ov\u00ed i capr\u00ed ecol\u00f2gic. Ara b\u00e9,<strong> les alternatives proporcionen estrat\u00e8gies de control complement\u00e0ries per a reduir, per\u00f2 no substituir, els antihelm\u00edntics<\/strong>. La participaci\u00f3 dels veterinaris i l&#8217;adaptaci\u00f3 dels procediments de registre dels medicaments veterinaris basats en subst\u00e0ncies naturals seran fonamentals per a garantir l&#8217;acceptaci\u00f3 i la r\u00e0pida adopci\u00f3 de les alternatives.<\/p>\n<h4>Reducci\u00f3 dels antibi\u00f2tics<\/h4>\n<p>Es van explorar dues estrat\u00e8gies alternatives per a reduir l&#8217;\u00fas d&#8217;antibi\u00f2tics en les vaques lleteres ecol\u00f2giques: un <strong>protocol de planificaci\u00f3 de la salut i el benestar dels animals (AHWP)<\/strong>, que combina dades detallades espec\u00edfiques de la granja amb les <strong>Escoles de Camp per a Agricultors (ECA)<\/strong>, i l&#8217;\u00fas d&#8217;olis essencials per a controlar la mastitis lleu-moderada. Les ECA s\u00f3n reunions en les quals diversos ramaders comparteixen consells sobre problemes espec\u00edfics dels ramaders amfitrions, seguint un protocol de reuni\u00f3 establert. Tots dos enfocaments s\u00f3n prometedors per a la reducci\u00f3 dels antibi\u00f2tics, ja que no es va observar cap difer\u00e8ncia en la curaci\u00f3 de la mastitis cl\u00ednica (lleu o moderada) entre el tractament amb olis essencials i el tractament amb antibi\u00f2tics, ni tampoc es va observar cap impacte negatiu en la qualitat de la llet o en la salut i el benestar dels animals. La correcta aplicaci\u00f3 del protocol de planificaci\u00f3 de la salut i el benestar dels animals<strong> t\u00e9 un potencial molt elevat -de fins al 50%- per a reduir l&#8217;\u00fas d&#8217;antibi\u00f2tics en els tractaments de la mastitis en el bestiar lleter<\/strong>.<\/p>\n<blockquote><p>La correcta aplicaci\u00f3 del protocol de planificaci\u00f3 de la salut i el benestar dels animals t\u00e9 un potencial molt elevat per a reduir l&#8217;\u00fas d&#8217;antibi\u00f2tics en els tractaments de la mastitis en el bestiar lleter<\/p><\/blockquote>\n<p>No obstant aix\u00f2, \u00e9s necessari invertir fortament en serveis d&#8217;assessorament i implicar els veterinaris per a facilitar la seva adopci\u00f3. A mitj\u00e0 termini, les estrat\u00e8gies de reducci\u00f3 d&#8217;antibi\u00f2tics podrien complementar-se amb l&#8217;\u00fas d&#8217;olis essencials, encara que la recerca ha de confirmar-ho. La UE tamb\u00e9 hauria d&#8217;<strong>adaptar el proc\u00e9s d&#8217;autoritzaci\u00f3 dels productes veterinaris a base de plantes<\/strong>, que en l&#8217;actualitat \u00e9s molt llarg i requereix molt temps.<\/p>\n<h4>Suplements vitam\u00ednics<\/h4>\n<p>Els nivells actuals de suplementaci\u00f3 de vitamina E i altres vitamines en els remugants ecol\u00f2gics i de vitamines B2\/B12 en els ocells de corral ecol\u00f2giques poden reduir-se substancialment, ja que la reducci\u00f3 de les dietes vitam\u00edniques no va tenir un impacte negatiu en els animals ni en la qualitat de la llet o la carn en els assajos de FiBL. No \u00e9s possible una eliminaci\u00f3 completa, per\u00f2 hauria de ser possible reduir la vitamina E en les vaques lleteres ecol\u00f2giques en aproximadament un 50% i la vitamina B2 en els ocells de corral ecol\u00f2cs entre un 30 i un 50%. <strong>Aquestes reduccions poden tenir lloc a molt curt termini<\/strong>, ja que no existeixen limitacions t\u00e8cniques per a la ind\u00fastria dels pinsos. La identificaci\u00f3 d&#8217;un cep de llevat sense OGM que sobreprodueix riboflavina (vitamina B2) obre una opci\u00f3 per a una <strong>producci\u00f3 addicional sense OGM i no sint\u00e8tica<\/strong>.<\/p>\n<p>Actualment, la situaci\u00f3 \u00e9s prec\u00e0ria, ja que nom\u00e9s un prove\u00efdor europeu ofereix vitamina B2 produ\u00efda sense l&#8217;ajuda d&#8217;OGM. Per tant, \u00e9s essencial desenvolupar m\u00e9s el mercat i estimular la compet\u00e8ncia per a evitar qualsevol escassetat de vitamina B2. S&#8217;anima a la Comissi\u00f3 Europea a prendre una decisi\u00f3 clara sobre la situaci\u00f3 reglament\u00e0ria dels productes consistents en vitamina B2 produ\u00efts sense l&#8217;ajuda d&#8217;OGM, i haur\u00e0 d&#8217;adaptar el seu registre d&#8217;additius per a pinsos a nivell de la UE per a facilitar l&#8217;acc\u00e9s a les alternatives.<\/p>\n<h4>Aportacions externes de nutrients<\/h4>\n<p>L&#8217;\u00fas actual i la necessitat d&#8217;aportacions externes de nutrients en les explotacions agr\u00edcoles ecol\u00f2giques d&#8217;Europa es va avaluar en vuit regions d&#8217;estudi. En moltes zones, les aportacions addicionals de nitrogen (N) a l&#8217;agricultura ecol\u00f2gica s\u00f3n necess\u00e0ries per a augmentar la productivitat, mentre que les aportacions de fosfat (P) i potassi (K) s\u00f3n necess\u00e0ries per a evitar la mineria del s\u00f2l. Les dades de RELACS mostren que<strong> la import\u00e0ncia del subministrament de nutrients en l&#8217;agricultura ecol\u00f2gica s&#8217;ha subestimat fins ara<\/strong>. La disponibilitat limitada d&#8217;inputs per a la fertilitat del s\u00f2l \u00e9s el factor que m\u00e9s limita el rendiment en les explotacions ecol\u00f2giques sense exist\u00e8ncies. A m\u00e9s, la falta d&#8217;un subministrament rendible de nutrients per a les plantes impedeix l&#8217;augment de la producci\u00f3 vegetal ecol\u00f2gica m\u00e9s enll\u00e0 del 15 al 20% en moltes regions. No obstant aix\u00f2, \u00e9s possible reduir a mitj\u00e0 termini la depend\u00e8ncia de les explotacions ecol\u00f2giques del fem convencional i dels nutrients externs procedents de fonts no renovables mitjan\u00e7ant el <strong>reciclatge dels fluxos de residus socials<\/strong>. \u00c9s crucial que es garanteixi la seguretat i acceptabilitat d&#8217;aquests productes i que el sector ecol\u00f2gic acordi els criteris per al seu \u00fas.<\/p>\n<blockquote><p>L&#8217;estrat\u00e8gia \u00abDe la Granja a la Taula\u00bb afegeix la necessitat no sols de substituir les pr\u00e0ctiques problem\u00e0tiques, sin\u00f3 tamb\u00e9 de proporcionar alternatives \u00e0mpliament accessibles i rendibles en quantitats suficients<\/p><\/blockquote>\n<h4>Solucions viables i rendibles identificades<\/h4>\n<p>Les conclusions del projecte RELACS es van elaborar mitjan\u00e7ant una s\u00e8rie de tallers nacionals i europeus amb investigadors, responsables pol\u00edtics, la ind\u00fastria i associacions d&#8217;agricultors. Els tres fulls de ruta per a la reducci\u00f3 de productes fitosanitaris conflictius (coure, oli mineral), la introducci\u00f3 progressiva de noves fonts de nutrients i la reducci\u00f3 d&#8217;inputs conflictius utilitzats en la producci\u00f3 ramadera (antibi\u00f2tics, antihelm\u00edntics, vitamines) resultants estan disponibles en la <a href=\"https:\/\/relacs-project.eu\/resources\/policy-documents\/\" target=\"_blank\" rel=\"noopener\">p\u00e0gina web<\/a> de RELACS.<\/p>\n<p>Els objectius de l&#8217;estrat\u00e8gia europea \u00abDe la Granja a la Taula\u00bb afegeixen la necessitat no sols de substituir les pr\u00e0ctiques problem\u00e0tiques, sin\u00f3 tamb\u00e9 de <strong>proporcionar alternatives \u00e0mpliament accessibles i rendibles en quantitats suficients<\/strong>. Si b\u00e9 les eines i tecnologies explorades en RELACS van complir en gran manera les expectatives quant a efic\u00e0cia, tamb\u00e9 s&#8217;han trobat importants reptes quant a la durada fins que les alternatives puguin ser utilitzades legalment pels agricultors (\u00e9s a dir, l&#8217;autoritzaci\u00f3 dels inputs). A m\u00e9s, moltes alternatives seran m\u00e9s cares que les opcions est\u00e0ndard, per la qual cosa ser\u00e0 necessari el suport de les pol\u00edtiques, aix\u00ed com la instrucci\u00f3 i la formaci\u00f3 perqu\u00e8 siguin adoptades pels agricultors.<\/p>\n<p>RELACS va proporcionar la informaci\u00f3 cient\u00edfica necess\u00e0ria per a identificar solucions viables i rendibles i el cam\u00ed a seguir per a la seva aplicaci\u00f3, per\u00f2 tamb\u00e9 va identificar colls d&#8217;ampolla en diversos nivells al llarg de la cadena de valor. Tamb\u00e9 ha quedat clar que<strong> les pol\u00edtiques pertinents de la UE hauran de fer-se a mesura per a abordar els diferents problemes<\/strong>, en funci\u00f3 de l&#8217;aportaci\u00f3 espec\u00edfica. Es van elaborar fulls de ruta per a establir normes justes, fiables i aplicables als inputs conflictius abordats en el projecte. Com s&#8217;esperava, l&#8217;eliminaci\u00f3 immediata dels inputs conflictius crearia riscos i costos insuportables per al sector ecol\u00f2gic. Per contra, un full de ruta intel\u00b7ligent amb fases de transici\u00f3 escalonades pot conduir a un canvi r\u00e0pid i reeixit de la pr\u00e0ctica agr\u00edcola. \u00c9s\/era essencial involucrar a totes les parts interessades per a arribar a conclusions conjuntes sobre la viabilitat t\u00e8cnica de les solucions en les diverses situacions pedoclim\u00e0tiques i socioculturals d&#8217;Europa.<\/p>\n<p><strong>Font<\/strong>: <strong><a href=\"https:\/\/www.fibl.org\/en\/info-centre\/news\/relacs-four-successful-years-of-research-on-alternatives-to-contentious-inputs-in-organic-farming\" target=\"_blank\" rel=\"noopener\">RELACS \u2013 four successful years of research on alternatives to contentious inputs in organic farming, FiBL.org<\/a><\/strong><\/p>\n<p><a href=\"https:\/\/www.bioecoactual.com\/ca\/subscripcio\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Subscriu-te<\/strong><\/a><strong> a la Newsletter i rep cada mes Bio Eco Actual gratis al teu correu<\/strong><\/p>\n<p><strong><em>Bio Eco Actual<\/em>, <em>el teu mensual 100% ecol\u00f2gic<\/em><br \/>\nLlegir <\/strong><a href=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2022\/07\/BioEcoActual_Agost_2022.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Bio Eco Actual Agost 2022<\/strong><\/a><\/p>\n<p><iframe style=\"border: none; width: 100%; height: 520px;\" src=\"\/\/e.issuu.com\/embed.html?d=bioecoactual_agost_2022&amp;hideIssuuLogo=true&amp;showOtherPublicationsAsSuggestions=true&amp;u=bioecoactual\" allowfullscreen=\"allowfullscreen\"> <\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&rsquo;objectiu del projecte RELACS (Replacement of Contentious Inputs in Organic Farming Systems) era desenvolupar i validar alternatives als inputs conflictius en la producci&oacute; de cultius ecol&ograve;gics (coure, olis minerals, inputs nutritius) i en la producci&oacute; ramadera (antihelm&iacute;ntics, antibi&ograve;tics i vitamines sint&egrave;tiques) i proposar fulls de ruta per a la seva aplicaci&oacute;. Partint d&rsquo;una llista d&rsquo;alternatives [&hellip;]<\/p>\n","protected":false},"author":419,"featured_media":62145,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7173],"tags":[],"class_list":["post-62151","post","type-post","status-publish","format-standard","has-post-thumbnail","category-professional"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>RELACS: 4 anys investigant alternatives als inputs conflictius en l&#039;agricultura ecol\u00f2gica<\/title>\n<meta name=\"description\" content=\"L&#039;objectiu del projecte RELACS era desenvolupar i validar alternatives als inputs conflictius en la producci\u00f3 ecol\u00f2gica i ramadera\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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