{"id":130067,"date":"2026-10-23T12:58:04","date_gmt":"2026-10-23T10:58:04","guid":{"rendered":"https:\/\/www.bioecoactual.com\/?p=130067"},"modified":"2026-10-23T12:58:04","modified_gmt":"2026-10-23T10:58:04","slug":"llavors-material-reproduccio-agricultura-ecologica","status":"publish","type":"post","link":"https:\/\/www.bioecoactual.com\/ca\/2026\/10\/23\/llavors-material-reproduccio-agricultura-ecologica\/","title":{"rendered":"Llavors i material de reproducci\u00f3 per a l\u2019agricultura ecol\u00f2gica"},"content":{"rendered":"<p style=\"margin: 0 0 18px 0;\">Quan pensem en els cultius ecol\u00f2gics, pensem en camps on no s\u2019utilitzen pesticides ni adobs qu\u00edmics, amb s\u00f2ls vius i aliments respectuosos amb el medi. Per\u00f2 hi ha una pregunta pr\u00e8via que sovint passa desapercebuda: d\u2019on surten les llavors que fan possible aquest sistema? La llavor \u00e9s el punt de partida i, en ecol\u00f2gic, ha de ser coherent amb la resta del proc\u00e9s fins a la taula.<\/p>\n<p><!--more--><\/p>\n<figure id=\"attachment_125962\" aria-describedby=\"caption-attachment-125962\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-125962 size-full\" style=\"width: 100%; height: auto; display: block; border-radius: 28px; box-shadow: 0 18px 42px rgba(0,0,0,0.12); overflow: hidden;\" src=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2026\/10\/PAG.8_SECCIO_AGRICULTURA.jpg\" alt=\"\" width=\"1000\" height=\"563\" \/><figcaption id=\"caption-attachment-125962\" class=\"wp-caption-text\">123RF Limited\u00a9 vitaliyukr<\/figcaption><\/figure>\n<p style=\"margin: 0 0 18px 0;\">La normativa general sobre llavors, varietats i material de reproducci\u00f3 \u00e9s molt estricta. A Europa (i a Espanya), les varietats comercials han d\u2019estar inscrites en cat\u00e0legs oficials i complir criteris de distinci\u00f3, homogene\u00eftat i estabilitat. I, sobretot, la llei estableix que, en la majoria de cultius comercials, cal utilitzar llavor certificada, produ\u00efda i controlada segons procediments oficials.<\/p>\n<p style=\"margin: 0 0 18px 0;\">Aix\u00f2 restringeix molt la possibilitat d\u2019utilitzar i reutilitzar llavor pr\u00f2pia. A la pr\u00e0ctica, per\u00f2, molts petits pagesos \u2014especialment en cultius de cereals de sec\u00e0 i d\u2019horta tradicional, destinats a consum propi o venda en circuits curts\u2014 continuen guardant llavor, com s\u2019ha fet tota la vida. \u00c9s una pr\u00e0ctica arrelada, tot i que sovint queda en una zona grisa entre la tradici\u00f3 i la normativa.<\/p>\n<div style=\"background: #fff8e6; border-radius: 24px; padding: 28px; margin: 34px 0; box-shadow: 0 14px 34px rgba(0,0,0,0.07);\">\n<p style=\"font-family: Georgia, 'Times New Roman', serif; font-size: 27px; line-height: 1.35; margin: 0; color: #111111; font-weight: bold;\">La llavor \u00e9s el punt de partida i, en ecol\u00f2gic, ha de ser coherent amb la resta del proc\u00e9s fins a la taula.<\/p>\n<\/div>\n<p style=\"margin: 0 0 18px 0;\">En producci\u00f3 ecol\u00f2gica, aquesta flexibilitat encara \u00e9s m\u00e9s limitada, ja que el sistema est\u00e0 fortament controlat i els inspectors han de verificar l\u2019origen de totes les llavors i del material de reproducci\u00f3 vegetativa.<\/p>\n<p style=\"margin: 0 0 18px 0;\">Per la seva banda, el reglament ecol\u00f2gic estableix que, per fer agricultura ecol\u00f2gica, cal utilitzar material de reproducci\u00f3 vegetal ecol\u00f2gic. \u00c9s a dir, llavors produ\u00efdes sota normes ecol\u00f2giques durant almenys una generaci\u00f3 o, en cultius perennes, durant dues campanyes.<\/p>\n<p style=\"margin: 0 0 18px 0;\">A m\u00e9s, la norma crea dues categories noves que responen a les necessitats espec\u00edfiques del sector:<\/p>\n<div style=\"background: #fff8e6; border-radius: 24px; padding: 26px 28px; margin: 24px 0 34px 0; box-shadow: 0 14px 34px rgba(0,0,0,0.07);\">\n<ul style=\"margin: 0; padding-left: 22px; line-height: 1.7;\">\n<li style=\"margin-bottom: 12px;\"><strong>Material heterogeni ecol\u00f2gic<\/strong>, poblacions de plantes amb una gran diversitat interna.<\/li>\n<li><strong>Varietats ecol\u00f2giques adaptades<\/strong>, obtingudes mitjan\u00e7ant programes de millora pensats per funcionar en condicions ecol\u00f2giques.<\/li>\n<\/ul>\n<\/div>\n<p style=\"margin: 0 0 18px 0;\">Aquestes categories nom\u00e9s existeixen en el sistema ecol\u00f2gic i permeten treballar amb materials que no encaixen en la rigidesa del model convencional.<\/p>\n<p style=\"margin: 0 0 18px 0;\">Per entendre la relaci\u00f3 entre la norma i la pr\u00e0ctica, cal explicar breument el concepte de pol\u00b7linitzaci\u00f3 oberta: una varietat de pol\u00b7linitzaci\u00f3 oberta \u00e9s aquella que es reprodueix naturalment, sense control artificial de la fecundaci\u00f3. Les plantes es pol\u00b7linitzen entre elles \u2014amb el vent, amb insectes o per si mateixes\u2014 i la llavor que en resulta mant\u00e9 les caracter\u00edstiques de la varietat, per\u00f2 conserva una certa diversitat interna. En resum, s\u00f3n varietats que permeten guardar llavor i tornar-la a sembrar, generaci\u00f3 rere generaci\u00f3. Aquesta capacitat d\u2019evolucionar i adaptar-se \u00e9s especialment valuosa en agricultura ecol\u00f2gica.<\/p>\n<figure id=\"attachment_125962-2\" aria-describedby=\"caption-attachment-125962-2\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-125962 size-full\" style=\"width: 100%; height: auto; display: block; border-radius: 28px; box-shadow: 0 18px 42px rgba(0,0,0,0.12); overflow: hidden;\" src=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2026\/10\/PAG.9_SECCIO_AGRICULTURA.jpg\" alt=\"\" width=\"1000\" height=\"650\" \/><figcaption id=\"caption-attachment-125962-2\" class=\"wp-caption-text\">123RF Limited\u00a9otokostic. Sembra amb tractor<\/figcaption><\/figure>\n<p style=\"margin: 0 0 18px 0;\">La normativa ecol\u00f2gica no obliga a utilitzar varietats de pol\u00b7linitzaci\u00f3 oberta. Tanmateix, molts programes de millora ecol\u00f2gica les utilitzen com a punt de partida, perqu\u00e8 encaixen amb els principis del sector: diversitat, adaptaci\u00f3 local i autonomia de la pagesia. Aix\u00f2 fa que molts materials heterogenis i moltes varietats adaptades provinguin de poblacions de pol\u00b7linitzaci\u00f3 oberta, amb plantes orientades a cr\u00e9ixer sense l\u2019\u00fas d\u2019adobs ni pesticides qu\u00edmics.<\/p>\n<div style=\"margin: 34px 0 0 0;\">\n<h2 style=\"font-family: Georgia, 'Times New Roman', serif; font-size: 30px; line-height: 1.25; margin: 0 0 16px 0; color: #111111;\">Qui es dedica a crear varietats pensades per a la producci\u00f3 ecol\u00f2gica a Europa?<\/h2>\n<p style=\"margin: 0 0 18px 0;\">Dottenfelderhof, prop de Frankfurt (Alemanya), \u00e9s un dels centres pioners i m\u00e9s influents en la millora vegetal ecol\u00f2gica. Des dels anys setanta treballen en cereals, hortalisses i farratges seleccionats directament en condicions ecol\u00f2giques. Les seves varietats, moltes d\u2019elles de pol\u00b7linitzaci\u00f3 oberta, s\u2019han convertit en referents per a agricultors de tot Europa.<\/p>\n<p style=\"margin: 0 0 18px 0;\">Tamb\u00e9 destaquen Sativa Rheinau (Su\u00efssa) i Bingenheimer Saatgut (Alemanya), que combinen recerca, producci\u00f3 de llavor i participaci\u00f3 de la pagesia.<\/p>\n<p style=\"margin: 0 0 18px 0;\">A Catalunya, Les Refardes recuperen i seleccionen varietats tradicionals en condicions ecol\u00f2giques, mantenint poblacions diverses que encaixen amb l\u2019esperit del material heterogeni. Rocalba, a Girona, tamb\u00e9 desenvolupa l\u00ednies ecol\u00f2giques pr\u00f2pies i multiplica llavor adaptada al nostre clima.<\/p>\n<p style=\"margin: 0 0 18px 0;\">A escala estatal, la Red de Semillas coordina projectes de millora participativa en cereals i horta, i diversos centres d\u2019investigaci\u00f3 i universitats treballen amb poblacions de blat i ordi seleccionades en ecol\u00f2gic, algunes de les quals podrien registrar-se com a material heterogeni. Tamb\u00e9 hi ha pagesos ecol\u00f2gics que, any rere any, fan selecci\u00f3 pr\u00f2pia de varietats locals. Aquest treball silenci\u00f3s \u00e9s una de les fonts m\u00e9s importants de varietats adaptades al medi.<\/p>\n<\/div>\n<div style=\"background: #ffffff; border-top: 3px solid #e5aa14; border-bottom: 3px solid #e5aa14; padding: 24px 0; margin: 34px 0;\">\n<p style=\"font-family: Georgia, 'Times New Roman', serif; font-size: 27px; line-height: 1.35; margin: 0; color: #111111; font-weight: bold;\">Tots comparteixen una idea: la llavor ha de n\u00e9ixer en el mateix entorn on creixer\u00e0.<\/p>\n<\/div>\n<p style=\"margin: 0 0 18px 0;\">Quan l\u2019agricultor no troba <a href=\"https:\/\/www.bioecoactual.com\/ca\/2021\/05\/10\/objectiu-2035-quan-tindrem-llavors-ecologiques-per-a-lagricultura-ecologica\/\" target=\"_blank\" rel=\"noopener noreferrer\">llavor ecol\u00f2gica<\/a> d\u2019una varietat concreta, tamb\u00e9 pot utilitzar llavor no ecol\u00f2gica, sempre que no estigui tractada amb subst\u00e0ncies prohibides, no sigui transg\u00e8nica i es justifiqui documentalment la impossibilitat de trobar l\u2019alternativa ecol\u00f2gica. \u00c9s una excepci\u00f3 contemplada a la normativa que cal sol\u00b7licitar de forma pr\u00e8via a la sembra o plantaci\u00f3 del cultiu.<\/p>\n<p style=\"margin: 0 0 18px 0;\">L\u2019agricultura ecol\u00f2gica necessita llavors i plantes que responguin als seus principis. Malgrat una normativa general molt estricta, el reglament ecol\u00f2gic ha obert la porta a materials m\u00e9s diversos i adaptats a les condicions de cultiu ecol\u00f2gic. La millora vegetal \u00e9s un proc\u00e9s llarg i cost\u00f3s, realitzat per centres especialitzats, per\u00f2 la pagesia, i les seves organitzacions, amb la seva selecci\u00f3 pr\u00f2pia i el seu coneixement del territori, en s\u00f3n una pe\u00e7a clau.<\/p>\n<p style=\"margin: 0 0 18px 0;\">En un context de canvi clim\u00e0tic i incertesa ambiental, aquesta manera d\u2019entendre els cultius ecol\u00f2gics, amb varietats m\u00e9s diverses, robustes i en evoluci\u00f3, pot ser una de les claus d\u2019un sistema alimentari m\u00e9s sostenible.<\/p>\n<p style=\"margin: 34px 0 18px 0;\"><strong>Autor:<\/strong> Isidre Mart\u00ednez, Enginyer Agr\u00f2nom.<\/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><\/strong>, <em>el teu mensual 100% ecol\u00f2gic<\/em><strong><br \/>\n<\/strong><a href=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2026\/09\/BioEcoActual_Catala_Octubre_2026.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><strong> Llegir Bio Eco Actual Octubre 2026<\/strong><\/a><\/p>\n<p><iframe style=\"border: none; width: 100%; height: 520px;\" src=\"\/\/e.issuu.com\/embed.html?d=bioecoactual_catala_octubre_2026&amp;hideIssuuLogo=true&amp;showOtherPublicationsAsSuggestions=true&amp;u=bioecoactual\" allowfullscreen=\"allowfullscreen\"> <\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Quan pensem en els cultius ecol&ograve;gics, pensem en camps on no s&rsquo;utilitzen pesticides ni adobs qu&iacute;mics, amb s&ograve;ls vius i aliments respectuosos amb el medi. Per&ograve; hi ha una pregunta pr&egrave;via que sovint passa desapercebuda: d&rsquo;on surten les llavors que fan possible aquest sistema? La llavor &eacute;s el punt de partida i, en ecol&ograve;gic, ha [&hellip;]<\/p>\n","protected":false},"author":592,"featured_media":130061,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7177],"tags":[],"class_list":["post-130067","post","type-post","status-publish","format-standard","has-post-thumbnail","category-alimentacio-ecologica"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.6 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Llavors i material de reproducci\u00f3 per a l\u2019agricultura ecol\u00f2gica - Bio Eco Actual<\/title>\n<meta name=\"description\" content=\"La llavor \u00e9s el punt de partida i, en ecol\u00f2gic, ha de ser coherent amb la resta del proc\u00e9s fins a la taula.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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