{"id":23678,"date":"2025-04-04T13:47:58","date_gmt":"2025-04-04T13:47:58","guid":{"rendered":"https:\/\/agaca.coop\/?p=23678"},"modified":"2025-04-14T13:13:21","modified_gmt":"2025-04-14T13:13:21","slug":"estercos-e-xurros-en-galicia","status":"publish","type":"post","link":"https:\/\/agaca.coop\/gl\/estercos-e-xurros-en-galicia\/","title":{"rendered":"Estercos e xurros en Galicia"},"content":{"rendered":"

A xesti\u00f3n e uso eficiente de estercos e xurros como fertilizantes org\u00e1nicos nos cultivos \u00e9 o mellor exemplo de econom\u00eda circular que leva s\u00e9culos produc\u00edndose en Galicia. Por iso, Galicia disp\u00f3n da maior porcentaxe de terras coa maior composici\u00f3n org\u00e1nica de Espa\u00f1a. Podemos sentirnos orgullosos da nosa contribuci\u00f3n ao medio ambiente, \u00e1 fixaci\u00f3n do carbono na terra: somos l\u00edderes destacados en Espa\u00f1a. Os xurros da gander\u00eda non son os t\u00edpicos residuos industriais e urbanos dos que debemos desprend\u00e9rmonos, inc\u00f3modos, dif\u00edciles de xestionar, cargados de metais pesados… Os xurros, a veces molestos polo cheiro, son un subproduto da gander\u00eda cunha importante utilidade agron\u00f3mica como fertilizante. Os estercos e xurros, con diferente composici\u00f3n fertilizante segundo a especie da que procedan, conte\u00f1en nutrientes esenciais para as plantas coma o nitr\u00f3xeno, o f\u00f3sforo e o potasio, as\u00ed como nutrientes secundarios coma o ferro, o manganeso e outros.<\/p>\n

O uso de fertilizantes inorg\u00e1nicos, moitos deles elaborados a partir do petr\u00f3leo e\/ou gas natural, sup\u00f3n un custo moi elevado para a econom\u00eda e para o medio ambiente, con alto custo na emisi\u00f3n de gases efecto invernadoiro. Por exemplo, os especialistas afirman que o uso de urea sint\u00e9tica desprotexida como fertilizante na agricultura dispara o c\u00e1lculo das emisi\u00f3ns de CO2 a niveis moi elevados, insostibles.<\/p>\n

Un uso axeitado de estercos e xurros axuda a reconstru\u00edr terreos agr\u00edcolas, mitigando a desertizaci\u00f3n \u00e1 vez que favorece o emprego de menos fertilizantes qu\u00edmicos, con moito maior custo e perigosa problem\u00e1tica ambiental. A fertilizaci\u00f3n \u00e9 un dos custos m\u00e1is importantes en produci\u00f3ns coma o millo forraxeiro ou pradar\u00edas, pois necesitamos nutrir a terra para lograr os cultivos. Dende o punto de vista econ\u00f3mico, o bo uso dos xurros como fertilizante org\u00e1nico aforra moitos mill\u00f3ns de euros en Galicia.
\n\u00c9 certo que se debe seguir mellorando a aplicaci\u00f3n racional dos olfactivamente molestos xurros nas terras agrarias, claves para optimizar os beneficios das granxas. Debemos ter axeitadas fosas de xurros con dimensi\u00f3ns suficientes. \u00c9 moi importante que as aplicaci\u00f3ns de xurro se fagan coas condici\u00f3ns clim\u00e1ticas id\u00f3neas; que se cumpran as normas racionais que limitan os excesos de xurro coa finalidade de evitar a contaminaci\u00f3n difusa producida polos nitratos nas augas. Sempre que se poida, deber\u00edan poder usarse na aplicaci\u00f3n sistemas que permitan localizar o xurro, para contribu\u00edr tam\u00e9n \u00e1 reduci\u00f3n das emisi\u00f3ns de amon\u00edaco \u00e1 atmosfera.<\/p>\n

Segundo a FAO, o 50% dos fertilizantes que se usan no mundo son de orixe animal, en forma de deposici\u00f3ns que quedan nos pasteiros ou en forma de estercos e xurros aplicados nas terras de cultivo. Os estercos e xurros axeitadamente aplicados son esenciais para reducir o uso de fertilizantes qu\u00edmicos de s\u00edntese coa finalidade de acadar produci\u00f3ns sostibles.<\/p>\n

Pese a quen lle pese, en Galicia nin a carga gandeira nin a produci\u00f3n de nitr\u00f3xeno procedente dos xurros e estercos superan os l\u00edmites contaminantes que establecen as normativas, pero urxen apoios aos investimentos para mellorar e optimizar o seu uso, clave para manter un sector agrario e gandeiro vivo e competitivo e frear o abandono. Todos sabemos que o problema do nitr\u00f3xeno nas augas procede, en xeral, da falta de depuraci\u00f3n das augas residuais das vivendas e industria. Agardemos que as autoridades sexan consecuentes.<\/p>\n

Leer revista completa:
\n\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Podemos sentirnos orgullosos da nosa contribuci\u00f3n ao medio ambiente, \u00e1 fixaci\u00f3n do carbono na terra: somos l\u00edderes destacados en Espa\u00f1a.<\/p>\n","protected":false},"author":2,"featured_media":12126,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[267],"tags":[],"class_list":["post-23678","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-gl"],"yoast_head":"\nEstercos e xurros en Galicia - AGACA<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/agaca.coop\/gl\/estercos-e-xurros-en-galicia\/\" \/>\n<meta property=\"og:locale\" content=\"gl_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Estercos e xurros en Galicia - 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