{"id":6010,"date":"2025-03-07T12:06:51","date_gmt":"2025-03-07T11:06:51","guid":{"rendered":"https:\/\/www.irriga.es\/?p=6010"},"modified":"2025-03-07T12:09:44","modified_gmt":"2025-03-07T11:09:44","slug":"sistemes-antigelada-en-fruiters-3","status":"publish","type":"post","link":"https:\/\/irriga.es\/index.php\/2025\/03\/07\/sistemes-antigelada-en-fruiters-3\/","title":{"rendered":"Sistemes antigelada en fruiters"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.4.8&#8243; custom_padding=&#8221;||0px|||&#8221;][et_pb_row _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h1><span style=\"color: #ffffff; font-size: small;\">SISTEMES ANTIGELADA EN FRUITERS, LLEIDA<\/span><\/h1>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h1 style=\"text-align: center;\"><span>Les gelades s\u00f3n un problema<\/span><span> molt s<\/span><span>eri\u00f3s per les explotacions agr\u00edcoles, pels danys que provoquen als cultius.\u00a0<\/span><\/h1>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_row _builder_version=&#8221;4.4.8&#8243; custom_padding=&#8221;0px|||||&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_image src=&#8221;https:\/\/irriga.es\/wp-content\/uploads\/2022\/07\/1200_1649167686gelades.jpg&#8221; title_text=&#8221;1200_1649167686gelades&#8221; _builder_version=&#8221;4.4.8&#8243;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<div class=\"amp_fotografia_peu\">\n<div class=\"amp_peu_fotografia\"><span style=\"font-size: small;\"><em>Imatge dels fruits gelats a causa del fred extrem | Jordi Navarra<\/em><\/span><\/div>\n<div class=\"amp_peu_fotografia\"><span style=\"font-size: small;\"><em>source: Pallars Digital<\/em><\/span><\/div>\n<\/div>\n<div class=\"row\">\n<div class=\"col-md-9\"><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h2 style=\"text-align: center;\"><span style=\"color: #93d400;\">Per poder controlar i minimitzar els danys de les gelades, fer un estudi previ de totes les possibles accions a posar en pr\u00e0ctica \u00e9s vital.<\/span><\/h2>\n<p><span style=\"font-size: x-large;\">Tipus de gelades:<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_accordion _builder_version=&#8221;4.4.8&#8243;][et_pb_accordion_item title=&#8221;Gelades negres&#8221; open=&#8221;on&#8221; _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<p><span>Parlem de gelades negres quan les temperatures del punt de rosada \u00e9s menor al punt de congelaci\u00f3 i a m\u00e9s, hi ha poca humitat a l&#8217;aire.<\/span><\/p>\n<p><span>Aquesta manca d\u2019humitat fa que el gebre no es formi sobre les fulles per\u00f2, la congelaci\u00f3 de la mateixa aigua de les plantes i el fred intens fa que es tornin negres o les mata totalment \/ directament.<\/span><\/p>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;Gelades d&#8217;advecci\u00f3&#8221; _builder_version=&#8221;4.4.8&#8243; open=&#8221;off&#8221;]<\/p>\n<p><span>Apareixen quan una massa d&#8217;aire polar fa baixar les temperatures a menys de 0\u00b0C, que en conseq\u00fc\u00e8ncia provoca la congelaci\u00f3 de tot al seu pas. Freq\u00fcentment arriben amb vents forts.<span class=\"Apple-converted-space\">\u00a0<\/span><\/span><\/p>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;Gelades blanques&#8221; _builder_version=&#8221;4.4.8&#8243; open=&#8221;off&#8221;]<\/p>\n<p><span>Arriben quan les<span class=\"Apple-converted-space\">\u00a0 <\/span>temperatures s\u00f3n molt baixes amb un \u00edndex d\u2019humitat molt alt. El gebre es forma a les superf\u00edcies de les plantacions agr\u00edcoles deixant-les amb un aspecte blanquin\u00f3s caracter\u00edstic, d\u2019aqu\u00ed el seu nom.<\/span><\/p>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;Gelades de radiaci\u00f3&#8221; _builder_version=&#8221;4.4.8&#8243; open=&#8221;off&#8221;]<\/p>\n<p><span>A la nit, quan es produeix la inversi\u00f3 t\u00e8rmica.<span class=\"Apple-converted-space\">\u00a0<\/span><\/span><\/p>\n<p><span>El terra es refreda i traspassa la seva calor a l\u2019atmosfera.<span class=\"Apple-converted-space\">\u00a0<\/span><\/span><\/p>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;GELADES D&#8217;EVAPORACI\u00d3&#8221; _builder_version=&#8221;4.4.8&#8243; open=&#8221;off&#8221;]<\/p>\n<p><span>Quan la temperatura de les plantes baixa de manera notable per l&#8217;evaporaci\u00f3 de l&#8217;aigua que les recobreix. T\u00e9 variacions segons l&#8217;\u00e8poca en qu\u00e8 es produeixen.<\/span><\/p>\n<p>[\/et_pb_accordion_item][\/et_pb_accordion][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h1 style=\"text-align: center;\"><span style=\"color: #53c8e7;\">COM CONTROLAR LES GELADES?<\/span><\/h1>\n<h1 style=\"text-align: center;\"><span style=\"font-size: small;\"><em>sistemes antigelada en fruiters<\/em><\/span><\/h1>\n<p><span style=\"font-size: small;\"><em><\/em><\/span><\/p>\n<h2><span style=\"font-size: medium; color: #93d400;\">Amb els sistemes de reg antigelada en fruiters, el que busquem en definitiva \u00e9s crear un microclima que revertir\u00e0 els factors que provoquen les gelades.<\/span><\/h2>\n<p><span><\/span><\/p>\n<h3><span style=\"font-size: medium;\">Amb l&#8217;aplicaci\u00f3 d&#8217;aigua podem aconseguir:<\/span><\/h3>\n<p><span>&#8211; Aportar calories a l&#8217;atmosfera<\/span><\/p>\n<p><span>&#8211; Augmentar la humitat relativa fins a la saturaci\u00f3.<\/span><\/p>\n<p><span>&#8211; Disminuir la transmissi\u00f3 de calor, ja que l&#8217;aire sec i transparent irradia m\u00e9s que el saturat d&#8217;humitat.<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_image src=&#8221;https:\/\/irriga.es\/wp-content\/uploads\/2022\/07\/real-pique.jpg&#8221; alt=&#8221;sistemes antigelada en fruiters, antigelada, gelades, antihielo, fruiters, antigelada en fruiters&#8221; title_text=&#8221;real-pique&#8221; _builder_version=&#8221;4.4.8&#8243;][\/et_pb_image][et_pb_image src=&#8221;https:\/\/irriga.es\/wp-content\/uploads\/2022\/07\/nadal.jpg&#8221; title_text=&#8221;nadal&#8221; _builder_version=&#8221;4.4.8&#8243;][\/et_pb_image][et_pb_image src=&#8221;https:\/\/irriga.es\/wp-content\/uploads\/2022\/07\/biosca.jpg&#8221; title_text=&#8221;biosca&#8221; _builder_version=&#8221;4.4.8&#8243;][\/et_pb_image][et_pb_image src=&#8221;https:\/\/irriga.es\/wp-content\/uploads\/2022\/07\/P1010103-scaled.jpg&#8221; alt=&#8221;sistemes antigelada, antigelada, fruiters, frutales, antihielo&#8221; title_text=&#8221;OLYMPUS DIGITAL CAMERA&#8221; _builder_version=&#8221;4.4.8&#8243;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h1><span>T\u00c8CNIQUES D&#8217;APLICACI\u00d3 DE L&#8217;AIGUA<\/span><\/h1>\n<p>[\/et_pb_text][et_pb_accordion _builder_version=&#8221;4.4.8&#8243;][et_pb_accordion_item title=&#8221;1. PER ASPERSORS&#8221; open=&#8221;on&#8221; open_toggle_text_color=&#8221;#93d400&#8243; title_tablet=&#8221;&#8221; title_phone=&#8221;&#8221; title_last_edited=&#8221;on|desktop&#8221; _builder_version=&#8221;4.4.8&#8243; toggle_text_color=&#8221;#53c8e7&#8243;]<\/p>\n<p><span>Els aspersors se solen<span class=\"Apple-converted-space\">\u00a0 <\/span>instal\u00b7lar amb un marc aprox. 18&#215;18 amb una pluviometria de 3.5l\/h\/m2 a 5l\/h\/m2. Per aconseguir el nostre objectiu \u00e9s necessari que la velocitat de gir de cada aspersor sigui la m\u00e9s alta possible (menys de 30s per fer una volta). \u00c9s un sistema robust, amb f\u00e0cil maneig, una resposta r\u00e0pida i de molt alta efectivitat.<\/span><\/p>\n<p><span>Inconvenients: requereix molta dotaci\u00f3 de l&#8217;aigua.<\/span><\/p>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;2. PER MICROASPERSORS&#8221; open_toggle_text_color=&#8221;#93d400&#8243; _builder_version=&#8221;4.4.8&#8243; toggle_text_color=&#8221;#53c8e7&#8243; open=&#8221;off&#8221;]<\/p>\n<p><span>S&#8217;instal\u00b7len a cada filera d&#8217;arbres, amb 2.5-6m de dist\u00e0ncia entre cada un. L&#8217;aigua es pot aplicar a tota la superf\u00edcie o b\u00e9, nom\u00e9s a l&#8217;\u00e0rea vegetal del cultiu.<\/span><\/p>\n<p><span>Amb aquest sistema busquem un estalvi <\/span><span>d&#8217;<\/span><span>aigua (comparant amb el tipus anterior). La pluviometria pot ser entre 1.5 i 3.5 l\/h\/m2.<\/span><\/p>\n<p>[\/et_pb_accordion_item][\/et_pb_accordion][et_pb_accordion _builder_version=&#8221;4.4.8&#8243;][et_pb_accordion_item title=&#8221;3. PER MICROASPERSORS AMB POLSADORS&#8221; open=&#8221;on&#8221; open_toggle_text_color=&#8221;#93d400&#8243; _builder_version=&#8221;4.4.8&#8243; toggle_text_color=&#8221;#53c8e7&#8243;]<\/p>\n<p><span>La base \u00e9s el sistema de microaspersi\u00f3, per\u00f2 amb un afegit &#8211; incorpora un polsador. El seu objectiu \u00e9s aconseguir m\u00e9s estalv<\/span><span>i <\/span><span>d\u2019&#8217;aigua. La presa de l&#8217;aigua la fem amb un emissor autocompensant (pot ser de 15 a 60 litres que t\u00e9 la funci\u00f3 de cabal\u00edmetre). Quan el polsador (una mena de calder\u00ed min\u00fascul) s&#8217;omple, s&#8217;obre la v\u00e0lvula antidrenant per la pujada de la pressi\u00f3, que en conseq\u00fc\u00e8ncia provoca tirada de l&#8217;aigua. La intermit\u00e8ncia de la seva expulsi\u00f3 (cicles de polsos) \u00e9s m\u00e9s r\u00e0pida que en els aspersors assegurant-se una pluviometria gaireb\u00e9 constan<\/span><span>t, <\/span><span>que en <\/span><span>alguns casos, <\/span><span>sembla cont\u00ednua.<\/span><\/p>\n<p><span>El sistema pot ser de cobertura total o parcial. No obstant el cost m\u00e9s elevat, \u00e9s preferible parcial que aporta major efici\u00e8ncia.<\/span><\/p>\n<p><span>MOLT IMPORTANT: s\u2019ha d\u2019augmentar la pluviometria a les primeres fileres d\u2019arbres, on sabem que entra el vent.<\/span><\/p>\n<p>[\/et_pb_accordion_item][\/et_pb_accordion][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h1 style=\"text-align: center;\"><span><b>RECOMANACIONS DE MANEIG<\/b><\/span><\/h1>\n<h1 style=\"text-align: center;\"><span style=\"font-size: medium;\"><em><b>sistemes antigelada en fruiters<\/b><\/em><\/span><\/h1>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h4><span style=\"color: #93d400;\">1. \u00c9s molt important prendre com a punt de refer\u00e8ncia la temperatura humida<\/span><\/h4>\n<p><span><\/span><\/p>\n<p><span>Es mesura amb un term\u00f2me<\/span><span>tre <\/span><span>que t\u00e9 el dip\u00f2sit embolicat en una tela humida. La seva funci\u00f3 \u00e9s molt f\u00e0cil: l&#8217;aigua que mulla la tela s&#8217;evapora per aix\u00f2 adquireix la calor de l&#8217;aire que l&#8217;envolta, com a conseq\u00fc\u00e8ncia,<span class=\"Apple-converted-space\">\u00a0 <\/span>la temperatura comen\u00e7a a disminuir. La temperatura seca i humida ser\u00e0 la mateixa quan l&#8217;aire estigui saturat de v<\/span><span>apor per\u00f2,<\/span><span> com m\u00e9s petita sigui la humitat relativa de l&#8217;aire, menor ser\u00e0 la temperatura humida.<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_image src=&#8221;https:\/\/irriga.es\/wp-content\/uploads\/2022\/07\/bulb.jpg&#8221; alt=&#8221;sistemes antigelada en fruiters, antigelada, gelades, antihielo, fruiters, antigelada en fruiters&#8221; title_text=&#8221;bulb&#8221; _builder_version=&#8221;4.4.8&#8243;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h4><span style=\"color: #93d400;\">2. \u00c9s recomanable posar en marxa<\/span><\/h4>\n<ul>\n<li><span><\/span><span>els sistemes amb baixa pluviometria: a 3\u00b0C de temperatura humida,<\/span><\/li>\n<li><span><\/span><span>els de pluviometria mitjana (superior a 2l\/m2): a 1.5\u00b0C de temperatura humida.<\/span><\/li>\n<li><span><\/span><span>els sistemes per aspersi\u00f3: a 0.5\u00b0C de temperatura humida.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h4><span style=\"color: #93d400;\">3. Si es prev\u00e9 gelades intenses: <\/span><\/h4>\n<p><span>es pot augmentar la protecci\u00f3 antigelada posant els sistemes de baixa dosi d&#8217;aigua en marxa en el moment que el sol deixa de radiar la finca. <\/span><span>\u00c9s el moment en que el terra comen\u00e7a a desprendre calor cap a l\u2019atmosfera i la temperatura disminueix.<\/span><\/p>\n<p><span><\/span><\/p>\n<h4><span style=\"color: #93d400;\">4. En determinats cultius on la instal\u00b7laci\u00f3 per damunt de la superf\u00edcie \u00e9s dif\u00edcil, es pot optar per fer-la sota l&#8217;arbre amb una protecci\u00f3 menor.<\/span><\/h4>\n<p><span><\/span><\/p>\n<h4><span style=\"color: #93d400;\">5. Quan parar el sistema?<\/span><\/h4>\n<p><span>Quan la temperatura humida \u00e9s superior a 0\u00b0C i el agua de les branques s\u2019ha descongelat.<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h1 style=\"text-align: center;\"><span>Voleu saber-ne m\u00e9s?<\/span><\/h1>\n<h3 style=\"text-align: center;\"><span style=\"color: #53c8e7;\">Poseu-vos en contacte amb els nostres enginyers. <\/span><\/h3>\n<h4 style=\"text-align: center;\"><span style=\"color: #93d400;\">Us podran aclarir qualsevol dubte que tingueu.<\/span><\/h4>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.4.8&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h1 style=\"text-align: center;\">coneix les opinions dels nostres clients!<\/h1>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.4.8&#8243; locked=&#8221;off&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_accordion admin_label=&#8221;Accordion&#8221; _builder_version=&#8221;4.4.8&#8243;][et_pb_accordion_item title=&#8221;Ramon Nadal I la seva lluita contra gelades 2022&#8243; open=&#8221;on&#8221; _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/KEv0iTNGzXA\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"><\/iframe><\/p>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;Gelades 2022: F. Huguet &#038; R. Vidal expliquen la seva batalla. Han pogut salvar el cultiu amb el Pulsar?&#8221; _builder_version=&#8221;4.4.8&#8243; open=&#8221;off&#8221;]<\/p>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/3uJ8Aw_BsxA\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"><\/iframe><\/p>\n<p>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;Jordi Biosca: els punts forts i d\u00e8bils del sistema PULSAR? &#8221; _builder_version=&#8221;4.4.8&#8243; open=&#8221;off&#8221;]<\/p>\n<blockquote class=\"instagram-media\" data-instgrm-permalink=\"https:\/\/www.instagram.com\/tv\/Ccpo8SJgMn8\/?utm_source=ig_embed&amp;utm_campaign=loading\" data-instgrm-version=\"14\" style=\"background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; 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[&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4244,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6010","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-corporatiu"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Sistemes antigelada en fruiters - Irriga Water Solutions - Lleida<\/title>\n<meta name=\"description\" content=\"Els sistemes d&#039;antigelada en fruiters fan crear un microclima que revertir\u00e0 els factors que provoquen gelades....antigelada fruiters Lleida\" \/>\n<meta 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