{"id":3794,"date":"2022-02-21T06:23:12","date_gmt":"2022-02-21T05:23:12","guid":{"rendered":"https:\/\/geopard.tech\/?p=3794"},"modified":"2023-06-18T22:29:22","modified_gmt":"2023-06-18T20:29:22","slug":"joitakin-tarkeita-faktoja-muuttuvan-kastelunopeuden-kaytosta","status":"publish","type":"post","link":"https:\/\/geopard.tech\/fin\/blog\/some-important-facts-about-variable-rate-irrigation\/","title":{"rendered":"Joitakin t\u00e4rkeit\u00e4 faktoja muuttuvanopeuskastelusta"},"content":{"rendered":"<p>Kastelulla on olennainen rooli satojemme kasvussa, terveydess\u00e4 ja tuottavuudessa. Silti kiinnit\u00e4mme siihen usein vain v\u00e4h\u00e4n huomiota. Pid\u00e4mme ensisijaisen t\u00e4rke\u00e4n\u00e4 tuholaisten ja rikkakasvien torjuntaa, lannoitteiden k\u00e4ytt\u00f6\u00e4, <a href=\"https:\/\/geopard.tech\/fin\/sadon-seuranta\/\">sadon seuranta<\/a>, <a href=\"https:\/\/geopard.tech\/fin\/maaperan-naytteenotto\/\">maaper\u00e4n analyysi<\/a>, jne.<\/p>\n<p>Hyv\u00e4, mutta nuo muutokset ilman kastelua ovat kuin auton tankkaamista ilman moottorin k\u00e4ynnist\u00e4mist\u00e4; Se ei liiku. Sama p\u00e4tee t\u00e4h\u00e4n. Muut k\u00e4yt\u00e4nn\u00f6t ovat tehokkaita vain, jos kastelu on asianmukaista.<\/p>\n<p>Kasteltu maa tuottaa runsaan ja satoisamman sadon verrattuna kuivaan maahan. Tilastollisesti 171 3\/3 tonnia kasteltua maataloutta tuottaa 401 3\/3 tonnia maailman ruoasta. Kastelu parantaa satoja, edist\u00e4\u00e4 kannattavaa satoa ja auttaa maaper\u00e4n rakennetta, jos se tehd\u00e4\u00e4n oikein.<\/p>\n<p>Maaper\u00e4tyyppien ja kasvien vedentarpeen vaihtelun vuoksi kasvien manuaalinen kastelu voi olla ylivoimaista ja hermoja raastavaa, varsinkin jos kyseess\u00e4 on suuri maatila. T\u00e4m\u00e4n prosessin helpottamiseksi otetaan k\u00e4ytt\u00f6\u00f6n huipputeknologia nimelt\u00e4 VRI (Variable Rate Irrigation).<\/p>\n<h2>Joitakin t\u00e4rkeit\u00e4 faktoja muuttuvanopeuskastelusta<\/h2>\n<p>Se otettiin alun perin k\u00e4ytt\u00f6\u00f6n laajamittaisen maatalouden tukemiseksi 2000-luvun alussa. Nyky\u00e4\u00e4n muuttuvaa kastelua k\u00e4ytet\u00e4\u00e4n kaikenlaisilla tiloilla ennakoimattomien sadem\u00e4\u00e4rien, s\u00e4\u00e4n vaihtelun ja muiden ongelmien vuoksi. <a href=\"https:\/\/geopard.tech\/fin\/blogi\/maaperatyypit-miten-niista-saa-kaiken-irti\/\">maaper\u00e4n tyyppi<\/a> ja sato-olosuhteet sek\u00e4 tarve nopeuttaa hy\u00f6dyllisi\u00e4 hoitop\u00e4\u00e4t\u00f6ksi\u00e4 ravinteiden ja veden osalta.<\/p>\n<h2>Mik\u00e4 on muuttuva kastelunopeus?<\/h2>\n<p>Se on innovatiivinen teknologia, joka jakaa vett\u00e4 kasveille oikean m\u00e4\u00e4r\u00e4n ja oikealla aikav\u00e4lill\u00e4 tyydytt\u00e4\u00e4kseen kasvien vedentarpeen.<\/p>\n<p>Koska kasvien ja maaper\u00e4n vedentarve vaihtelee, VRI sallii Central Pivot -kasteluj\u00e4rjestelm\u00e4n k\u00e4yt\u00f6n, joka k\u00e4ytt\u00e4\u00e4 GPS- (Global Positioning System) ja GIS- (Geographic Information System) -tekniikoita m\u00e4\u00e4ritt\u00e4\u00e4kseen kullekin maa-alueelle k\u00e4ytett\u00e4v\u00e4n tarkan vesim\u00e4\u00e4r\u00e4n.<\/p>\n<p>Tasainen veden levitt\u00e4minen pellolle voi tehd\u00e4 joistakin alueista vetisi\u00e4, kun taas toiset kuivuvat. VRI:n avulla voit toimittaa vett\u00e4 tilasi jokaiselle alueelle ilman, ett\u00e4 maata kastellaan liikaa tai liian v\u00e4h\u00e4n. Vaikka sen k\u00e4ytt\u00f6 lupaa tehokasta vedenk\u00e4ytt\u00f6\u00e4, se ei v\u00e4ltt\u00e4m\u00e4tt\u00e4 tarkoita, ett\u00e4 vett\u00e4 kulutetaan v\u00e4h\u00e4n.<\/p>\n<h2>Muuttuvanopeuksisen kasteluj\u00e4rjestelm\u00e4n osat<\/h2>\n<p>VRI-j\u00e4rjestelm\u00e4ss\u00e4 on pivot-kasteluj\u00e4rjestelm\u00e4, jolla on seuraavat ominaisuudet;<br \/>\nSprinklerin ohjausventtiilit, jotka suihkuttavat vett\u00e4 ohjaussignaalin antamien ohjeiden mukaisesti.<br \/>\nMaailmanlaajuinen paikannusj\u00e4rjestelm\u00e4, joka kertoo meille j\u00e4rjestelm\u00e4n sijainnin kent\u00e4ll\u00e4.<\/p>\n<p>K\u00e4ytt\u00f6liittym\u00e4, joka viimeistelee kentt\u00e4kartoituksen ja m\u00e4\u00e4ritt\u00e4\u00e4 j\u00e4rjestelm\u00e4n. Ohjain, joka ohjaa kutakin sprinkleri\u00e4 tai kaikkia sprinklereit\u00e4. Sit\u00e4 voidaan my\u00f6s k\u00e4ytt\u00e4\u00e4 sprinklerin kiihtyvyyden muuttamiseen. <a href=\"https:\/\/geopard.tech\/fin\/blogi\/alykkaan-kastelun-edut\/\">kastelu<\/a>.<\/p>\n<h2>Miten muuttuva kastelum\u00e4\u00e4r\u00e4 v\u00e4hent\u00e4\u00e4 ilmastoon liittyvi\u00e4 riskej\u00e4?<\/h2>\n<p>VRI-j\u00e4rjestelm\u00e4n k\u00e4ytt\u00f6\u00f6notolla on kaksi tapaa optimoida vedenkulutus maatilallasi. Ensinn\u00e4kin se voi ohjata huomattavan m\u00e4\u00e4r\u00e4n vett\u00e4 maaper\u00e4\u00e4n, jonka vedenpid\u00e4tyskyky on alhainen, ja j\u00e4tt\u00e4\u00e4 pois alueet, joilla ei ole satoa.<\/p>\n<p>Toiseksi, veden k\u00e4yt\u00f6n v\u00e4hent\u00e4minen reuna-alueilla, jotka vaativat v\u00e4h\u00e4n kastelua tai joilla on korkea vedenpid\u00e4tyskyky, kuten savimaassa. Sadler et al. 2005:n raportin mukaan se on s\u00e4\u00e4st\u00e4nyt 8\u2013201 TP3T vedenkulutuksessa enemm\u00e4n kuin tasainen kastelu.<\/p>\n<p>VRI-j\u00e4rjestelm\u00e4n avulla keinokastelun kohteena olevat kasvit ovat v\u00e4hemm\u00e4n alttiita ilmastoon liittyville riskeille, koska ne kastuvat hyvin. N\u00e4m\u00e4 riskit johtuvat asianmukaisesta vedenhallinnasta, mik\u00e4 tekee kasveista v\u00e4hemm\u00e4n vaarallisia kuivuudelle.<\/p>\n<h2>VRI:n hy\u00f6dyt maataloudelle ja tuotannolle<\/h2>\n<p>Koska sen vedenkulutus on pienempi kuin tasakastelussa, se s\u00e4\u00e4st\u00e4\u00e4 kustannuksia v\u00e4hent\u00e4m\u00e4ll\u00e4 vedenk\u00e4ytt\u00f6\u00f6n ja pumppaamiseen k\u00e4ytetty\u00e4 m\u00e4\u00e4r\u00e4\u00e4.<\/p>\n<p>Se auttaa parantamaan satoa ja tuottavuutta, koska kastellut viljelykasvit ovat vastustamattomia tuholaisia, tauteja ja muita viljelyyn liittyvi\u00e4 ongelmia vastaan.<\/p>\n<p>Se minimoi ravinteiden huuhtoutumisen maaper\u00e4ss\u00e4 ja parantaa maaper\u00e4n terveytt\u00e4. Koska se hillitsee huuhtoutumista, maaper\u00e4n suolapitoisuus ja salaojitus paranevat.<\/p>\n<h2>Mit\u00e4 esteit\u00e4 toteutukselle on?<\/h2>\n<p>Riitt\u00e4m\u00e4t\u00f6n tiet\u00e4mys j\u00e4rjestelm\u00e4st\u00e4 ja sen k\u00e4yt\u00f6n opetteluun k\u00e4ytetty pitk\u00e4 aika.<\/p>\n<p>Yll\u00e4pitokustannukset \u2013 ty\u00f6voiman k\u00e4ytt\u00f6 vianm\u00e4\u00e4rityksess\u00e4 ja korjauksessa. J\u00e4rjestelm\u00e4n toiminnan edellytt\u00e4m\u00e4t lis\u00e4kustannukset liittyv\u00e4t muihin peltolaitteisiin, kuten peltoanturien hankintaan ja tiedonk\u00e4sittelymaksuihin. Joskus viljelij\u00f6ill\u00e4 voi olla vaikeuksia sopeutua j\u00e4rjestelm\u00e4n parannuksiin.<\/p>\n<h2>Miten se toimii?<\/h2>\n<p>Vaikka ruoantuotannon kysynt\u00e4 on kasvanut huomattavasti vuosien varrella, asianmukaisen kastelun tarve maataloudessa on suurempi kuin ihminen pystyy k\u00e4sitt\u00e4m\u00e4\u00e4n. Paremman vedenhallintaj\u00e4rjestelm\u00e4n tarve on johtanut muuttuvan kastelum\u00e4\u00e4r\u00e4n (VRI) k\u00e4ytt\u00f6\u00f6nottoon.<\/p>\n<p>Se on auttanut nykyaikaista maataloutta monin tavoin. Se on automatisoitu tekniikka, joka k\u00e4ytt\u00e4\u00e4 keskitetty\u00e4 kasteluj\u00e4rjestelm\u00e4\u00e4 veden toimittamiseen kasveille vaaditulla m\u00e4\u00e4r\u00e4ll\u00e4. On suositeltavaa, ett\u00e4 VRI-osaa ohjataan v\u00e4hint\u00e4\u00e4n nelj\u00e4ll\u00e4 vy\u00f6hykkeell\u00e4.<\/p>\n<p><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" data-attachment-id=\"3797\" data-permalink=\"https:\/\/geopard.tech\/fin\/blog\/some-important-facts-about-variable-rate-irrigation\/13-2-min\/\" data-orig-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2022\/02\/13.2-min.jpg?fit=1200%2C650&amp;ssl=1\" data-orig-size=\"1200,650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"The Importance of Variable Rate Irrigation\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2022\/02\/13.2-min.jpg?fit=1024%2C555&amp;ssl=1\" class=\"alignnone wp-image-3797 size-large\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2022\/02\/13.2-min.jpg?resize=810%2C439&#038;ssl=1\" alt=\"Joitakin t\u00e4rkeit\u00e4 faktoja muuttuvanopeuskastelusta\" width=\"810\" height=\"439\" srcset=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2022\/02\/13.2-min.jpg?resize=1024%2C555&amp;ssl=1 1024w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2022\/02\/13.2-min.jpg?resize=300%2C163&amp;ssl=1 300w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2022\/02\/13.2-min.jpg?resize=768%2C416&amp;ssl=1 768w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2022\/02\/13.2-min.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"(max-width: 810px) 100vw, 810px\" \/><\/p>\n<p>Vy\u00f6hykkeet luodaan automaattisesti ja manuaalisesti 30 vuoden maaper\u00e4n historiakuvien (agrokemiallinen analyysi, skanneritiedot, EC, kosteus) ja topografiatietojen avulla.<\/p>\n<p>GeoPard auttaa sinua jakamaan maatalouden panokset, kuten lannoitteet, kasvinsuojelun, kylv\u00f6t, kastelun jne., oikein paremman sadon saavuttamiseksi.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kastelulla on olennainen rooli satomme kasvussa, terveydess\u00e4 ja tuottavuudessa. Silti kiinnit\u00e4mme siihen usein vain v\u00e4h\u00e4n huomiota. Pid\u00e4mme ensisijaisena\u2026<\/p>","protected":false},"author":210157960,"featured_media":4819,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_eb_attr":"","content-type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[1659,1380],"tags":[1635],"class_list":["post-3794","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-irrigation-systems","category-whats","tag-irrigation-systems"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - 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