{"id":4312,"date":"2025-12-10T08:31:55","date_gmt":"2025-12-10T08:31:55","guid":{"rendered":"https:\/\/paul-tech.com\/?p=4312"},"modified":"2026-03-12T15:39:09","modified_gmt":"2026-03-12T15:39:09","slug":"paljon-olkea-vahan-jyvia-miksi-nain-tapahtuu-ja-mita-siita-voi-oppia","status":"publish","type":"post","link":"https:\/\/paul-tech.com\/fi\/paljon-olkea-vahan-jyvia-miksi-nain-tapahtuu-ja-mita-siita-voi-oppia\/","title":{"rendered":"Paljon olkea \u2013 v\u00e4h\u00e4n jyvi\u00e4: miksi n\u00e4in tapahtuu ja mit\u00e4 siit\u00e4 voi oppia?"},"content":{"rendered":"<div class=\"wp-block-post-date\"><time datetime=\"2025-12-10T08:31:55+00:00\">December 10, 2025<\/time><\/div>\n\n\n<ul class=\"wp-block-social-links is-layout-flex wp-block-social-links-is-layout-flex\"><li class=\"wp-social-link wp-social-link-facebook  wp-block-social-link\"><a rel=\"noopener nofollow\" target=\"_blank\" href=\"https:\/\/www.facebook.com\/PaulTechEstonia\" class=\"wp-block-social-link-anchor\"><svg 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M8.339,18.338H5.667v-8.59h2.672V18.338z M7.004,8.574c-0.857,0-1.549-0.694-1.549-1.548 c0-0.855,0.691-1.548,1.549-1.548c0.854,0,1.547,0.694,1.547,1.548C8.551,7.881,7.858,8.574,7.004,8.574z M18.339,18.338h-2.669 v-4.177c0-0.996-0.017-2.278-1.387-2.278c-1.389,0-1.601,1.086-1.601,2.206v4.249h-2.667v-8.59h2.559v1.174h0.037 c0.356-0.675,1.227-1.387,2.526-1.387c2.703,0,3.203,1.779,3.203,4.092V18.338z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">LinkedIn<\/span><\/a><\/li>\n\n<li class=\"wp-social-link wp-social-link-instagram  wp-block-social-link\"><a rel=\"noopener nofollow\" target=\"_blank\" href=\"https:\/\/www.instagram.com\/paultech_esoil\/\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M12,4.622c2.403,0,2.688,0.009,3.637,0.052c0.877,0.04,1.354,0.187,1.671,0.31c0.42,0.163,0.72,0.358,1.035,0.673 c0.315,0.315,0.51,0.615,0.673,1.035c0.123,0.317,0.27,0.794,0.31,1.671c0.043,0.949,0.052,1.234,0.052,3.637 s-0.009,2.688-0.052,3.637c-0.04,0.877-0.187,1.354-0.31,1.671c-0.163,0.42-0.358,0.72-0.673,1.035 c-0.315,0.315-0.615,0.51-1.035,0.673c-0.317,0.123-0.794,0.27-1.671,0.31c-0.949,0.043-1.233,0.052-3.637,0.052 s-2.688-0.009-3.637-0.052c-0.877-0.04-1.354-0.187-1.671-0.31c-0.42-0.163-0.72-0.358-1.035-0.673 c-0.315-0.315-0.51-0.615-0.673-1.035c-0.123-0.317-0.27-0.794-0.31-1.671C4.631,14.688,4.622,14.403,4.622,12 s0.009-2.688,0.052-3.637c0.04-0.877,0.187-1.354,0.31-1.671c0.163-0.42,0.358-0.72,0.673-1.035 c0.315-0.315,0.615-0.51,1.035-0.673c0.317-0.123,0.794-0.27,1.671-0.31C9.312,4.631,9.597,4.622,12,4.622 M12,3 C9.556,3,9.249,3.01,8.289,3.054C7.331,3.098,6.677,3.25,6.105,3.472C5.513,3.702,5.011,4.01,4.511,4.511 c-0.5,0.5-0.808,1.002-1.038,1.594C3.25,6.677,3.098,7.331,3.054,8.289C3.01,9.249,3,9.556,3,12c0,2.444,0.01,2.751,0.054,3.711 c0.044,0.958,0.196,1.612,0.418,2.185c0.23,0.592,0.538,1.094,1.038,1.594c0.5,0.5,1.002,0.808,1.594,1.038 c0.572,0.222,1.227,0.375,2.185,0.418C9.249,20.99,9.556,21,12,21s2.751-0.01,3.711-0.054c0.958-0.044,1.612-0.196,2.185-0.418 c0.592-0.23,1.094-0.538,1.594-1.038c0.5-0.5,0.808-1.002,1.038-1.594c0.222-0.572,0.375-1.227,0.418-2.185 C20.99,14.751,21,14.444,21,12s-0.01-2.751-0.054-3.711c-0.044-0.958-0.196-1.612-0.418-2.185c-0.23-0.592-0.538-1.094-1.038-1.594 c-0.5-0.5-1.002-0.808-1.594-1.038c-0.572-0.222-1.227-0.375-2.185-0.418C14.751,3.01,14.444,3,12,3L12,3z M12,7.378 c-2.552,0-4.622,2.069-4.622,4.622S9.448,16.622,12,16.622s4.622-2.069,4.622-4.622S14.552,7.378,12,7.378z M12,15 c-1.657,0-3-1.343-3-3s1.343-3,3-3s3,1.343,3,3S13.657,15,12,15z M16.804,6.116c-0.596,0-1.08,0.484-1.08,1.08 s0.484,1.08,1.08,1.08c0.596,0,1.08-0.484,1.08-1.08S17.401,6.116,16.804,6.116z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">Instagram<\/span><\/a><\/li>\n\n<li class=\"wp-social-link wp-social-link-youtube  wp-block-social-link\"><a rel=\"noopener nofollow\" target=\"_blank\" href=\"https:\/\/www.youtube.com\/@paul-tech_esoil\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M21.8,8.001c0,0-0.195-1.378-0.795-1.985c-0.76-0.797-1.613-0.801-2.004-0.847c-2.799-0.202-6.997-0.202-6.997-0.202 h-0.009c0,0-4.198,0-6.997,0.202C4.608,5.216,3.756,5.22,2.995,6.016C2.395,6.623,2.2,8.001,2.2,8.001S2,9.62,2,11.238v1.517 c0,1.618,0.2,3.237,0.2,3.237s0.195,1.378,0.795,1.985c0.761,0.797,1.76,0.771,2.205,0.855c1.6,0.153,6.8,0.201,6.8,0.201 s4.203-0.006,7.001-0.209c0.391-0.047,1.243-0.051,2.004-0.847c0.6-0.607,0.795-1.985,0.795-1.985s0.2-1.618,0.2-3.237v-1.517 C22,9.62,21.8,8.001,21.8,8.001z M9.935,14.594l-0.001-5.62l5.404,2.82L9.935,14.594z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">YouTube<\/span><\/a><\/li>\n\n<li class=\"wp-social-link wp-social-link-tiktok  wp-block-social-link\"><a rel=\"noopener nofollow\" target=\"_blank\" href=\"https:\/\/www.tiktok.com\/@paultech_soil\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewBox=\"0 0 32 32\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M16.708 0.027c1.745-0.027 3.48-0.011 5.213-0.027 0.105 2.041 0.839 4.12 2.333 5.563 1.491 1.479 3.6 2.156 5.652 2.385v5.369c-1.923-0.063-3.855-0.463-5.6-1.291-0.76-0.344-1.468-0.787-2.161-1.24-0.009 3.896 0.016 7.787-0.025 11.667-0.104 1.864-0.719 3.719-1.803 5.255-1.744 2.557-4.771 4.224-7.88 4.276-1.907 0.109-3.812-0.411-5.437-1.369-2.693-1.588-4.588-4.495-4.864-7.615-0.032-0.667-0.043-1.333-0.016-1.984 0.24-2.537 1.495-4.964 3.443-6.615 2.208-1.923 5.301-2.839 8.197-2.297 0.027 1.975-0.052 3.948-0.052 5.923-1.323-0.428-2.869-0.308-4.025 0.495-0.844 0.547-1.485 1.385-1.819 2.333-0.276 0.676-0.197 1.427-0.181 2.145 0.317 2.188 2.421 4.027 4.667 3.828 1.489-0.016 2.916-0.88 3.692-2.145 0.251-0.443 0.532-0.896 0.547-1.417 0.131-2.385 0.079-4.76 0.095-7.145 0.011-5.375-0.016-10.735 0.025-16.093z\" \/><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">TikTok<\/span><\/a><\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"556\" src=\"https:\/\/paul-tech.com\/wp-content\/uploads\/2025\/12\/IMG_6195-1024x556.jpg\" alt=\"\" class=\"wp-image-4289\" srcset=\"https:\/\/paul-tech.com\/wp-content\/uploads\/2025\/12\/IMG_6195-1024x556.jpg 1024w, https:\/\/paul-tech.com\/wp-content\/uploads\/2025\/12\/IMG_6195-300x163.jpg 300w, https:\/\/paul-tech.com\/wp-content\/uploads\/2025\/12\/IMG_6195-768x417.jpg 768w, https:\/\/paul-tech.com\/wp-content\/uploads\/2025\/12\/IMG_6195.jpg 1206w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Vuoden 2025 kasvuolosuhteet vaikuttivat merkitt\u00e4v\u00e4sti talvivehn\u00e4n jyv\u00e4sadon ja olkimassan suhteeseen. Monilla pelloilla n\u00e4htiin tilanne, jossa voimakas kasvusto ei muuttunut odotetuksi jyv\u00e4sadoksi. Suuri olkim\u00e4\u00e4r\u00e4 ja pieni jyv\u00e4sato viittaavat j\u00e4rjestelm\u00e4tason ep\u00e4tasapainoon, jota aiheuttivat liiallinen m\u00e4rkyys, heikko kaliumin saatavuus sek\u00e4 ravinnetasapainoon n\u00e4hden liian korkea typpikuormitus.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Miten liikam\u00e4rkyys vaikuttaa juuristoon?<\/strong><\/h2>\n\n\n\n<p>Kun maa pysyy pitk\u00e4\u00e4n t\u00e4ysin m\u00e4rk\u00e4n\u00e4, kasvit alkavat k\u00e4rsi\u00e4 <strong>hapenpuutteesta<\/strong>. Juurikarvat kuolevat, ravinteiden kulkeutuminen hidastuu ja yhteytt\u00e4misess\u00e4 muodostuvat sokerit eiv\u00e4t p\u00e4\u00e4se kasvin tarvitsemiin osiin.<\/p>\n\n\n\n<p>Nitraattityppi liikkuu vedess\u00e4 eritt\u00e4in helposti, joten kasvi ottaa sit\u00e4 nopeasti ja runsaasti. Tuloksena on <strong>rehev\u00e4 lehtikasvu ja suuri olkimassa<\/strong> sadonkorjuuseen menness\u00e4.<\/p>\n\n\n\n<p>Samalla <strong>kaliumin, fosforin ja magnesiumin<\/strong> otto heikkenee merkitt\u00e4v\u00e4sti \u2013 ja n\u00e4m\u00e4 ravinteet ovat keskeisi\u00e4 jyvien muodostumiselle.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Miten kaliumin puute pienent\u00e4\u00e4 talvivehn\u00e4n jyv\u00e4satoa?<\/strong><\/h2>\n\n\n\n<p>Kalium (K) vastaa sokerien kuljetuksesta t\u00e4hk\u00e4\u00e4n. Kun kaliumia on liian v\u00e4h\u00e4n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>yhteytys tuottaa v\u00e4hemm\u00e4n hiilihydraatteja<\/li>\n\n\n\n<li>sokerit eiv\u00e4t siirry tehokkaasti jyviin<\/li>\n\n\n\n<li>jyv\u00e4t j\u00e4\u00e4v\u00e4t pieniksi ja huonosti t\u00e4yttyneiksi<\/li>\n<\/ul>\n\n\n\n<p>N\u00e4in kasvusto voi olla runsas, mutta jyv\u00e4sato j\u00e4\u00e4 selv\u00e4sti odotettua pienemm\u00e4ksi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Kukinnan aikainen stressi v\u00e4hent\u00e4\u00e4 jyvien m\u00e4\u00e4r\u00e4\u00e4<\/strong><\/h2>\n\n\n\n<p>Kukinta on vehn\u00e4n herkin kasvuvaihe. Liiallinen m\u00e4rkyys ja v\u00e4h\u00e4inen auringonvalo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>heikent\u00e4v\u00e4t siitep\u00f6lyn elinvoimaa<\/li>\n\n\n\n<li>aiheuttavat p\u00f6lytysh\u00e4iri\u00f6it\u00e4<\/li>\n\n\n\n<li>v\u00e4hent\u00e4v\u00e4t jyvien m\u00e4\u00e4r\u00e4\u00e4 t\u00e4hk\u00e4\u00e4 kohti<\/li>\n<\/ul>\n\n\n\n<p>Pelto voi n\u00e4ytt\u00e4\u00e4 vahvalta ja vihre\u00e4lt\u00e4, mutta t\u00e4hkiss\u00e4 on v\u00e4hemm\u00e4n hyvin t\u00e4yttyneit\u00e4 jyvi\u00e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Minne typpi oikeastaan katosi?<\/strong><\/h2>\n\n\n\n<p><strong>Paul-Techin<\/strong> anturidatan mukaan pellolle levitetty typpi k\u00e4ytettiin kasvien toimesta l\u00e4hes t\u00e4ysin \u2013 my\u00f6s suuret m\u00e4\u00e4r\u00e4t. Silti t\u00e4m\u00e4 ei realisoitunut jyv\u00e4sadossa. Typpi kului:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>lehden ja korren kasvuun (vegetatiivinen vaihe pitkittyi)<\/li>\n\n\n\n<li>stressin kompensointiin<\/li>\n\n\n\n<li>osittain hengitykseen<\/li>\n<\/ul>\n\n\n\n<p>Kun satoa verrataan levitettyyn typpim\u00e4\u00e4r\u00e4\u00e4n, vain noin puolet p\u00e4\u00e4tyi jyviin. T\u00e4m\u00e4 osoittaa, ett\u00e4 typen <strong>agronominen hy\u00f6tysuhde<\/strong> oli matala.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Mit\u00e4 t\u00e4st\u00e4 voidaan oppia?<\/strong><\/h2>\n\n\n\n<p>Tilanne \u201cpaljon olkea \u2013 v\u00e4h\u00e4n jyvi\u00e4\u201d syntyi kolmen tekij\u00e4n yhteisvaikutuksesta:<\/p>\n\n\n\n<p><strong>1.<\/strong> Liikam\u00e4rkyys, joka heikensi juuriston toimintaa.<br><strong>2.<\/strong> Rajoittunut kaliumin saatavuus, mik\u00e4 esti jyv\u00e4n t\u00e4yttymist\u00e4.<br><strong>3.<\/strong> Ep\u00e4tasapainoinen typen ja muiden ravinteiden suhde.<\/p>\n\n\n\n<p>Jatkossa ongelmia voidaan ehk\u00e4ist\u00e4 tasapainottamalla ravinteet \u2013 erityisesti kalium. My\u00f6s pellon vesitalouden parantaminen ja toimivat kuivatusj\u00e4rjestelm\u00e4t ovat t\u00e4rkeit\u00e4. Sateisena vuonna typpikeskeisen lannoituksen haitat korostuvat. Typen m\u00e4\u00e4r\u00e4\u00e4 kannattaa s\u00e4\u00e4t\u00e4\u00e4 sek\u00e4 ravinnetasapainon ett\u00e4 s\u00e4\u00e4olosuhteiden mukaan. Ravinnem\u00e4\u00e4rien huolellinen optimointi kannattaa aina.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vuoden 2025 kasvuolosuhteet vaikuttivat merkitt\u00e4v\u00e4sti talvivehn\u00e4n jyv\u00e4sadon ja olkimassan suhteeseen. Monilla pelloilla n\u00e4htiin tilanne, jossa voimakas kasvusto ei muuttunut odotetuksi&#8230;<\/p>\n","protected":false},"author":3,"featured_media":4299,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-4312","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized-fi"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Paljon olkea \u2013 v\u00e4h\u00e4n jyvi\u00e4: miksi n\u00e4in tapahtuu ja mit\u00e4 siit\u00e4 voi oppia? - Paul-Tech<\/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:\/\/paul-tech.com\/fi\/paljon-olkea-vahan-jyvia-miksi-nain-tapahtuu-ja-mita-siita-voi-oppia\/\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Paljon olkea \u2013 v\u00e4h\u00e4n jyvi\u00e4: miksi n\u00e4in tapahtuu ja mit\u00e4 siit\u00e4 voi oppia?\" \/>\n<meta property=\"og:description\" content=\"Vuoden 2025 kasvuolosuhteet vaikuttivat merkitt\u00e4v\u00e4sti talvivehn\u00e4n jyv\u00e4sadon ja olkimassan suhteeseen. 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