{"id":6571,"date":"2026-04-22T15:37:01","date_gmt":"2026-04-22T15:37:01","guid":{"rendered":"https:\/\/paul-tech.com\/?post_type=casestudies&#038;p=6571"},"modified":"2026-04-22T15:37:55","modified_gmt":"2026-04-22T15:37:55","slug":"james-brown-naudojimo-istorija-vasariniai-mieziai-2024-25","status":"publish","type":"casestudies","link":"https:\/\/paul-tech.com\/lt\/atvejo-tyrimai\/james-brown-naudojimo-istorija-vasariniai-mieziai-2024-25\/","title":{"rendered":"James Brown Naudojimo istorija Vasariniai mie\u017eiai 2024\/25"},"content":{"rendered":"\n<p>Azoto dirvoje buvo. Dirvai tiesiog reik\u0117jo lietaus.<\/p>\n\n\n\n<p>Kaip realaus laiko dirvo\u017eemio duomenys atskleid\u0117 vis\u0105 sauso sezono istorij\u0105 ir \u012frod\u0117, kad \u016bkininko sprendimai nuo pat prad\u017eios buvo teisingi.\u201eAzoto dirvoje buvo. Dirvai tiesiog reik\u0117jo lietaus.<\/p>\n\n\n\n<p>Pagrindiniai skai\u010diai vienu \u017evilgsniu<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Faktinis derlius<\/strong>: 5,5 t\/ha<\/li>\n\n\n\n<li><strong>\u012eprastas laukiamas derlius<\/strong>: 7,5\u20138,0 t\/ha<\/li>\n\n\n\n<li><strong>I\u0161 viso panaudota azoto<\/strong>: 126,5 kg\/ha<\/li>\n\n\n\n<li><strong>Sausros streso trukm\u0117<\/strong>: 8+ savai\u010di\u0173 kr\u016bmijimosi metu<\/li>\n\n\n\n<li><strong>Maisto med\u017eiag\u0173 lygis bir\u017eelio pabaigos \u0161uolio metu<\/strong>: 750+<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-pradine-padetis-laukas-gerose-rankose-pries-pavasari\">Pradin\u0117 pad\u0117tis: laukas gerose rankose prie\u0161 pavasar\u012f<\/h2>\n\n\n\n<p>2024 m. lapkrit\u012f James Brown \u012f po\u017eeminio purenimo b\u016bdu paruo\u0161t\u0105 kalking\u0105 priemolio lauk\u0105 pas\u0117jo tarpin\u0119 kult\u016br\u0105 naudodamas V\u00e4derstad Carrier ir Bio Drill. Per \u017eiem\u0105 Paul-Tech stotis fiksavo stabili\u0105 dirvo\u017eemio dr\u0117gm\u0119 ir maisto med\u017eiag\u0173 lygius tiek 8 cm, tiek 20 cm gylyje \u2014 tarpin\u0117 kult\u016bra i\u0161laik\u0117 dirvo\u017eemio strukt\u016br\u0105 per ramyb\u0117s laikotarp\u012f.<\/p>\n\n\n\n<p>Kov\u0105 tarpin\u0117 kult\u016bra buvo purk\u0161ta, nupjauta ir \u012fterpta \u012f dirv\u0105, o vasariniai mie\u017eiai kovo 18 d. buvo pas\u0117ti V\u00e4derstad diskine s\u0117jam\u0105ja. Paul-Tech grafikai rodo ai\u0161k\u0173 dr\u0117gm\u0117s suma\u017e\u0117jim\u0105 \u0161io dirvos dirbimo lango metu \u2014 tai normalus, bet i\u0161matuojamas priemolio dirbimo kaina sausomis s\u0105lygomis.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-azoto-programa-tinkamu-metu-del-tinkamu-priezasciu\"><strong>Azoto programa \u2014 tinkamu metu, d\u0117l tinkam\u0173 prie\u017eas\u010di\u0173<\/strong><\/h2>\n\n\n\n<p>James vis\u0105 azot\u0105 paskleid\u0117 keturiais atvejais nuo kovo 20 d. iki baland\u017eio 14 d., i\u0161 viso 126,5 kg N\/ha. Kiekvienas tr\u0119\u0161imas buvo suderintas su augalo vystymosi stadija ir atliktas prie\u0161 prognozuojam\u0105 liet\u0173 \u2014 tai \u012fprasta agronomin\u0117 praktika ir teisingas po\u017ei\u016bris molio dirvose.<\/p>\n\n\n\n<p><strong>Kovo 20 d. \u2014 77 kg N\/ha<\/strong> <br>Mineralini\u0173 tr\u0105\u0161\u0173 \u012fterpimas dygimo stadijoje (BBCH 00\u201309). Dvi dienos po s\u0117jos, suderinta su laukiamu lietumi.<br><strong>Baland\u017eio 10 d. \u2014 18 kg N\/ha + P <\/strong><br>Pirm\u0173j\u0173 trij\u0173 lapeli\u0173 stadija (BBCH 10\u201313). Prid\u0117tas fosforas. Buvo tikimasi, kad po to eis prognozuojamas lietus.<br><strong>Baland\u017eio 12 d. \u2014 31,5 kg N\/ha <br><\/strong>Pirm\u0173j\u0173 trij\u0173 lapeli\u0173 stadija. Programos t\u0119simas prie\u0161 prognozuojam\u0105 liet\u0173.<br><strong>Baland\u017eio 14 d. \u2014 tik K (59,76 kg\/ha) <br><\/strong>Kalis \u012fterptas atskirai \u2014 gera praktika siekiant i\u0161vengti s\u0105veikos su azotu.<\/p>\n\n\n\n<p>Po baland\u017eio m\u0117nesio tr\u0119\u0161im\u0173 prognozuojamas lietus neat\u0117jo. Tai buvo oro prognoz\u0117s, o ne valdymo klaida. Azotas buvo \u012fterptas tinkamose augalo stadijose ir d\u0117l pagr\u012fst\u0173 agronomini\u0173 prie\u017eas\u010di\u0173 \u2014 dirvai tiesiog neteko dr\u0117gm\u0117s, kurios b\u016bt\u0173 reik\u0117j\u0119 jam aktyvuoti.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"542\" src=\"https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soilwater-1024x542.png\" alt=\"\" class=\"wp-image-6561\" srcset=\"https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soilwater-1024x542.png 1024w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soilwater-300x159.png 300w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soilwater-768x406.png 768w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soilwater-1536x813.png 1536w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soilwater.png 1765w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-sezono-metu-priimami-sprendimai-kur-duomenys-butu-suteike-pasirinkima\">Sezono metu priimami sprendimai: kur duomenys b\u016bt\u0173 suteik\u0119 pasirinkim\u0105<\/h2>\n\n\n\n<p>\u010cia realaus laiko dirvo\u017eemio \u017evalgyba kei\u010dia tai, kas \u012fmanoma. Dviem momentais pavasario programos metu Paul-Tech duomenys jau signalizavo apie problem\u0105 \u2014 dar prie\u0161 tr\u0119\u0161im\u0105.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-sprendimo-taskas-1-balandzio-10-d-n2-18-kg-n-ha-p\">Sprendimo ta\u0161kas 1 \u2014 baland\u017eio 10 d. (N2: 18 kg N\/ha + P)<\/h3>\n\n\n\n<p>Antrojo tr\u0119\u0161imo metu dirvo\u017eemio dr\u0117gm\u0117 abiejuose gyliuose jau krito. Dirva buvo produktyvios dr\u0117gm\u0117s apatin\u0117je riboje, art\u0117janti prie lengvo sausros streso. Paul-Tech rytin\u0117 ataskaita b\u016bt\u0173 tai atskleidusi. Kadangi augalas dar buvo ankstyvoje lap\u0173 stadijoje, o azoto poreikis nuosaikus, palaukti 7\u201310 dien\u0173, kol dr\u0117gm\u0117 atsistatys, reik\u0161t\u0173 labai ma\u017e\u0105 derliaus rizik\u0105 \u2014 o laukas liko prava\u017eiuojamas, tai rei\u0161kia, kad galimyb\u0117 gr\u012f\u017eti su sulaikytu azotu i\u0161 tikr\u0173j\u0173 buvo.<\/p>\n\n\n\n<p>K\u0105 Paul-Tech naudotojas b\u016bt\u0173 mat\u0119s: Dirvo\u017eemio dr\u0117gm\u0117 krinta 8 cm ir 20 cm gyliuose. Reik\u0161mingo lietaus nebuvo. Maisto med\u017eiagos lygios \u2014 dar n\u0117ra atsako \u012f pirm\u0105j\u012f tr\u0119\u0161im\u0105.<\/p>\n\n\n\n<p>Galimas sprendimas: Suma\u017einti \u0161\u012f tr\u0119\u0161im\u0105 arba visi\u0161kai sulaikyti. Dar 7\u201310 dien\u0173 palaukti \u0161ioje augimo stadijoje b\u016bt\u0173 k\u0117l\u0119 labai ma\u017e\u0105 derliaus rizik\u0105 ir suma\u017ein\u0119 sausoje dirvoje guolin\u010dio azoto kiek\u012f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-sprendimo-taskas-2-balandzio-12-d-n3-31-5-kg-n-ha\">Sprendimo ta\u0161kas 2 \u2014 baland\u017eio 12 d. (N3: 31,5 kg N\/ha)<\/h3>\n\n\n\n<p>Po dviej\u0173 dien\u0173 dirvo\u017eemio dr\u0117gm\u0117 krito dar labiau. Lietaus nebuvo. Maisto med\u017eiagos ir NO\u2083 buvo visi\u0161kai lyg\u016bs \u2014 jokio atsako nei \u012f pirm\u0105j\u012f, nei \u012f antr\u0105j\u012f tr\u0119\u0161im\u0105. Dirva buvo sausa, u\u017esidariusi ir netiekianti.<\/p>\n\n\n\n<p>K\u0105 Paul-Tech naudotojas b\u016bt\u0173 mat\u0119s: Dirvo\u017eemio dr\u0117gm\u0117 jau lengvo sausros streso zonoje pavir\u0161iniame gylyje. Maisto med\u017eiagos ir NO\u2083 visi\u0161kai lyg\u016bs, nepaisant dviej\u0173 jau atlikt\u0173 tr\u0119\u0161im\u0173. Prieinamumas \u017eemas ir krentantis.<\/p>\n\n\n\n<p>Galimas sprendimas: Jau paskleidus 95,5 kg N\/ha, o augalui dar esant ankstyvoje lap\u0173 stadijoje, \u0161i\u0173 31,5 kg N\/ha sulaikymas, kol dirvo\u017eemio dr\u0117gm\u0117 atsigaus, buvo ma\u017eos rizikos, pagr\u012fstas sprendimas. Vasarini\u0173 mie\u017ei\u0173 azoto poreikis \u0161ioje stadijoje pakankamai lankstus, kad 1\u20132 savai\u010di\u0173 v\u0117lavimas nekainuot\u0173 derliaus \u2014 su s\u0105lyga, kad programa bus u\u017ebaigta prie\u0161 stieb\u0173 ilg\u0117jim\u0105. Galimos sutaupymos: apie 38 \u00a3\/ha su nereik\u0161minga \u012ftaka derliui.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-pasirinkimas-kurio-anksciau-nebuvo\">Pasirinkimas, kurio anks\u010diau nebuvo<\/h2>\n\n\n\n<p>James pri\u0117m\u0117 pagr\u012fstus sprendimus remdamasis prognozuojamu lietumi. Esm\u0117 n\u0117ra ta, kad jis klydo \u2014 esm\u0117 ta, kad Paul-Tech naudotojas \u0161iais momentais turi papildom\u0105 informacijos sluoksn\u012f: gyv\u0105 vaizd\u0105, k\u0105 i\u0161 tikr\u0173j\u0173 daro dirva, o ne tik tai, k\u0105 si\u016blo prognoz\u0117. \u0160ie duomenys, matomi program\u0117l\u0117je kiekvien\u0105 ryt\u0105, paver\u010dia dvejetain\u012f sprendim\u0105 pagr\u012fstu sprendimu.<\/p>\n\n\n\n<p>Ir kas svarbiausia \u2014 tas pats principas galioja bet kur\u012f sezon\u0105. Dr\u0117gnais metais duomenys gali parodyti, kaip maisto med\u017eiagos greitai tirpsta, kaip dirvos mineralizacija prideda prie to, kas jau yra, arba kaip smarkus lietus perkelia nitratus \u017eemiau \u0161akn\u0173 zonos anks\u010diau, nei augalas sp\u0117ja juos pasiekti. Kiekvienas sezonas pasakoja skirting\u0105 istorij\u0105. Tur\u0117ti duomen\u0173 rei\u0161kia gal\u0117ti juos perskaityti ir reaguoti.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"537\" src=\"https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soil-temp-1024x537.png\" alt=\"\" class=\"wp-image-6565\" srcset=\"https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soil-temp-1024x537.png 1024w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soil-temp-300x157.png 300w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soil-temp-768x402.png 768w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soil-temp-1536x805.png 1536w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Soil-temp.png 1788w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-ka-parode-duomenys-astuonios-sausros-savaites-kritiskiausiu-augalo-laikotarpiu\">K\u0105 parod\u0117 duomenys: a\u0161tuonios sausros savait\u0117s kriti\u0161kiausiu augalo laikotarpiu<\/h2>\n\n\n\n<p>Nuo baland\u017eio vidurio iki bir\u017eelio pabaigos dirvo\u017eemio dr\u0117gm\u0117 abiejuose jutikli\u0173 gyliuose krito \u012f sausros streso zon\u0105, kartais art\u0117dama prie vytimo ta\u0161ko. Tai ap\u0117m\u0117 vis\u0105 kr\u016bmijimosi ir stieb\u0173 ilg\u0117jimo stadij\u0105 \u2014 dvi stadijas, kuriomis vasariniai mie\u017eiai formuoja savo derliaus potencial\u0105.<\/p>\n\n\n\n<p>Nepaisant to, kad buvo panaudota 126,5 kg N\/ha, maisto med\u017eiag\u0173 ir nitrat\u0173 lygiai per \u0161\u012f laikotarp\u012f liko lyg\u016bs ir \u017eemi. Azotas buvo dirvoje, bet neliko vandens, kad j\u012f i\u0161tirpint\u0173 ir nune\u0161t\u0173 iki \u0161akn\u0173. Prieinamumas liko prislopintas net tada, kai dirvos temperat\u016bros pakilo \u012f optimal\u0173 augimo interval\u0105.<\/p>\n\n\n\n<p>Kai bir\u017eelio pabaigoje pagaliau at\u0117jo prasmingas lietus, Paul-Tech grafikai parod\u0117 dramati\u0161k\u0105 \u0161uol\u012f tiek maisto med\u017eiag\u0173, tiek nitrat\u0173 lygiuose 8 cm gylyje. Tai tiesioginis \u012frodymas, kad azotas dirvoje buvo i\u0161saugotas per vis\u0105 saus\u0105 laikotarp\u012f \u2014 laukdamas vandens. Tr\u0119\u0161imo programa veik\u0117 lygiai taip, kaip buvo numatyta. Oras \u2014 ne.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"536\" src=\"https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Nitrogen-1-1024x536.png\" alt=\"\" class=\"wp-image-6557\" srcset=\"https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Nitrogen-1-1024x536.png 1024w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Nitrogen-1-300x157.png 300w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Nitrogen-1-768x402.png 768w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Nitrogen-1-1536x804.png 1536w, https:\/\/paul-tech.com\/wp-content\/uploads\/2026\/04\/Nitrogen-1.png 1816w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-rezultatas-5-5-t-ha-dregmes-o-ne-azoto-istorija\">Rezultatas: 5,5 t\/ha \u2014 dr\u0117gm\u0117s, o ne azoto istorija<\/h2>\n\n\n\n<p>Derlius nuimtas liepos 27 d., 5,5 t\/ha, kai \u012fprasta \u016bkio laukiama riba \u2014 7,5\u20138,0 t\/ha. Derliaus skirtumas 2,0\u20132,5 t\/ha beveik visi\u0161kai paai\u0161kinamas dr\u0117gm\u0117s tr\u016bkumu kr\u016bmijimosi ir stieb\u0173 ilg\u0117jimo metu.<\/p>\n\n\n\n<p>Gretimas to paties \u016bkio laukas, valdomas ma\u017eiau intensyviu dirvos paruo\u0161imo b\u016bdu, identi\u0161komis oro s\u0105lygomis dav\u0117 6,0 t\/ha \u2014 tai rodo, kad dirvos trikdymo ma\u017einimas pavasarinio \u016bkininkavimo metu padeda i\u0161saugoti dr\u0117gm\u0119 priemolio dirvose. Abu laukai patyr\u0117 t\u0105 pat\u012f saus\u0105 pavasar\u012f ir t\u0105 pa\u010di\u0105 tr\u0119\u0161imo programos logik\u0105. Skirtumas buvo dirvoje.<\/p>\n\n\n\n<p>Esant 180 \u00a3\/t kainai, 0,5 t\/ha skirtumas tarp dviej\u0173 lauk\u0173 atitinka ma\u017edaug 90 \u00a3\/ha bendr\u0173j\u0173 pajam\u0173 \u2014 naudingas atspirties ta\u0161kas vertinant \u0161ios dirvos tipo s\u0117klos guolio paruo\u0161imo ir dr\u0117gm\u0117s i\u0161saugojimo pusiausvyr\u0105.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-duomenys-veikime-dirvozemio-zvalgybos-naudojimas-tarpines-kulturos-nupurskimo-laikui-nustatyti\">Duomenys veikime: dirvo\u017eemio \u017evalgybos naudojimas tarpin\u0117s kult\u016bros nupur\u0161kimo laikui nustatyti<\/h2>\n\n\n\n<p>Po derliaus nu\u0117mimo Paul-Tech stotis buvo perkelta \u012f nauj\u0105 sm\u0117ling\u0105 lauk\u0105 kitame \u016bkyje. Lik\u0119s azotas i\u0161 sauso 2024\/25 sezono maitino stipri\u0105 tarpin\u0119 kult\u016br\u0105 per 2025 m. ruden\u012f. U\u017euot pur\u0161k\u0119s kalendorin\u0119 dien\u0105, \u016bkininkas steb\u0117jo maisto med\u017eiag\u0173 suma\u017e\u0117jim\u0105 per Paul-Tech program\u0117l\u0119.<\/p>\n\n\n\n<p>Kai duomenys parod\u0117, kad tarpin\u0117 kult\u016bra beveik visi\u0161kai panaudojo maisto med\u017eiagas, jis nusprend\u0117 purk\u0161ti \u2014 u\u017etikrindamas, kad prie\u0161 s\u0117j\u0105 2026 m. neliko didel\u0117s \u017ealios mas\u0117s su neapdorotu azotu.<\/p>\n\n\n\n<p>Jokio sp\u0117liojimo. Jokio kalendoriaus. Tiesiog dirva pasak\u0117, kad darbas baigtas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-kas-toliau\">Kas toliau<\/h2>\n\n\n\n<p>2025\/26 sezonui planuojamos dvi Paul-Tech stotys padalintame lauke \u2014 viena sunkesn\u0117je dirbamoje pus\u0117je, kita lengvesn\u0117je sm\u0117lingoje pus\u0117je po tarpine kult\u016bra. Palyginimas atskleis, kaip skirtingi valdymo b\u016bdai veikia dirvo\u017eemio dr\u0117gm\u0119, maisto med\u017eiag\u0173 prieinamum\u0105 ir augal\u0173 rezultatus kontrastingose to paties \u016bkio dirvose.<\/p>\n\n\n\n<p>\u0160io sezono duomenys tampa atskaitos ta\u0161ku. Istorija t\u0119siasi.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Azoto dirvoje buvo. Dirvai tiesiog reik\u0117jo lietaus. Kaip realaus laiko dirvo\u017eemio duomenys atskleid\u0117 vis\u0105 sauso sezono istorij\u0105 ir \u012frod\u0117, kad&#8230;<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","class_list":["post-6571","casestudies","type-casestudies","status-publish","hentry"],"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>James Brown Naudojimo istorija Vasariniai mie\u017eiai 2024\/25 - 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\/lt\/atvejo-tyrimai\/james-brown-naudojimo-istorija-vasariniai-mieziai-2024-25\/\" \/>\n<meta property=\"og:locale\" content=\"lt_LT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"James Brown Naudojimo istorija Vasariniai mie\u017eiai 2024\/25\" \/>\n<meta property=\"og:description\" content=\"Azoto dirvoje buvo. Dirvai tiesiog reik\u0117jo lietaus. 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