{"id":37509,"date":"2026-06-27T04:09:41","date_gmt":"2026-06-27T04:09:41","guid":{"rendered":"https:\/\/cp.snarskis.lt\/index.php\/2026\/06\/27\/geltoni-cesnaku-lapai-ispeja-apie-beda-ko-truksta-dirvoje-ir-kaip-isgelbeti-derliu\/"},"modified":"2026-06-27T04:09:41","modified_gmt":"2026-06-27T04:09:41","slug":"geltoni-cesnaku-lapai-ispeja-apie-beda-ko-truksta-dirvoje-ir-kaip-isgelbeti-derliu","status":"publish","type":"post","link":"https:\/\/cp.snarskis.lt\/index.php\/2026\/06\/27\/geltoni-cesnaku-lapai-ispeja-apie-beda-ko-truksta-dirvoje-ir-kaip-isgelbeti-derliu\/","title":{"rendered":"Geltoni \u010desnak\u0173 lapai \u012fsp\u0117ja apie b\u0117d\u0105: ko tr\u016bksta dirvoje ir kaip i\u0161gelb\u0117ti derli\u0173"},"content":{"rendered":"

\u010cesnakai da\u017enai pirmieji parodo, kad dirvoje ka\u017eko tr\u016bksta: lapai praranda sodri\u0105 spalv\u0105, ima gelsti ar d\u017ei\u016bti. Tokie po\u017eymiai n\u0117ra vien kosmetin\u0117 problema, nes maisto med\u017eiag\u0173 stygius gali sul\u0117tinti augim\u0105 ir suma\u017einti galvu\u010di\u0173 dyd\u012f.<\/p>\n

Svarbu atskirti, ar gelsta senesni, apatiniai lapai, ar d\u017ei\u016bsta j\u0173 galiukai, nes tai gali rodyti skirtingus tr\u016bkumus. Praktikoje \u010desnakams da\u017eniausiai pritr\u016bksta azoto, fosforo arba kalio, ypa\u010d lengvesn\u0117se, greitai i\u0161siplaunan\u010diose dirvose.<\/p>\n

Da\u017eniausiai kaltas azotas<\/h2>\n

Jeigu pirmiausia gelsta apatiniai, seniausi lapai, o v\u0117liau spalva blunka visame lape, da\u017enas kaltininkas yra azoto tr\u016bkumas. Augalas perkelia turimus i\u0161teklius \u012f jaunesnius lapus, tod\u0117l \u201enuken\u010dia\u201c senoji lapija.<\/p>\n

Ilgiau u\u017esit\u0119s\u0119s azoto stygius paprastai rei\u0161kia l\u0117tesn\u012f augim\u0105 ir ma\u017eesnes \u010desnako galvutes. Lapai gali tapti standesni, gelsvai \u017ealsvi, kartais \u0161iek tiek susisuk\u0119, o visas kerelis atrodo silpnesnis.<\/p>\n

Kai augimas sul\u0117t\u0117ja<\/h2>\n

Fosforo tr\u016bkumas da\u017eniau pasirei\u0161kia ne staigiu geltimu, o bendru augimo sul\u0117t\u0117jimu ir i\u0161blukusia, ma\u017eiau intensyvia \u017ealuma. Tokie po\u017eymiai lengvai praleid\u017eiami pro akis, nes pokytis vyksta palaipsniui.<\/p>\n

Tr\u016bkstant fosforo, nuken\u010dia \u0161akn\u0173 sistema ir galvu\u010di\u0173 formavimasis, tod\u0117l augalai gali v\u0117liau br\u0119sti, o derlius b\u016bna prastesn\u0117s kokyb\u0117s. Praktinis signalas po derliaus nu\u0117mimo \u2013 silpniau susiformavusios apsaugin\u0117s sausos luobel\u0117s, d\u0117l ko laikymas sand\u0117liuojant tampa sud\u0117tingesnis.<\/p>\n

Apdeg\u0119 galiukai ir d\u017ei\u016bvimas<\/h2>\n

Jeigu pirmiausia d\u017ei\u016bsta lap\u0173 galiukai, tarsi b\u016bt\u0173 lengvai \u201eapsvil\u0119\u201c, o v\u0117liau senesni lapai gelsta ir nunyksta, da\u017enai tai susij\u0119 su kalio tr\u016bkumu. Kalis svarbus vandens apykaitai ir atsparumui kar\u0161\u010diui bei laikiniems sausros periodams.<\/p>\n

Tokiu atveju jaunesni lapai dar gali i\u0161likti tamsiai \u017eali, ta\u010diau bendra augalo b\u016bkl\u0117 blog\u0117ja, o derlius ma\u017e\u0117ja. Ilg\u0117jant kar\u0161tiems ir sausesniems periodams, kalio svarba ypa\u010d i\u0161ry\u0161k\u0117ja, nes \u010desnakai jautriau reaguoja \u012f dr\u0117gm\u0117s svyravimus.<\/p>\n

Norint tiksliau nustatyti prie\u017east\u012f, patikimiausia remtis dirvo\u017eemio tyrimais ir tr\u0119\u0161imo planu, o ne vien vizualiais po\u017eymiais. Taip galima i\u0161vengti situacijos, kai tr\u0105\u0161os panaudojamos netinkamai, o problema lieka, nes augalui tr\u016bko visai kito elemento arba trukd\u0117 dirvos pH ir maisto med\u017eiag\u0173 pasisavinimas.<\/p>\n","protected":false},"excerpt":{"rendered":"

Geltoni \u010desnak\u0173 lapai da\u017enai rodo azoto, fosforo ar kalio tr\u016bkum\u0105: paai\u0161kiname po\u017eymius ir k\u0105 daryti, kad derlius nesusmukt\u0173.<\/p>\n","protected":false},"author":0,"featured_media":37510,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13],"tags":[3402,2051,7336,4840,714,2028],"miestas":[],"class_list":["post-37509","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kultura","tag-azotas","tag-cesnakai","tag-dirvozemio-tyrimai","tag-fosforas","tag-kalis","tag-tresimas"],"acf":[],"_links":{"self":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts\/37509","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/comments?post=37509"}],"version-history":[{"count":0,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts\/37509\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/media\/37510"}],"wp:attachment":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/media?parent=37509"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/categories?post=37509"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/tags?post=37509"},{"taxonomy":"miestas","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/miestas?post=37509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}