{"id":38786,"date":"2016-08-31T10:09:30","date_gmt":"2016-08-31T07:09:30","guid":{"rendered":"https:\/\/www.17047165566933.sritis.lt\/index.php\/2016\/08\/31\/gamtininkai-kviecia-kovoti-su-rykstene\/"},"modified":"2016-08-31T10:09:30","modified_gmt":"2016-08-31T07:09:30","slug":"gamtininkai-kviecia-kovoti-su-rykstene","status":"publish","type":"post","link":"https:\/\/www.santaka.info\/index.php\/2016\/08\/31\/gamtininkai-kviecia-kovoti-su-rykstene\/","title":{"rendered":"Gamtininkai kvie\u010dia kovoti su ryk\u0161tene"},"content":{"rendered":"

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Gamtininkai pataria \u017emon\u0117ms nesi\u017eav\u0117ti šiuo metu laukus ir pievas geltonais \u017eiedais u\u017etvind\u017eiusiomis rykšten\u0117mis ir su jomis kovoti. <\/p>\n

Tai m\u016bs\u0173 šaliai svetimas augalas, išstumiantis vietines r\u016bšis. \u017dydin\u010dios rykšten\u0117s pakeit\u0117 vasaros prad\u017eioje m\u0117lynavusius kito invazinio augalo – gausialapio lubino – \u017eied\u0173 kilimus. \u012e Lietuvos invazini\u0173 r\u016bši\u0173 s\u0105raš\u0105 dabar \u012ftrauktos trys rykšteni\u0173 r\u016bšys: kanadin\u0117, aukštoji ir did\u017eioji (v\u0117lyvoji). <\/p>\n

Visos invazini\u0173 rykšteni\u0173 r\u016bšys paplitusios beveik visoje šalies teritorijoje. Ypa\u010d gaus\u016bs j\u0173 s\u0105\u017ealynai veši aplink miestus, gyvenvietes ir apleistuose \u017eem\u0117s plotuose. D\u0117l v\u0117lyvo \u017eyd\u0117jimo ir ryškios geltonos spalvos rykštenes daug kas m\u0117gsta ir augina kaip dekoratyvinius augalus. Bandoma auginti ir nauj\u0173 j\u0173 r\u016bši\u0173 bei kurti veisles. Ta\u010diau, pasak mokslinink\u0173, visos rykšteni\u0173 r\u016bšys ir veisl\u0117s, išskyrus vietin\u0119 r\u016bš\u012f – paprast\u0105j\u0105 rykšten\u0119, gali išplisti nat\u016bralioje aplinkoje ir kelti gr\u0117sm\u0119 m\u016bs\u0173 biologinei \u012fvairovei. Tod\u0117l gamtininkai kvie\u010dia neauginti joki\u0173 r\u016bši\u0173 ir veisli\u0173 rykšteni\u0173, pavienius augalus iškasti, o ataugusias at\u017ealas nupurkšti herbicidais. Pjauti rykšteni\u0173 s\u0105\u017ealynus reikia dar prieš \u017eyd\u0117jim\u0105, kad nesubrandint\u0173 s\u0117kl\u0173 ir jomis neplist\u0173. Po to rekomenduojama taikyti intensyvias agrotechnines ir chemines naikinimo priemones. Da\u017enai rykštenes \u017emon\u0117s platina nes\u0105moningai – nuskintus \u017eiedynus išmeta \u012f šiukšlynus, s\u0105vartynus, pamiškes ar kitur ir net nepagalvoja, kad iš s\u0117kl\u0173 išaugs nauji augalai.

\nKada m\u016bs\u0173 šalyje rykštenes imta auginti kaip dekoratyvinius augalus, n\u0117ra tiksliai \u017einoma. Pavyzd\u017eiui, aukštoji rykšten\u0117, oficialiais duomenimis, Anglijoje prad\u0117ta auginti 1645 m., Latvijoje – 1805 m., Lietuvoje – 1983 m. Europoje rykšten\u0117s \u017eeldynuose labiausiai paplito XIX am\u017eiuje. Nuo tada jos \u0117m\u0117 skverbtis \u012f pievas, dirvonus, pamiškes, pakeles, vandens telkini\u0173 pakrantes ir kitas atviras buveines.

\nRykšten\u0117s kilusios iš Šiaur\u0117s Amerikos. Tai daugiame\u010diai, tankius kerus sudarantys augalai. Jie nereikl\u016bs dirvo\u017eemiui, ištveria net iki 40 laipsni\u0173 šal\u010dius. Rykšten\u0117s, ypa\u010d did\u017eiosios, išaugina daug ilg\u0173 šakniastiebi\u0173. Tankiuose j\u0173 s\u0105\u017ealynuose beveik nelieka kit\u0173 \u017eolini\u0173 augal\u0173. D\u0117l to labai nuken\u010dia nat\u016bralios augal\u0173 bendrijos, suma\u017e\u0117ja ir gyv\u016bn\u0173 r\u016bši\u0173. Did\u017eiosios rykšten\u0117s iš dirvo\u017eemio pasiima gerokai daugiau maisto med\u017eiag\u0173 nei vietiniai augalai, ir jis labai par\u016bgšt\u0117ja. <\/p>\n

Rykšten\u0117s dauginasi v\u0117jo nešiojamomis s\u0117klomis ir neretai po\u017eeminiais šakniastiebiais. Tyrimais nustatyta, kad vienas kanadin\u0117s rykšten\u0117s \u016bglis gali subrandinti net iki 20 t\u016bkst. s\u0117kl\u0173. Kai \u017eydi dideli rykšteni\u0173 plotai, j\u0173 \u017eiedadulk\u0117s jautresniems \u017emon\u0117ms gali sukelti alergin\u0119 reakcij\u0105. <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Gamtininkai pataria \u017emon\u0117ms nesi\u017eav\u0117ti šiuo metu laukus ir pievas geltonais \u017eiedais u\u017etvind\u017eiusiomis rykšten\u0117mis ir su jomis kovoti. Tai m\u016bs\u0173 šaliai svetimas augalas, išstumiantis vietines r\u016bšis. \u017dydin\u010dios rykšten\u0117s pakeit\u0117 vasaros prad\u017eioje… <\/p>\n","protected":false},"author":1,"featured_media":38787,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pmpro_default_level":"","jetpack_post_was_ever_published":false,"_FSMCFIC_featured_image_caption":" \/ S. Paltanavi\u010diaus nuotr.","_FSMCFIC_featured_image_nocaption":"","_FSMCFIC_featured_image_hide":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[108],"tags":[],"class_list":["post-38786","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gamta","pmpro-has-access"],"featured_image_urls":{"full":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930.jpg",260,173,false],"thumbnail":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930-150x150.jpg",150,150,true],"medium":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930.jpg",260,173,false],"medium_large":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930.jpg",260,173,false],"large":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930.jpg",260,173,false],"1536x1536":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930.jpg",260,173,false],"2048x2048":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930.jpg",260,173,false],"post-thumbnail":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930.jpg",260,173,false],"visualnews_post_thumb":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930.jpg",260,173,false],"woocommerce_thumbnail":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930.jpg",260,173,false],"woocommerce_single":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930.jpg",260,173,false],"woocommerce_gallery_thumbnail":["https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930-100x100.jpg",100,100,true]},"author_info":{"info":["admin"]},"category_info":"Gamta<\/a>","tag_info":"Gamta","comment_count":"0","jetpack_featured_media_url":"https:\/\/www.santaka.info\/wp-content\/uploads\/2024\/12\/20160831100930.jpg","jetpack_sharing_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.santaka.info\/index.php\/wp-json\/wp\/v2\/posts\/38786","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.santaka.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.santaka.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.santaka.info\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.santaka.info\/index.php\/wp-json\/wp\/v2\/comments?post=38786"}],"version-history":[{"count":0,"href":"https:\/\/www.santaka.info\/index.php\/wp-json\/wp\/v2\/posts\/38786\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.santaka.info\/index.php\/wp-json\/wp\/v2\/media\/38787"}],"wp:attachment":[{"href":"https:\/\/www.santaka.info\/index.php\/wp-json\/wp\/v2\/media?parent=38786"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.santaka.info\/index.php\/wp-json\/wp\/v2\/categories?post=38786"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.santaka.info\/index.php\/wp-json\/wp\/v2\/tags?post=38786"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}