{"id":1360,"date":"2026-07-10T19:18:58","date_gmt":"2026-07-10T19:18:58","guid":{"rendered":"https:\/\/www.goodtips.top\/?p=1360"},"modified":"2026-07-10T19:18:59","modified_gmt":"2026-07-10T19:18:59","slug":"cerna-skvrna-na-rajcatech-pozor-nejde-o-plisen-udelejte-tohle-a-zachrante-urodu-behem-par-dni","status":"publish","type":"post","link":"https:\/\/www.goodtips.top\/?p=1360","title":{"rendered":"\u010cern\u00e1 skvrna na raj\u010datech? Pozor, nejde o pl\u00edse\u0148! Ud\u011blejte TOHLE a zachra\u0148te \u00farodu b\u011bhem p\u00e1r dn\u00ed"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Objevili jste na spodn\u00ed stran\u011b raj\u010dat suchou \u010dernou skvrnu? Ne\u017e s\u00e1hnete po chemii proti pl\u00edsni, zastavte se! Jde o \u0161pi\u010dkovou hnilobu zp\u016fsobenou nedostatkem v\u00e1pn\u00edku. Zde je rychl\u00e9 \u0159e\u0161en\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u011b\u0161\u00edte se na prvn\u00ed velk\u00e1 raj\u010data, ale kdy\u017e plod oto\u010d\u00edte, \u010dek\u00e1 v\u00e1s nep\u0159\u00edjemn\u00e9 p\u0159ekvapen\u00ed \u2013 zespodu je velk\u00e1, such\u00e1, propadl\u00e1 \u010dern\u00e1 nebo hn\u011bd\u00e1 skvrna. Prvn\u00ed my\u0161lenka v\u011bt\u0161iny zahr\u00e1dk\u00e1\u0159\u016f b\u00fdv\u00e1: <em>&#8220;A sakra, u\u017e je to tady, pl\u00edse\u0148 mi likviduje \u00farodu!&#8221;<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pravda je ale \u00fapln\u011b jinde. Na obr\u00e1zku vid\u00edte u\u010debnicov\u00fd projev takzvan\u00e9 <strong>such\u00e9 skvrnitosti (hniloby) stopkov\u00e9ho konce plod\u016f<\/strong> (\u010dasto naz\u00fdvan\u00e9 \u0161pi\u010dkov\u00e1 hniloba raj\u010dat). Dobr\u00e1 zpr\u00e1va je, \u017ee to nen\u00ed infek\u010dn\u00ed choroba a ne\u0161\u00ed\u0159\u00ed se vzduchem. Ta \u0161patn\u00e1? Pokud nezm\u011bn\u00edte p\u00e9\u010di, p\u0159ijdete o v\u0161echny velk\u00e9 plody.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">O co vlastn\u011b jde? Vol\u00e1n\u00ed o pomoc kv\u016fli v\u00e1pn\u00edku<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tento probl\u00e9m m\u00e1 jedinou hlavn\u00ed p\u0159\u00ed\u010dinu \u2013 <strong>rostlina trp\u00ed akutn\u00edm nedostatkem v\u00e1pn\u00edku ($Ca$) v plodech<\/strong>. V\u00e1pn\u00edk je z\u00e1kladn\u00edm stavebn\u00edm kamenem bun\u011b\u010dn\u00fdch st\u011bn. Kdy\u017e chyb\u00ed, bu\u0148ky na \u0161pi\u010dce plodu doslova zkolabuj\u00ed, odum\u0159ou a z\u010dernaj\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zaj\u00edmav\u00e9 je, \u017ee v\u00e1pn\u00edku m\u016f\u017ee b\u00fdt v p\u016fd\u011b dostatek, ale rostlina ho nedok\u00e1\u017ee dostat nahoru do plod\u016f. Pro\u010d se to d\u011bje?<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Nepravideln\u00e9 zal\u00e9v\u00e1n\u00ed (hlavn\u00ed vin\u00edk):<\/strong> V\u00e1pn\u00edk se v rostlin\u011b pohybuje v\u00fdhradn\u011b pomoc\u00ed vody (transpirac\u00ed). Pokud z\u00e1hon jednou p\u0159eschne a pak ho utop\u00edte, proud\u011bn\u00ed \u017eivin se p\u0159eru\u0161\u00ed a plody za\u010dnou \u010dernat.<\/li>\n\n\n\n<li><strong>Extr\u00e9mn\u00ed vedra:<\/strong> V horku listy odpa\u0159uj\u00ed obrovsk\u00e9 mno\u017estv\u00ed vody a rostlina pos\u00edl\u00e1 ve\u0161kerou vl\u00e1hu (i s v\u00e1pn\u00edkem) do list\u016f, zat\u00edmco na plody u\u017e nezbyde.<\/li>\n\n\n\n<li><strong>P\u0159ehnojen\u00ed dus\u00edkem:<\/strong> P\u0159\u00edli\u0161 mnoho dus\u00edku zp\u016fsobuje raketov\u00fd r\u016fst list\u016f, kter\u00e9 v\u00e1pn\u00edk plod\u016fm doslova &#8220;vyfouknou&#8221;.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Okam\u017eit\u00e1 prvn\u00ed pomoc: Jak zachr\u00e1nit zbytek \u00farody?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud se u\u017e skvrna na raj\u010deti objevila, tento konkr\u00e9tn\u00ed plod se neuzdrav\u00ed (m\u016f\u017eete ho odtrhnout a vyhodit). Mus\u00edte ale okam\u017eit\u011b jednat, abyste ochr\u00e1nili ostatn\u00ed, nov\u011b rostouc\u00ed raj\u010data.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Rychl\u00fd z\u00e1sah na list (Nej\u00fa\u010dinn\u011bj\u0161\u00ed metoda)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hnojen\u00ed do p\u016fdy v t\u00e9to f\u00e1zi nepom\u016f\u017ee, proto\u017ee cesta ko\u0159eny trv\u00e1 p\u0159\u00edli\u0161 dlouho. Mus\u00edte v\u00e1pn\u00edk dodat p\u0159\u00edmo tam, kde chyb\u00ed.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kupte v zahradnictv\u00ed tekut\u00e9 v\u00e1penat\u00e9 hnojivo (nap\u0159. <em>Wuxal Kalcium<\/em> nebo <em>Harmonie V\u00e1pn\u00edk<\/em>).<\/li>\n\n\n\n<li>P\u0159ipravte roztok a <strong>aplikujte ho post\u0159ikem p\u0159\u00edmo na listy a plody<\/strong>.<\/li>\n\n\n\n<li>Rostlina v\u00e1pn\u00edk vst\u0159eb\u00e1 p\u0159es listy b\u011bhem n\u011bkolika hodin a nov\u011b nasazen\u00e9 plody u\u017e budou dokonale zdrav\u00e9. Post\u0159ik opakujte 2\u20133kr\u00e1t v rozestupu jednoho t\u00fddne.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Dom\u00e1c\u00ed z\u00e1chrana z l\u00e9k\u00e1rny: Chlorid v\u00e1penat\u00fd<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud nem\u00e1te po ruce speci\u00e1ln\u00ed hnojivo, v l\u00e9k\u00e1rn\u011b se d\u00e1 koupit chlorid v\u00e1penat\u00fd (tekut\u00fd). Rozpus\u0165te 10\u201315 ml v 10 litrech vody a aplikujte stejn\u011b jako post\u0159ik na list po z\u00e1padu slunce.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Srovnejte z\u00e1livku<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Udr\u017eujte p\u016fdu st\u00e1le m\u00edrn\u011b vlhkou. Raj\u010data v obdob\u00ed r\u016fstu plod\u016f nesm\u00ed za\u017e\u00edt \u0161ok z \u00fapln\u00e9ho vyschnut\u00ed substr\u00e1tu. Ide\u00e1ln\u00ed pomoc\u00ed je siln\u00e1 vrstva mul\u010de (sl\u00e1ma, tr\u00e1va), kter\u00e1 udr\u017e\u00ed stabiln\u00ed vlhkost v ko\u0159enov\u00e9 z\u00f3n\u011b.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u010cern\u00e1 skvrna ze spodu raj\u010dat je jasn\u00fdm sign\u00e1lem, \u017ee rostlina \u017e\u00edzn\u00ed nebo j\u00ed chyb\u00ed v\u00e1pn\u00edk. Ne panika\u0159it a nest\u0159\u00edkat chemi\u00ed proti pl\u00edsn\u00edm! Sta\u010d\u00ed rychl\u00fd v\u00e1penat\u00fd post\u0159ik na list, pravideln\u00e1 z\u00e1vlaha a va\u0161e srpnov\u00e1 sklize\u0148 bude op\u011bt stoprocentn\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Objevili jste na spodn\u00ed stran\u011b raj\u010dat suchou \u010dernou skvrnu? Ne\u017e s\u00e1hnete po chemii proti pl\u00edsni, zastavte se! Jde o \u0161pi\u010dkovou hnilobu zp\u016fsobenou nedostatkem v\u00e1pn\u00edku. Zde je rychl\u00e9 \u0159e\u0161en\u00ed. T\u011b\u0161\u00edte se na prvn\u00ed velk\u00e1 raj\u010data, ale kdy\u017e plod oto\u010d\u00edte, \u010dek\u00e1 v\u00e1s nep\u0159\u00edjemn\u00e9 p\u0159ekvapen\u00ed \u2013 zespodu je velk\u00e1, such\u00e1, propadl\u00e1 \u010dern\u00e1 nebo&#8230;<\/p>\n","protected":false},"author":1,"featured_media":1361,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1360","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tipy-pro-kazdy-den"],"_links":{"self":[{"href":"https:\/\/www.goodtips.top\/index.php?rest_route=\/wp\/v2\/posts\/1360","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.goodtips.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.goodtips.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.goodtips.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.goodtips.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1360"}],"version-history":[{"count":1,"href":"https:\/\/www.goodtips.top\/index.php?rest_route=\/wp\/v2\/posts\/1360\/revisions"}],"predecessor-version":[{"id":1362,"href":"https:\/\/www.goodtips.top\/index.php?rest_route=\/wp\/v2\/posts\/1360\/revisions\/1362"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.goodtips.top\/index.php?rest_route=\/wp\/v2\/media\/1361"}],"wp:attachment":[{"href":"https:\/\/www.goodtips.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.goodtips.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.goodtips.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}