{"id":2737,"date":"2021-12-24T12:01:34","date_gmt":"2021-12-24T11:01:34","guid":{"rendered":"https:\/\/geopard.tech\/?p=2737"},"modified":"2023-08-11T17:32:57","modified_gmt":"2023-08-11T15:32:57","slug":"ako-riadit-slanost-v-polnohospodarstve","status":"publish","type":"post","link":"https:\/\/geopard.tech\/sk\/blog\/how-to-manage-salinity-in-agriculture\/","title":{"rendered":"Ako zvl\u00e1da\u0165 zasolenie v po\u013enohospod\u00e1rstve?"},"content":{"rendered":"<p>Zasolenie p\u00f4dy alebo p\u00f4dy ovplyvnen\u00e9 so\u013eou sa vyskytuje takmer na ka\u017edom mieste na svete, v r\u00f4znych topografi\u00e1ch a r\u00f4znych klimatick\u00fdch podmienkach. <a href=\"https:\/\/geopard.tech\/sk\/blog\/typy-pody-ako-ich-co-najlepsie-vyuzit\/\">p\u00f4dy<\/a> ktor\u00e9 sa nach\u00e1dzaj\u00fa v such\u00fdch a polosuch\u00fdch oblastiach, s\u00fa touto katastrofickou udalos\u0165ou najviac postihnut\u00e9.<\/p>\r\n<p>Tento proces m\u00f4\u017ee prebieha\u0165 vo forme saliniz\u00e1cie alebo sodifik\u00e1cie, \u010do priamo prispieva k degrad\u00e1cii p\u00f4dy a naru\u0161eniu rovnov\u00e1hy ekosyst\u00e9mu. V modernej po\u013enohospod\u00e1rskej \u00e9re s\u00fa p\u00f4dy ovplyvnen\u00e9 so\u013eou v glob\u00e1lnom meradle jedn\u00fdm z hlavn\u00fdch probl\u00e9mov, ktor\u00fdm \u010delia po\u013enohospod\u00e1ri.<\/p>\r\n<p>Slan\u00e1 alebo sod\u00edkov\u00e1 p\u00f4da je okrem svojho prirodzen\u00e9ho v\u00fdskytu aj produktom intenz\u00edvneho po\u013enohospod\u00e1rstva, ktor\u00e9 implementuje konven\u010dn\u00e9 met\u00f3dy a techniky v\u00fdroby potrav\u00edn. Ich existencia a ich r\u00fdchly vznik s\u00fa jednou z hlavn\u00fdch hrozieb pre potravinov\u00fa bezpe\u010dnos\u0165 a udr\u017eate\u013enos\u0165.<\/p>\r\n<h2>Ak\u00e9 s\u00fa typy slanosti p\u00f4dy?<\/h2>\r\n<p><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" data-attachment-id=\"3441\" data-permalink=\"https:\/\/geopard.tech\/sk\/blog\/how-to-manage-salinity-in-agriculture\/soil-salinity-management-in-agriculture-2-min-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-2-min-1.jpg?fit=1200%2C650&amp;ssl=1\" data-orig-size=\"1200,650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"types of soil salinity\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-2-min-1.jpg?fit=1024%2C555&amp;ssl=1\" class=\"alignnone wp-image-3441 size-large\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-2-min-1.jpg?resize=810%2C439&#038;ssl=1\" alt=\"typy slanosti p\u00f4dy\" width=\"810\" height=\"439\" srcset=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-2-min-1.jpg?resize=1024%2C555&amp;ssl=1 1024w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-2-min-1.jpg?resize=300%2C163&amp;ssl=1 300w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-2-min-1.jpg?resize=768%2C416&amp;ssl=1 768w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-2-min-1.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"(max-width: 810px) 100vw, 810px\" \/><\/p>\r\n<p>Slanos\u0165 p\u00f4dy v po\u013enohospod\u00e1rstve je v jednoduch\u0161ej a najpresnej\u0161ej defin\u00edcii vysok\u00e1 koncentr\u00e1cia sol\u00ed v p\u00f4dnom profile. Proces saliniz\u00e1cie m\u00f4\u017ee prebieha\u0165 bu\u010f prirodzene, alebo antropog\u00e9nnou \u010dinnos\u0165ou.<\/p>\r\n<p>Vysok\u00e1 koncentr\u00e1cia sol\u00ed nar\u00fa\u0161a metabolizmus rastl\u00edn, v\u010faka \u010domu nedok\u00e1\u017eu absorbova\u0165 vodu, \u017eiviny a mikroelementy.<\/p>\r\n<p>Rastliny, ktor\u00e9 netoleruj\u00fa vysok\u00fd obsah sol\u00ed alebo sod\u00edka a pestuj\u00fa sa na p\u00f4dach zasiahnut\u00fdch so\u013eou, zvy\u010dajne v\u00e4dn\u00fa alebo zakrpaten\u00e9, \u010do nakoniec vedie k ich \u00fahynu, bez oh\u013eadu na to, ako dobre sa o ne pestovatelia starali.<\/p>\r\n<p><strong>Slanos\u0165 a so\u013e<\/strong><\/p>\r\n<p><img data-recalc-dims=\"1\" decoding=\"async\" data-attachment-id=\"3443\" data-permalink=\"https:\/\/geopard.tech\/sk\/blog\/how-to-manage-salinity-in-agriculture\/soil-salinity-management-in-agriculture-4-min-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-4-min-1.jpg?fit=1200%2C650&amp;ssl=1\" data-orig-size=\"1200,650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Salinity in agriculture represents the total amount of salts in soil\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-4-min-1.jpg?fit=1024%2C555&amp;ssl=1\" class=\"alignnone wp-image-3443 size-large\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-4-min-1.jpg?resize=810%2C439&#038;ssl=1\" alt=\"Slanos\u0165 v po\u013enohospod\u00e1rstve predstavuje celkov\u00e9 mno\u017estvo sol\u00ed v p\u00f4de\" width=\"810\" height=\"439\" srcset=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-4-min-1.jpg?resize=1024%2C555&amp;ssl=1 1024w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-4-min-1.jpg?resize=300%2C163&amp;ssl=1 300w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-4-min-1.jpg?resize=768%2C416&amp;ssl=1 768w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-4-min-1.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"(max-width: 810px) 100vw, 810px\" \/><\/p>\r\n<p>Slanos\u0165 v po\u013enohospod\u00e1rstve predstavuje celkov\u00e9 mno\u017estvo sol\u00ed, ktor\u00e9 sa nach\u00e1dzaj\u00fa v p\u00f4de alebo v ka\u017edom inom m\u00e9diu (horniny, voda at\u010f.) a pod\u013ea defin\u00edcie soli v ka\u017edom anorganickom miner\u00e1le, ktor\u00fd je rozpustn\u00fd vo vode.<\/p>\r\n<p>Najzn\u00e1mej\u0161ou so\u013eou je chlorid sodn\u00fd, ale v po\u013enohospod\u00e1rstve to nie je jedin\u00e1 so\u013e, ktor\u00e1 sa m\u00f4\u017ee vyskytova\u0165 v p\u00f4dnych profiloch. M\u00f4\u017eu by\u0165 kombin\u00e1ciou ve\u013ekej \u010dasti \u010fal\u0161\u00edch prvkov (i\u00f3nov), ako s\u00fa Na+, Ca+2, K+, Mg+2, Cl-, NO3-, SO4-2, HCO3- a CO32-.<\/p>\r\n<p>Ich p\u00f4vod je zvy\u010dajne v podlo\u017enom materi\u00e1li, z ktor\u00e9ho sa vplyvom zvetr\u00e1vania mal\u00e9 mno\u017estv\u00e1 z horn\u00edn rozp\u00fa\u0161\u0165aj\u00fa vo vode, odn\u00e1\u0161aj\u00fa a ukladaj\u00fa v p\u00f4de, podzemn\u00fdch vod\u00e1ch a ve\u013ek\u00fdch vodn\u00fdch ploch\u00e1ch (moriach a oce\u00e1noch).<\/p>\r\n<h2>Vplyv slanosti p\u00f4dy na rastliny<\/h2>\r\n<p>Vysok\u00e1 koncentr\u00e1cia sol\u00ed v p\u00f4de vedie k naru\u0161eniu osmotick\u00e9ho potenci\u00e1lu v bunk\u00e1ch rastliny, najm\u00e4 v kore\u0148ovej z\u00f3ne. Osmotick\u00fd potenci\u00e1l je mechanizmus s prirodzen\u00fdm tokom, ktor\u00fd umo\u017e\u0148uje prenos kvapaliny z m\u00e9dia s vysok\u00fdm obsahom soli do m\u00e9dia s ni\u017e\u0161\u00edm obsahom soli.<\/p>\r\n<p>Presnej\u0161ie povedan\u00e9, v kontexte rastl\u00edn a sol\u00ed to znamen\u00e1, \u017ee rastliny, ktor\u00e9 maj\u00fa v kore\u0148ovom syst\u00e9me ni\u017e\u0161ie koncentr\u00e1cie sol\u00ed, nie s\u00fa schopn\u00e9 z\u00edskava\u0165 vodu a \u017eiviny z p\u00f4dy, ktor\u00e1 m\u00e1 vy\u0161\u0161iu koncentr\u00e1ciu sol\u00ed.<\/p>\r\n<p>Okrem toho, ak je obsah soli v p\u00f4de extr\u00e9mne vysok\u00fd, m\u00f4\u017ee to vies\u0165 k nedostatku vody z kore\u0148ov do p\u00f4dy. Postihnut\u00e9 rastliny zvy\u010dajne v\u00e4dn\u00fa (bez oh\u013eadu na to, ko\u013ekokr\u00e1t bolo pole zavla\u017eovan\u00e9) s typick\u00fdmi pr\u00edznakmi abiotick\u00e9ho stresu, ako je chlor\u00f3za.<\/p>\r\n<h2>Charakteristika slanej p\u00f4dy<\/h2>\r\n<p><img data-recalc-dims=\"1\" decoding=\"async\" data-attachment-id=\"2739\" data-permalink=\"https:\/\/geopard.tech\/sk\/blog\/how-to-manage-salinity-in-agriculture\/soil-salinity-management-in-agriculture-3-min\/\" data-orig-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-3-min.png?fit=1200%2C650&amp;ssl=1\" data-orig-size=\"1200,650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Salinity and salt\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-3-min.png?fit=1024%2C555&amp;ssl=1\" class=\"alignnone wp-image-2739 size-large\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-3-min.png?resize=810%2C439&#038;ssl=1\" alt=\"Charakteristika slanej p\u00f4dy\" width=\"810\" height=\"439\" srcset=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-3-min.png?resize=1024%2C555&amp;ssl=1 1024w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-3-min.png?resize=300%2C163&amp;ssl=1 300w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-3-min.png?resize=768%2C416&amp;ssl=1 768w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/12\/Soil-Salinity-Management-in-Agriculture-3-min.png?w=1200&amp;ssl=1 1200w\" sizes=\"(max-width: 810px) 100vw, 810px\" \/><\/p>\r\n<p>Na z\u00e1klade typu slanosti p\u00f4dy sa m\u00f4\u017eu vytvori\u0165 r\u00f4zne p\u00f4dy, t. j. slan\u00e9, z\u00e1sadit\u00e9 a slano-alkalick\u00e9 p\u00f4dy. Slan\u00e1 p\u00f4da je p\u00f4da, v ktorej je nadbytok sodn\u00fdch sol\u00ed tvoren\u00fdch chloridmi, s\u00edranmi, hydrogenuhli\u010ditanmi a dusi\u010dnanmi sodn\u00fdmi a p\u00f4dne agreg\u00e1ty obsahuj\u00fa vymenite\u013en\u00fd v\u00e1pnik.<\/p>\r\n<p>Alkalick\u00e9 p\u00f4dy zvy\u010dajne vo svojom zlo\u017een\u00ed nemaj\u00fa zv\u00fd\u0161en\u00fd obsah sol\u00ed, ale vysok\u00e9 mno\u017estvo sodn\u00fdch kati\u00f3nov (Na+). Slano-alkalick\u00e9 p\u00f4dy s\u00fa kombin\u00e1ciou dvoch vy\u0161\u0161ie uveden\u00fdch typov p\u00f4dy, kde obsahuj\u00fa nadbytok sol\u00ed a \u00edlu s vysok\u00fdm obsahom sodn\u00fdch i\u00f3nov.<\/p>\r\n<h2>\u010co sp\u00f4sobuje saliniz\u00e1ciu p\u00f4dy<\/h2>\r\n<p>K zasoleniu doch\u00e1dza za ur\u010dit\u00fdch podmienok: topografia po\u013ea n\u00e1chyln\u00e1 na proces zasolenia pod vplyvom kapil\u00e1rneho pohybu a odparovania plytkej a slanej podzemnej vody, v oblastiach s aridnou a semiaridnou kontinent\u00e1lno-substredomorskou kl\u00edmou so silnou evapotranspir\u00e1ciou.<\/p>\r\n<p>Hlavn\u00fdmi zdrojmi sol\u00ed s\u00fa slan\u00e9 paleog\u00e9nne sedimenty a chemick\u00fd rozklad ur\u010dit\u00fdch l\u00e1tok. Vplyv \u010dloveka na vznik a vlastnosti t\u00fdchto p\u00f4d m\u00f4\u017ee by\u0165 nepriamy a priamy.<\/p>\r\n<p>Nepriamy vplyv \u013eudsk\u00fdch vplyvov predstavuje zmena pedogenetick\u00fdch faktorov (hydrografick\u00e9 podmienky, veget\u00e1cia at\u010f.). Priamy vplyv, ktor\u00fd zintenz\u00edv\u0148uje proces saliniz\u00e1cie, nast\u00e1va pri zavla\u017eovan\u00ed rastl\u00edn slanou vodou alebo v d\u00f4sledku aplik\u00e1cie miner\u00e1lnych hnoj\u00edv v p\u00f4dach s n\u00edzkou priepustnos\u0165ou.<\/p>\r\n<p>Tu je nieko\u013eko hlavn\u00fdch situ\u00e1ci\u00ed, ktor\u00e9 ved\u00fa k saliniz\u00e1cii p\u00f4dy: geologick\u00e9 udalosti (nadmern\u00e9 straty organickej hmoty sp\u00f4soben\u00e9 zmenou kl\u00edmy, dia\u013ekov\u00e9 vetry, ktor\u00e9 pren\u00e1\u0161aj\u00fa soli, zemetrasenia, ktor\u00e9 nar\u00fa\u0161aj\u00fa p\u00f4dny profil), pr\u00edrodn\u00e9 faktory (kl\u00edma, typ skaln\u00e9ho podlo\u017eia, krajinn\u00e1 pokr\u00fdvka a topografick\u00e9 charakteristiky pol\u00ed) a antropog\u00e9nne \u010dinnosti (nadmern\u00e1 aplik\u00e1cia miner\u00e1lnych hnoj\u00edv, intenz\u00edvna orba, zavla\u017eovanie vodou obsahuj\u00facou so\u013e, intenz\u00edvna produkcia), ktor\u00e9 m\u00f4\u017eu priamo alebo nepriamo ovplyvni\u0165 koncentr\u00e1ciu sol\u00ed v p\u00f4de.<\/p>\r\n<p><strong>Indik\u00e1tory, ktor\u00e9 sa objavuj\u00fa po\u010das saliniz\u00e1cie p\u00f4dy:<\/strong><\/p>\r\n<ul>\r\n<li>Oblasti na poli, kde je p\u00f4da nadmerne vlhk\u00e1 a zadr\u017eiava vodu<\/li>\r\n<li>Bielenie a v\u00fdskyt kry\u0161t\u00e1lov na povrchu p\u00f4dy<\/li>\r\n<li>Zv\u00fd\u0161en\u00e1 hladina vody v riadkoch<\/li>\r\n<li>Oblasti bez veget\u00e1cie (kv\u00f4li vysok\u00e9mu obsahu soli na danom mieste)<\/li>\r\n<li>Svetl\u00e9 alebo tmav\u00e9 kruhy na p\u00f4de okolo miest, kde sa zadr\u017eiava voda<\/li>\r\n<li>V\u00e4dnutie rastl\u00edn<\/li>\r\n<li>Vyhynutie rastl\u00edn<\/li>\r\n<li>Zn\u00ed\u017een\u00e1 biodiverzita<\/li>\r\n<li>V\u00fdskyt bur\u00edn, ktor\u00e9 s\u00fa tolerantn\u00e9 k vysok\u00fdm koncentr\u00e1ci\u00e1m soli<\/li>\r\n<\/ul>\r\n<h2>Ako sa farm\u00e1ri vyrovn\u00e1vaj\u00fa so zasolen\u00edm?<\/h2>\r\n<p>Pred ak\u00fdmko\u013evek z\u00e1sahom na zmiernenie probl\u00e9mu slanosti p\u00f4dy v po\u013enohospod\u00e1rstve musia ma\u0165 pestovatelia konkr\u00e9tne inform\u00e1cie o situ\u00e1cii na poliach.<\/p>\r\n<p>Jednou z t\u00fdchto \u0161pecifick\u00fdch inform\u00e1ci\u00ed je mapa elektrickej vodivosti \u0161pecifickej lokality a historick\u00e9 satelitn\u00e9 sn\u00edmky. Tieto \u0161pecifick\u00e9 inform\u00e1cie m\u00f4\u017eu poskytn\u00fa\u0165 producentom dostatok inform\u00e1ci\u00ed o p\u00f4vode probl\u00e9mu a o tom, kde sa nach\u00e1dzaj\u00fa najviac degradovan\u00e9 \u010dasti pol\u00ed.<\/p>\r\n<h3><strong>Agrotechnick\u00e9 opatrenia, ktor\u00e9 m\u00f4\u017eu pom\u00f4c\u0165 opravi\u0165 p\u00f4du a zabr\u00e1ni\u0165 zasoleniu:<\/strong><\/h3>\r\n<p><strong>1. Zlep\u0161ite odvodnenie po\u013ea<\/strong><\/p>\r\n<p>To sa d\u00e1 dosiahnu\u0165 hlbokou orbou, teda orbou do h\u013abky 60 a\u017e 80 centimetrov. Hlbok\u00e1 orba pom\u00e1ha rozbi\u0165 kompaktn\u00fa vrstvu p\u00f4dy, ktor\u00e1 m\u00f4\u017ee vznikn\u00fa\u0165 v\u00e1hou po\u013enohospod\u00e1rskych strojov alebo prirodzenou tvorbou \u00edlovitej vrstvy.<\/p>\r\n<p>Naru\u0161en\u00edm kompaktnej vrstvy m\u00f4\u017ee voda vo\u013ene prech\u00e1dza\u0165 do spodn\u00fdch vrstiev a tak odplavova\u0165 soli, ktor\u00e9 sa \u010dasom nahromadili.<\/p>\r\n<p><strong>2. Oplachovanie po\u013ea<\/strong><\/p>\r\n<p>T\u00e1to oper\u00e1cia sa vykon\u00e1va s pomocou ve\u013ek\u00e9ho mno\u017estva vody s n\u00edzkym obsahom sol\u00ed. Tak\u00e1to voda umo\u017e\u0148uje rozpustenie sol\u00ed pr\u00edtomn\u00fdch v p\u00f4de a ich neskor\u0161\u00ed transport do ni\u017e\u0161\u00edch vrstiev.<\/p>\r\n<p><strong>3. Zn\u00ed\u017eenie odparovania<\/strong><\/p>\r\n<p>Odparovanie sa zni\u017euje iba vtedy, ak m\u00e1me na poli trval\u00fa vrstvu veget\u00e1cie alebo bolo pole zamul\u010dovan\u00e9 (\u010di u\u017e z organick\u00e9ho alebo umel\u00e9ho materi\u00e1lu). Zn\u00ed\u017een\u00e9 odparovanie znamen\u00e1, \u017ee pr\u00edtomn\u00e9 soli s\u00fa st\u00e1le pr\u00edtomn\u00e9, ale vo vodnom roztoku a ich oplachovanie v spodn\u00fdch vrstv\u00e1ch je jednoduch\u0161ie.<\/p>\r\n<p><strong>4. Aplik\u00e1cia chemick\u00fdch o\u0161etren\u00ed<\/strong><\/p>\r\n<p>Chemick\u00e9 \u00fapravy sa vykon\u00e1vaj\u00fa pred za\u010dat\u00edm vy\u0161\u0161ie op\u00edsan\u00e9ho umel\u00e9ho oplachovania. Sadra sa zvy\u010dajne prid\u00e1va, aby sa i\u00f3ny sod\u00edka mohli viaza\u0165 na v\u00e1pnik v sadre.<\/p>\r\n<p>T\u00e1to reakcia pom\u00e1ha eliminova\u0165 \u0161kodliv\u00e9 i\u00f3ny, ktor\u00e9 br\u00e1nia spr\u00e1vnemu vstreb\u00e1vaniu \u017eiv\u00edn rastlinami. Opl\u00e1chnut\u00edm p\u00f4dy sa v\u00fdsledn\u00e1 vo vode rozpustn\u00e1 so\u013e d\u00e1 z po\u013ea \u013eahko odstr\u00e1ni\u0165.<\/p>\r\n<p><strong>5. V\u00fdsev tolerantn\u00fdch druhov rastl\u00edn<\/strong><\/p>\r\n<p>Na miestach s vysokou koncentr\u00e1ciou sol\u00ed, kde nie je mo\u017en\u00e9 pestova\u0165 konven\u010dn\u00e9 rastlinn\u00e9 druhy, je potrebn\u00e9 pestova\u0165 plodiny v zasolen\u00fdch p\u00f4dach, ktor\u00e9 s\u00fa vo\u010di soli odoln\u00e9. Medzi najodolnej\u0161ie plodiny patr\u00ed ja\u010dme\u0148, kam\u00e9lia, ra\u017e, \u0161afran, slne\u010dnica a cukrov\u00e1 repa.<\/p>\r\n<p><strong>6. V\u00fdsadba tolerantn\u00fdch kryc\u00edch plod\u00edn<\/strong><\/p>\r\n<p>Ak nie s\u00fa zasiate \u017eiadne ozimn\u00e9 formy obiln\u00edn, polia by mali ma\u0165 kryciu plodinu, ktor\u00e1 ich v jesenno-zimnom obdob\u00ed ochr\u00e1ni pred veternou er\u00f3ziou a evapotranspir\u00e1ciou. Jednou z najlep\u0161\u00edch met\u00f3d je aplik\u00e1cia zmesi ja\u010dme\u0148a, slne\u010dnice a cukrovej repy po zbere letn\u00fdch plodov. <a href=\"https:\/\/geopard.tech\/sk\/monitorovanie-urody\/\">plodiny<\/a>.<\/p>\r\n<p>T\u00e1to zmes vykl\u00ed\u010di a vst\u00fapi do zimn\u00e9ho obdobia vo forme mlad\u00fdch rastl\u00edn, ktor\u00e9 pod vplyvom chladn\u00e9ho po\u010dasia pravdepodobne uhyn\u00fa a zanechaj\u00fa vz\u00e1cne mno\u017estvo dus\u00edka a in\u00fdch \u017eiv\u00edn.<\/p>\r\n<p>Hlavn\u00fdm d\u00f4vodom pestovania kryc\u00edch plod\u00edn odoln\u00fdch vo\u010di soli je minimaliz\u00e1cia evapotranspir\u00e1cie po\u010das mesiacov, kedy by mala by\u0165 p\u00f4da hol\u00e1.<\/p>\r\n<h2>Ako zabr\u00e1ni\u0165 zasoleniu p\u00f4dy<\/h2>\r\n<p>Zasla\u0148ovaniu p\u00f4dy sa d\u00e1 pred\u00eds\u0165 implement\u00e1ciou nieko\u013ek\u00fdch strat\u00e9gi\u00ed v procese riadenia v\u00fdroby. K\u013e\u00fa\u010dom k \u00faspechu s\u00fa relevantn\u00e9 inform\u00e1cie z re\u00e1lnej situ\u00e1cie v ter\u00e9ne, ktor\u00e9 mo\u017eno odvodi\u0165 implement\u00e1ciou r\u00f4znych technol\u00f3gi\u00ed.<\/p>\r\n<p>Medzi tak\u00e9to technol\u00f3gie patria aj p\u00f4dne \u00fapravy \u0161pecifick\u00e9 pre dan\u00e9 miesto <a href=\"https:\/\/geopard.tech\/sk\/odber-vzoriek-pody\/\">anal\u00fdza (p\u00f4dne mapy<\/a>), mapy elektrickej vodivosti, historick\u00e9 satelitn\u00e9\/UAV ortofoto sn\u00edmky, meteorologick\u00e9 senzory a modely v\u00fdpo\u010dtu evapotranspir\u00e1cie.<\/p>\r\n<p>Na z\u00e1klade t\u00fdchto \u00fadajov s\u00fa pestovatelia schopn\u00ed \u00faspe\u0161ne vytv\u00e1ra\u0165 podrobn\u00e9 a ad hoc pl\u00e1ny a rozhodnutia t\u00fdkaj\u00face sa hospod\u00e1renia s plodinami. Na z\u00e1klade t\u00fdchto inform\u00e1ci\u00ed m\u00f4\u017eu strat\u00e9gie zah\u0155\u0148a\u0165 \u00fapravu striedania plod\u00edn, zmenu v zavla\u017eovacom pl\u00e1ne, aplik\u00e1ciu sadry a kyseliny, hlbok\u00fa orbu, \u00fapravu obsahu hnoj\u00edv a aplikovan\u00e9ho mno\u017estva.<\/p>\r\n<hr \/>\r\n<h2>\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\r\n<hr \/>\r\n<p><strong>1. Ak\u00fd je jeden zo sp\u00f4sobov, ako m\u00f4\u017eu \u013eudia zmierni\u0165 vplyv slanej p\u00f4dy na ry\u017eov\u00e9 polia?<\/strong><\/p>\r\n<p>Jedn\u00fdm zo sp\u00f4sobov, ako m\u00f4\u017eu \u013eudia zmierni\u0165 vplyv slanej p\u00f4dy na ry\u017eov\u00e9 polia, je praktizovanie vyl\u00fahovania. Vyl\u00fahovanie zah\u0155\u0148a aplik\u00e1ciu prebyto\u010dnej vody na pole, \u010do jej umo\u017e\u0148uje vsiaknu\u0165 cez p\u00f4du a odplavi\u0165 nahromaden\u00e9 soli.<\/p>\r\n<p>Tento proces pom\u00e1ha zni\u017eova\u0165 obsah soli v p\u00f4de, v\u010faka \u010domu je menej slan\u00e1 a vhodnej\u0161ia na pestovanie ry\u017ee. Okrem toho m\u00f4\u017eu po\u013enohospod\u00e1ri prija\u0165 vylep\u0161en\u00e9 zavla\u017eovacie techniky, ako je striedav\u00e9 zavla\u017eovanie a su\u0161enie alebo pou\u017e\u00edvanie odr\u00f4d ry\u017ee tolerantn\u00fdch vo\u010di slan\u00e9mu prostrediu, aby minimalizovali vplyv slanej p\u00f4dy na produkciu ry\u017ee.<\/p>\r\n<p><strong>2. Pre\u010do je d\u00f4le\u017eit\u00e9, aby po\u013enohospod\u00e1ri poznali koncentr\u00e1cie soli?<\/strong><\/p>\r\n<p>Pre po\u013enohospod\u00e1rov je d\u00f4le\u017eit\u00e9 pozna\u0165 koncentr\u00e1cie sol\u00ed v p\u00f4de, preto\u017ee vysok\u00e9 hladiny soli m\u00f4\u017eu v\u00fdznamne ovplyvni\u0165 rast a v\u00fdnosy plod\u00edn. Monitorovan\u00edm koncentr\u00e1ci\u00ed sol\u00ed m\u00f4\u017eu po\u013enohospod\u00e1ri robi\u0165 informovan\u00e9 rozhodnutia t\u00fdkaj\u00face sa riadenia zavla\u017eovania, \u00faprav p\u00f4dy a v\u00fdberu plod\u00edn.<\/p>\r\n<p>Pochopenie \u00farovne soli pom\u00e1ha po\u013enohospod\u00e1rom implementova\u0165 vhodn\u00e9 strat\u00e9gie na zmiernenie negat\u00edvnych \u00fa\u010dinkov slanosti, ako je \u00faprava zavla\u017eovac\u00edch pl\u00e1nov, implement\u00e1cia odvod\u0148ovac\u00edch syst\u00e9mov alebo v\u00fdber plod\u00edn tolerantn\u00fdch vo\u010di soli.<\/p>\r\n<p>Tieto poznatky umo\u017e\u0148uj\u00fa po\u013enohospod\u00e1rom optimalizova\u0165 svoje po\u013enohospod\u00e1rske postupy a zlep\u0161i\u0165 celkov\u00fa produktivitu plod\u00edn v oblastiach postihnut\u00fdch so\u013eou.<\/p>\r\n<p><strong>3. Ak\u00fd je dobr\u00fd sp\u00f4sob na zn\u00ed\u017eenie saliniz\u00e1cie?<\/strong><\/p>\r\n<p>Dobr\u00fd sp\u00f4sob, ako zn\u00ed\u017ei\u0165 zaso\u013eovanie, zlep\u0161i\u0165 hospod\u00e1renie s vodou, zavies\u0165 \u00fa\u010dinn\u00e9 odvodnenie a precvi\u010dova\u0165 techniky ochrany p\u00f4dy.<\/p>\r\n<p><strong>4. Ktor\u00e1 katastrofick\u00e1 udalos\u0165 m\u00e1 za n\u00e1sledok zv\u00fd\u0161en\u00fa slanos\u0165?<\/strong><\/p>\r\n<p>Z\u00e1plavy s\u00fa katastrofickou udalos\u0165ou, ktor\u00e1 m\u00f4\u017ee vies\u0165 k zv\u00fd\u0161eniu slanosti. Ke\u010f z\u00e1plavov\u00e1 voda opadne, m\u00f4\u017ee zanecha\u0165 na povrchu p\u00f4dy koncentrovan\u00fd roztok sol\u00ed alebo prenikn\u00fa\u0165 do p\u00f4dy, \u010d\u00edm sa zv\u00fd\u0161i hladina soli.<\/p>\r\n<p>Ako sa voda odparuje, soli sa koncentruj\u00fa viac, \u010do vedie k vy\u0161\u0161ej slanosti v postihnut\u00fdch oblastiach. To m\u00f4\u017ee ma\u0165 \u0161kodliv\u00e9 \u00fa\u010dinky na po\u013enohospod\u00e1rsku produktivitu, preto\u017ee vysok\u00e1 hladina soli m\u00f4\u017ee brzdi\u0165 rast rastl\u00edn a po\u0161kodzova\u0165 \u0161trukt\u00faru p\u00f4dy.<\/p>","protected":false},"excerpt":{"rendered":"<p>Zasolenie p\u00f4dy alebo p\u00f4dy ovplyvnen\u00e9 so\u013eou sa vyskytuje takmer na ka\u017edom mieste na svete, v r\u00f4znych topografi\u00e1ch a r\u00f4znych klimatick\u00fdch podmienkach. P\u00f4dy\u2026<\/p>","protected":false},"author":210157960,"featured_media":2741,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_eb_attr":"","content-type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[1380],"tags":[1637],"class_list":["post-2737","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-whats","tag-plant-protection"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Soil Salinity Management in Agriculture\ud83d\udca7<\/title>\n<meta name=\"description\" content=\"Saline soils contain a high accumulation of soluble salts. So we have an idea of how to manage salinity in agriculture. \u2618\ufe0f\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/geopard.tech\/sk\/blog\/ako-riadit-slanost-v-polnohospodarstve\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Soil Salinity Management in Agriculture\ud83d\udca7\" \/>\n<meta property=\"og:description\" content=\"Saline soils contain a high accumulation of soluble salts. 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