Plants reaction to soil pH value
| Autor: | Bertić, Larisa |
|---|---|
| Přispěvatelé: | Jug, Irena, Đurđević, Boris, Vukadinović, Vesna |
| Jazyk: | chorvatština |
| Rok vydání: | 2017 |
| Předmět: | |
| Popis: | Reakcija otopine tla značajno utječe na kemijska, fizikalna i biološka svojstva tla kao i na pristupačnost i mobilnost hraniva što se reflektira na rast i razvoj biljaka. U poljoprivrednoj proizvodnji ovaj pokazatelj može biti limitirajući čimbenik. U kiseloj sredini ioni aluminija i mangana mogu imati toksično djelovanje na biljku te je povećana bioraspoloživost nekih teških metala, a smanjena pristupačnost drugih elemenata. U alkalnoj sredini biljci je smanjena pristupačnost većine biogenih elemenata, posebno mikroelemenata (osim Mo). pH reakcija tla potrebna za rast i razvoj većine poljoprivrednih vrsta kreće se između 4 i 8 dok hortikulturno bilje najbolje uspijeva na slabo kiselim i neutralnim tlima. Ovisno o pH vrijednosti tla biljne vrste su podijeljene u tri skupine: acidofilne, neutrofilne i alkalofilne. U fitocenozama nalazimo veliki broj samoniklog bilja i korova koji nam svojom brojnošću i pojavnošću indiciraju pH reakciju tla. Pri odabiru biljne vrste potrebno je voditi računa o pH reakciji tla jer neodgovarajuće tlo ili biljna vrsta rezultirat će lošim izgledom, propadanjem biljaka i/ili gubitkom prinosa. Reaction of soil solution have a significant influence on chemical, physical and biological properties of the soil, nutrition bioavailability which is reflected on the growth and plants development. In agricultural production this indicator could be a limiting factor. In acidic soil aluminium and manganese ions can have toxic effects on the plant, bioavailability of some heavy metals are increased and accessibilitiy of other metals are reduced. In alkaline soil the accesibility of most biogenic elements to the plants are reduced, especially microelements (except Mo). pH reaction of soil required for growth and development of most agricultural plants ranges between 4 and 8 while horticultural plants trive on low-acidic and neutral soil. Depending on the soil pH values plant species are divided into three groups: acidophilic, neutrophilic and alcalophilic plants. In phytocenosis we can find a large number of wild plants and weeds which by number and appearance indicate the pH of soil reaction. When selecting plant species, it is necessary to take care of pH soil reaction, otherwise inadequate soil or plant species will result in poor plant appearance, plant decay and/or loss of yield. |
| Databáze: | OpenAIRE |
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