Effects of green manure on physical and chemical characteristics of soil and maize yield

U procjeni kvalitete tla razlikujemo fizikalne, kemijske i biološke parametre. Zelenom gnojidbom tlo se obogaćuje organskom tvari, poboljšava se biološka aktivnost tla, koriste teže pristupačna hraniva, utječe na biološku drenažu tla, povećava kapacitet tla za vodu, utječe na pedohigijenu, osigurava opskrba tla organskom tvari i bolja pristupačnost hraniva. Zelena gnojidba predstavlja važnu mjeru koja ima cilj očuvanje optimalnih fizikalnih svojstava i povećanje plodnosti tla. Ovim istraživanjem, potvrđeno je da zelena gnojidba povoljno utječe na reakciju tla, odnosno porastom pH dovodi to do neutralne reakcije, porast biogenih elemenata, kao i na poboljšanje njihovih odnosa u periodu od godine dana (jesen 2020. – jesen 2021.). Nije potvrđena korelacija između zelene gnojidbe i poboljšanja fizikalnih svojstava tla. Nije uočena pozitivna korelacija između zelene gnojidbe i prinosa kukuruza, obzirom da se prinos pokazao manjim na tretmanu na kojem je primijenjena zelena gnojidba.In assessing soil quality, we distinguish between physical, chemical and biological parameters. Green manure enriches the soil with organic matter, improves the biological activity of the soil, uses less accessible nutrients, affects the biological drainage of the soil, increases the soil's water capacity, affects pedohygiene, ensures the supply of soil with organic matter and better access to nutrients. Green manure is an important measure that aims to preserve preserving optimal physical properties and increasing soil fertility. With this research, it was confirmed that green manure has a favorable effect on the reaction of the soil, pH increased to a neutral reaction, the increase of biogenic elements, as well as on the improvement of their relations in a period of one year (autumn 2020 - autumn 2021). The correlation between green manure and improvement of soil physical properties has not been confirmed. No positive correlation was observed between green manure and maize yield, as the yield proved to be lower on the plots where the treatment was applied