After conducting studies (2022-2024) on the effect of the application of the fungus Trichoderma atroviride in two concentrations of spores per milliliter (highe
After conducting studies (2022-2024) on the effect of the application of the fungus Trichoderma atroviride in two concentrations of spores per milliliter (higher and lower), conducting nematological analyses of soil biodiversity and chemical analyses of the soil and olive, the following conclusions were reached: The total biodiversity of nematode genera was the highest in all tested cultivars, at both sites, in treatments with Trichoderma at a spore concentration of 106/ml. This treatment differed statistically significantly in the biodiversity of nematode genera from both the control and the treatment in the spore concentration of 108/ml. although statistically significant differences were observed. The overall biodiversity of nematode genera is higher in treatments with Trichoderma in lower concentration compared to higher, which indicates increased soil disturbance in treatments with higher Trichoderma concentration, and disturbed interactions between soil organisms. As far as cultivars are concerned, no statistically significant differences in biodiversity were observed between cultivars. It can be concluded that the influence of the Trichoderma fungus is more clearly expressed at the Vodnjan site and its concentration compared to the Nadin site. The soil was suitable for olive cultivation in terms of its agrochemical properties, although an extremely low level of phosphorus supply available to the plant and a high level of potassium supply were observed in both localities. At both sites, the level of humus in the soil was at the level of the second year of the study. At both sites, a higher content of macroelements in olive fruit was found compared to the first year of research.
Nakon provedenih ispitivanja (2022.-2024. godina) učinka primjene gljivice Trichoderma atroviride u dvije koncentracije spora po mililitru (viša i niža), provedenih nematoloških analiza bioraznolikosti u tlu i kemijskih analiza tla i ploda masline doneseni su slijedeći zaključci: Ukupna bioraznolikost rodova nematoda bila je kod svih ispitivanih sorata, najveća u tretmanima s Trichodermom atroviride u koncentraciji spora 106/ml. Taj tretman se statistički značajno razlikovao u bioraznolikosti rodova nematoda i od kontrole i od tretmana u koncentraciji spora 108/ml. iako su uočene i statistički značajne razlike. Ukupna bioraznolikost rodova nematoda veća je u tretmanima s Trichodermom u nižoj koncentraciji u odnosu na višu, što ukazuje na povećanu uznemirenost tla u tretmanima s višom koncentracijom Trichoderme, te poremećene interakcije između organizama u tlu. Što se tiče sorata, nisu uočene statistički značajne razlike u bioraznolikosti između sorata. Može se zaključiti kako je na lokalitetu Vodnjan jasnije izražen utjecaj djelovanja gljivice Trichoderma te njene koncentracije u odnosu na lokalitet Nadin. Tlo je po svojim agrokemijskim svojstvima bilo pogodno za uzgoj masline iako je na oba lokaliteta uočena izrazito niska razina opskrbljenosti tla biljci pristupačnim fosforom i visoka razina opskrbljenosti kalijem. Na oba lokaliteta razina humusa u tlu bila je na razini druge godine istraživanja.Na povećanje pristupačnog fosfora u tlu najveći utjecaj je imao tretman 106 trihoderma na lokalitetu Nadin sorta Oblica na dubini od 0-30 cm što je također utvrđeno i u drugoj godini istraživanja. Na oba lokaliteta utvrđen je viši sadržaj makroelemenata u plodu masline u odnosu na prvu godinu istraživanja.
Development of innovative methods of increasing olive yield and olive oil classification
Completed | 2022-2024
- Main funding source
- Rural development 2014-2020 for Operational Groups
- Geographical location
- Croatia