Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 1
Written by Luca PATRUNO, Veronica SĂRĂȚEANU
This study evaluates the impact of nitrogen-fixing and phosphorus-solubilizing bacteria (Azotobacter vinelandii, Azotobacter chrococcum, Bacillus megaterium) and biostimulants on the productivity and nutraceutical properties of waxy corn (Zea mays). Conducted in 2024 at the University of Life Sciences “King Mihai I” from Timișoara, the field experiment involved sowing corn on May 15, with bacterial treatments applied on June 6 and July 4. The results showed that microbial treatments significantly improved germination, yield, and nutraceutical properties. Among the treatments, Azotobacter vinelandii had the greatest impact, enhancing germination rates, yield, and antioxidant activity, vitamin E levels and magnesium content compared to the control group. Biostimulant applications, particularly at higher doses, resulted in moderate improvements, though microbial treatments were more effective. Compared to a similar study conducted in 2023, Azotobacter vinelandii outperformed its prior results, achieving higher productivity and better crop quality under optimized conditions. These findings underscore the potential of microbial inoculants and biostimulants to enhance crop performance while promoting sustainable agriculture. Their integration into farming practices can reduce reliance on chemical inputs and support environmentally friendly approaches.
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