PRELIMINARY RESULTS REGARDING THE EFFECTS OF GREEN MANURES ON WHEAT CULTIVATION ON THE ACIDIC SOILS OF THE NORTH-WEST REGION OF ROMANIA

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Peter-Balazs Acs
Ioan PACURAR
Beniamin-Emanuel ANDRAS
Patrick Andrei URSAN
Susana MONDICI

Abstract

This study addressed the burgeoning interest in ecological agriculture, emphasizing sustainable and regenerative practices. Among these, the utilization of green manures emerged as pivotal for enhancing soil health and augmenting the yield of nutritionally dense crops. Five plant species (triticale, peas, soybeans, sunflower, and rapeseed) were selected for incorporation, sown during the summer, and subsequently integrated into the soil while still in their vegetative phase, preceding the optimal sowing window for wheat.


               The experiment encompassed three repetitions for the principal crop, of wheat implemented through split-plot design. Each repetition comprised both a fertilized and an unfertilized plot, further sub-divided, with certain segments receiving fungicidal treatment and others left untreated. The experimental setup was situated on an albic luvisol, exhibiting humus content ranging from 1% to 1.8% in the plow layer, coupled with an acidic pH range of 4.2 to 5.3. The trial site was located within the experimental fields of the Plant Protection Laboratory at the Livada Agricultural Research and Development Station, Satu Mare County.


               The primary aim of this experiment was to evaluate the influence of green manures, including their synergistic interplay with chemical fertilizers (calcium ammonium nitrate 27% N), on wheat. Evaluative parameters encompassed yield metrics, weed infestation levels, disease and pest resistance, along with the quality attributes of the principal crops. Ultimately, the study sought to furnish a encompassing comprehension of the advantages conferred by this regenerative agricultural practice, within the contemporary framework of ecological and agronomic imperatives.


               In conclusion, the inaugural year of experimenting with green manures did not yield an immediate augmentation in crop yield. However, it became evident that additional fertilization was required to fully harness the benefits of green manures. Encouragingly, the data spotlighted a propitious finding—green manures bolstered the disease resistance of wheat, implying enduring advantages for crop health. Furthermore, the adoption of rapeseed and peas as green manure crops, demonstrated a noteworthy reduction in weeding, affording an economical and pragmatic edge for sustainable agricultural practices. Additionally, when amalgamated with chemical fertilizers, the interaction with green manures evinced an augmented production capacity, underscoring the potential for a synergistic strategy in maximizing crop output.


               These revelations highlight the significance of a holistic and integrated approach to agricultural methodologies, underscoring the value of amalgamating green manures with judicious fertilization strategies. As we persist in our exploration and refinement of these techniques, the potential for enhancing both productivity and sustainability in our agricultural systems remains considerable, ultimately contributing to a more resilient and efficient food production process.

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