THE INFLUENCE OF CROP ROTATION AND MINERAL FERTILIZATION ON WINTER WHEAT CROP YIELD
2024
Ceclan, Ovidiu Adrian | Sopterean, Laura | POPA, Alin | NEGREA, Adrian
This paper presents the synthesis results obtained for the autumn wheat crop under the influence of mineral fertilization and the preceding plant under the conditions of the Transylvanian plateau during 2018 – 2022. Under different climatic conditions and the preceding plant during five years winter wheat responded differently. The experiments were polyfactorial according to the method of randomized blocks in subdivided plots. Soybeans and corn were the precursors to the winter wheat crop. The mineral fertilization options were fertilizers based on nitrogen (ammonium nitrate) and phosphorus (superphosphate) with 5 graduations each. The doses used were for phosphorus P0P40P80P120P160 both for the winter wheat crop cultivated after soybeans and after corn and those of nitrogen N0N30N60N90N120 for the winter wheat crop cultivated after soybeans and N0N40N80N120N160 for wheat cultivated after corn. Phosphorus fertilizers were applied in autumn under the ploughing and nitrogen fertilizers half of the dose in autumn and half in spring for both cases. The obtained results were analyzed by known statistical methods, the analysis of variance and the influence between factors.
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