Italian ryegrass subjected to doses of nitrogen, phosphorus and potassium in plintossolo Mariana Trindade Barreto, Leticia Romani Simoni, Lucas Biscaglia Miranda, Laura Silva Dunker, Eliana Bordin Dutra, et al. Revista De Ciencias Agroveterinarias, 2025 The objective of this study was to evaluate the combination of nitrogen (N), phosphorus (P), and potassium (K) doses associated with the maximum total dry matter production of Italian ryegrass (Lolium multiflorum Lam). The experiment was conducted in pots in a greenhouse at the Federal University of Pampa, Campus Itaqui – RS, Brazil. A total of 20 treatments were tested, resulting from the combination of four N doses (0, 75, 125, and 175% of the recommended N rate) and five doses of P and K (0, 50, 100, 150, and 200% of the recommended rates). The experimental design was completely randomized in a 4 x 5 factorial arrangement with four replicates. Two, five, six, and five cuts were made referring to doses of N, 0, 75, 125, and 175%, respectively, as the plant reached 20 cm in height to obtain total dry matter (DM) production. Data were subjected to analysis of variance (P < 0.05) using the F test with adjusted regressions. The model with the highest significance level between linear and quadratic regressions was selected. Dry matter production (kg ha-1) exhibited a quadratic response to increasing N doses across all P and K levels, with higher production between levels 75 and 125% of N. The highest yield was obtained with 125% of the recommended N dose combined with 150% of the recommended P and K doses, with a mean DM production of 625 kg ha-1.
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Greenhouse gases measurement time reduction in Portable Accumulation Chambers with grazing sheep evaluated morning and afternoon DPA Rodrigues, IS da Silva, PG Vogel, BF Machado, LB Miranda, ... Small Ruminant Research 240, 107364 , 2024 2024.0 Citations: 2
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Emission factors of nitrous oxide as a greenhouse gas from cattle manure in tropical pasture and supplemented L Miranda, L Quinones, E Kepplin, E Dutra, M Garcez, G Lima, V Santos, ... Archivos Latinoamericanos de Producción Animal 33 (Supl 1), 539-540 , 2025 2025.0
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An overview of the use of near-infrared spectroscopy (NIRS) in assessing silage composition SN Pereira, PI Otto, J Navarini, EB Dutra, RHZ Payeras, KP Oliveira, ... REVISTA DELOS 16 (49), 3579-3600 , 2023 2023.0
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