Morphogenesis of native grasses of Pampa Biome under nitrogen fertilization
Machado, Juliana Medianeira, Rocha, Marta Gomes da, Quadros, Fernando Luiz Ferreira de, Confortin, Anna Carolina Cerato, Santos, Aline Bosak dos, Sichonany, Maria José de Oliveira, Ribeiro, Laila Arruda, Rosa, Aline Tatiane Nunes da
R. Bras. Zootec.
DATA DE PUBLICAÇÃO
Morphogenetic and structural characteristics of the native grasses of the Pampa Biome Andropogon lateralis, Aristida laevis, Axonopus affinis, Erianthus angustifolius, Paspalum notatum, Paspalum plicatulum, Piptochaetium montevidense and Sorghastrum pellitum were evaluated as to the effect of nitrogen (N) fertilization (zero and 100 kg N/ha). The experimental design was of randomized blocks with three replicates in a 8 × 2 (native grasses × N) factorial arrangement. Accumulated thermal sums of 350 and 700 degree days determined the interval between cuts for prostrate and caespitose growth habit species, respectively. Species considered of resource conservation (A. laevis, E. angustifolius, P. plicatulum and S. pellitum) had the highest leaf elongation rate when they received N. For leaf appearance rate, phyllochron, leaf senescence rate, leaf lifespan, number of green leaves and final length of leaf blades, there was difference between the evaluated species.
- MORPHOGENESIS OF NATIVE GRASSES UNDER LEVELS OF NITROGEN
- Forage productivity and morphogenesis of Axonopus aureus under different nitrogen fertilization rates
- Replacement of native vegetation alters the soil microbial structure in the Pampa biome
- Tillering dynamics of Alexandergrass pasture under nitrogen fertilization
- Nitrogen fertilization strategies for xaraes and tifton 85 grasses irrigated in the dry season