Navegando por Autor "Santos, Eliane Rodrigues dos"

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Características estruturais do capim-corrente (Urochloa mosambicensis) submetido a diferentes manejos de corte
(2021-12-06) Santos, Eliane Rodrigues dos; Leite, Mauricio Luiz de Mello Vieira; http://lattes.cnpq.br/4204641633941814; Não localizado
Current grass (Urochloa mosambicensis) is a plant with high foraging potential in the Brazilian Semiarid region, as it has high tolerance, low water availability and grazing near ground level. The aim of this study was to evaluate the productivity of current grass as a function of different cutting managements. The experiment was carried out in the experimental area of the Federal Rural University of Pernambuco, Serra Talhada Academic Unit. The design used was in randomized blocks, with four cutting heights (40, 30, 20 and 10 cm), and four replications. Initially, the current grass pasture area at UFRPE/UAST used for the implementation of the experiment was delimited with dimensions of 8.0 x 10.0 m, 80.0 m². Then, the uniform cutting of the grass was carried out in the entire experimental area. A paddock was inserted every 2.0 m in length and 2.0 m in width to divide each plot. During the experimental period, the monitoring of current grass growth was carried out, evaluating the following structural characteristics: leaf blade length and width, stem length and diameter, plant height, number of: tiller, live leaf, dead leaf, fully expanded living leaf, expanding living leaf, green matter and dry matter weight. After cutting, the plant material was collected and taken to the laboratory to determine the dry mass content of the morphological components. These evaluations were carried out in three consecutive growth cycles of current grass. It was verified for stalk length and tiller number that grass cut at 30 cm had the highest mean, when cut at 20 cm had the highest mean leaf blade length and green matter weight. It was found that the number of expanded leaves was greater when cutting at 10 cm in height, with 7.50 cm. The averages of plant height and number of senescent leaves were higher when the cut was performed at 40 cm. When compared to the other treatments, the stem diameter and leaf blade width were not statistically different regardless of the cutting intensity. During the evaluation period, it was found that the grass cut at 20 cm in height had better forage production averages.