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Structural and productive characteristics of Urochloa decumbens (Stapf) R. Webster in monoculture and silvopastoral system

Published online by Cambridge University Press:  27 November 2024

José Lypson Pinto Simões Izidro*
Affiliation:
Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil
Alexandre Carneiro Leão de Mello
Affiliation:
Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil National Council for Scientific and Technological Development – CNPq Scholarship, Recife, Pernambuco, Brazil
Márcio Vieira da Cunha
Affiliation:
Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil National Council for Scientific and Technological Development – CNPq Scholarship, Recife, Pernambuco, Brazil
Valdson José da Silva
Affiliation:
Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil PET/SESU/MEC – PET scholarship, Recife, Pernambuco, Brazil
Mércia Virginia Ferreira dos Santos
Affiliation:
Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil National Council for Scientific and Technological Development – CNPq Scholarship, Recife, Pernambuco, Brazil
Suellen Brandão de Miranda Costa
Affiliation:
State University of Maranhão, Balsas, Maranhão, Brazil
Chrislanne Barreira de Macêdo Carvalho
Affiliation:
Instituto Nacional do Semiárido, Campina Grande, Paraíba, Brazil
Vanilson Pedro da Silva
Affiliation:
Federal University of Agreste of Pernambuco, Garanhuns, Pernambuco, Brazil
Janerson José Coelho
Affiliation:
Regional University of Cariri, Crato, Ceará, Brazil
Diana Valadares Pessoa
Affiliation:
State University of Maranhão, São Luís, Maranhão, Brazil
Pedro Mouzinho de Oliveira Neto
Affiliation:
National Service for Rural Learning, Recife, Pernambuco, Brazil
*
Corresponding author: José Lypson Pinto Simões Izidro; Email: lypsonsi.zootec@gmail.com

Abstract

This study hypothesized that the signal grass (Urochloa decumbens [Stapf] R. Webster) modifies its structural and productive characteristics under a silvopasture system with legume trees. The treatments were composed of (i) signal grass in monoculture and (ii) a silvopasture system intercropping signal grass + Mimosa caesalpiniifolia Benth. a legume tree, over two consecutive years. The experiment was set in a completely randomized block design with three replications. Grazing was carried out by cattle with an average body weight (BW) of 186 ± 26 kg. The type of system had no significant effect on the structural and productive characteristics of signal grass. In the first grazing season, the greatest canopy height (54 cm) and total forage mass (6473 kg DM/ha) occurred in the dry period. The leaf:stem ratio was greater in the rainy season. Forage accumulation (515 kg DM/ha/28 days) and forage accumulation rate (18 kg DM/ha/day) were greater in the rainy season. Higher total forage production (4583 kg DM/ha) occurred in the first grazing season. The silvopasture with double rows spaced 25 m apart and with a tree density of 600 plants/ha did not compromise the structural and productivity characteristics of the signal grass pasture. The legume M. caesalpiniifolia has the potential for use as an arboreal component in silvopasture systems with signal grass.

Information

Type
Integrated Crop-Livestock Systems Research Paper
Copyright
Copyright © The Author(s), 2024. Published by Cambridge University Press

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