Banca de QUALIFICAÇÃO: JOSIANE SIQUEIRA NUNES MOUZINHO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : JOSIANE SIQUEIRA NUNES MOUZINHO
DATA : 08/02/2024
HORA: 08:00
LOCAL: Atividade on line
TÍTULO:

“Bordão de velho” trees (Samanea tubulosa) improve soil fertility and pasture avaliability in the Amazon region. 

PALAVRAS-CHAVES:

Sustainability; Samanea tubulosa; rotational management; soil fertility.

PÁGINAS: 76
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
SUBÁREA: Ciência do Solo
ESPECIALIDADE: Fertilidade do Solo e Adubação
RESUMO:

Conscientious management of natural resources in livestock farming, especially in pasture-based production systems, is crucial to ensuring environmental sustainability and economic efficiency. Faced with the common challenge of pasture degradation, it is essential to adopt sustainable practices to preserve the quality of the soil and vegetation. One promising approach is the silvopastoral system, which integrates livestock production with the cultivation of fodder and trees, such as Samanea tubulosa. Based on other research already carried out and the common use of this species in pastures in the northern region of Mato Grosso, this study aimed to analyze the impact of the presence of S. tubulosa on the availability and quality of forage, as well as soil fertility on three properties with different levels of pasture management intensity. Over the course of twelve months, data was collected using exclusion cages to measure pasture availability and bromatological analysis to assess crude protein (CP), lignin (Lignin), acid detergent fiber (ADF), neutral detergent fiber (NDF) and mineral matter (MM) content, as well as physical and chemical analysis of the soil. In general, the presence of S. tubulosa led to better soil conditions and pasture availability and quality, increasing the levels of CP and MM, increasing the availability of CP per hectare, increasing the levels of macronutrients, pH, cation exchange capacity, organic matter and sum of basis. The results were observed especially in the area under the canopy and grazing management considered to be of medium intensity. The results indicate the potential of this species to be better used in grazing areas as well as the limits of the benefits observed, reinforcing the importance of combining a good silvicultural arrangement in the system and good grazing management practices

MEMBROS DA BANCA:
Interno - 255123001 - ALEXANDRE DE AZEVEDO OLIVAL
Interno - 210865003 - GUSTAVO CAIONE
Externo à Instituição - RENATA EVANGELISTA DE OLIVEIRA - UFSCAR
Externo à Instituição - SAULO EDUARDO XAVIER FRANCO DE SOUZA - CIFOR/ICRAF