Banca de DEFESA: MÁRCIO HENRIQUE LEAL LOPES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MÁRCIO HENRIQUE LEAL LOPES
DATE: 31/07/2025
TIME: 14:30
LOCAL: Sala de aula do PPGPA
TITLE:

EVALUATION OF THE RESIDUAL EFFECT OF POULTRY LITTER BIOCHAR ON COMMON BEAN (PHASEOLUS VULGARIS) CULTIVATION IN THE SEMI-ARID REGION OF PERNAMBUCO, BRAZIL

KEY WORDS:

biochar, common bean, water use efficiency, soil moisture

PAGES: 41
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Ciência do Solo
SPECIALTY: Física do Solo
SUMMARY:

The cultivation of common bean in the semi-arid region of Northeast Brazil is essential for sustaining family farming and is considered a subsistence crop. However, bean productivity is affected by edaphoclimatic variations, such as high temperatures, seasonal rainfall, and soils with low nutrient content, especially in semi-arid regions. To overcome these limitations, the use of biochar emerges as a promising alternative to improve soil physicochemical properties and enhance crop productivity. Thus, the objective of this study was to evaluate the residual effect of poultry litter biochar on common bean cultivation and soil physicochemical properties in the semi-arid region of Pernambuco. A randomized block experiment was conducted, assessing the residual effect of different biochar dosages (10, 20, and 40 t ha⁻¹) compared to mineral fertilization, poultry manure (6 t ha⁻¹), and chicken litter (10 t ha⁻¹). The results show that residual dosages improved soil water storage, carbon stock throughout the soil profile, and increased bean productivity. The highest yields were observed in treatments with organic fertilizers (poultry litter and poultry manure). It is concluded that biochar can be a valuable tool for sustainable agriculture in semi-arid regions, especially when combined with organic fertilizers. Its use contributes to improving soil physical and chemical properties and water-use efficiency. However, further studies are needed to adjust dosages to maximize its benefits under different cultivation conditions.

COMMITTEE MEMBERS:
Presidente - 1578994 - JOSE ROMUALDO DE SOUSA LIMA
Interno - 1549250 - ALEXANDRE TAVARES DA ROCHA
Externa à Instituição - RAFAELA FELIX DA FRANÇA