Banca de QUALIFICAÇÃO: UBIRANEI DE FREITAS MARINHO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : UBIRANEI DE FREITAS MARINHO
DATA : 27/03/2023
HORA: 13:30
LOCAL: Sala de vídeo conferência
TÍTULO:

PHOSPHATE FERTILIZATION WITH DIFFERENT SOURCES AND PHOSPHATE SOLUBILIZING BACTERIA (BSP) IN SOYBEAN AND CORN CULTIVATION

PALAVRAS-CHAVES:

Phosphate fertilization, solubilizing bacteria, inoculation.

PÁGINAS: 55
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
SUBÁREA: Ciência do Solo
ESPECIALIDADE: Fertilidade do Solo e Adubação
RESUMO:

The immobilization of phosphorus in the labile and non-labile fraction of the soil, by microorganisms and native plants, reduces the availability of the nutrient for cultivated plants. The inoculation of mineralizing microorganisms can increase the supply of available phosphorus in the soil and the efficiency of phosphate fertilizers. The objective of this study was to evaluate the effects of the application of different sources of phosphorus, associated with the inoculation of phosphate solubilizing bacteria (BSP) on the growth and biomass increments of soybean and corn, on the concentration of P in the soil and in the plant. The sources of P were triple superphosphate, Bayóvar phosphate, calcined bone + poultry litter in the fertilization and inoculation of soybean and corn seeds with Bacillus subiltis (BRM 2084) and Bacillus megaterium (BRM 119). The analysis of the treatments revealed that the inoculation significantly affected the P concentration in the soils fertilized with Bayóvar Phosphate and Calcinated bone + Poultry litter of the soybean culture. In the corn crop, treatments with Bayóvar Phosphate increased the P concentration in the soil. There was difference in soybean growth, effect of addition of PSB with triple superphosphate. That conferred increments to the dry matter of the plants and in the growth attributes of the soybean. In corn, inoculation with PSB increased plant height (AP) and stem diameter (DC) in soils treated with Calcinated bone + Poultry litter. The increase in leaf N and K uptake by plants was observed in the treatment with calcined bone + poultry litter from the inoculated soybean crop. Inoculation of corn seeds with calcined bone and poultry litter promoted plant growth. The application of triple superphosphate associated with inoculation increases the plant's biomass and phosphorus accumulation. The use of Bayóvar Phosphate and Calcined bone + Poultry litter provided the highest concentrations of P in the soil.

The immobilization of phosphorus in the labile and non-labile fraction of the soil, by microorganisms and native plants, reduces the availability of the nutrient for cultivated plants. The inoculation of mineralizing microorganisms can increase the supply of available phosphorus in the soil and the efficiency of phosphate fertilizers. The objective of this study was to evaluate the effects of the application of different sources of phosphorus, associated with the inoculation of phosphate solubilizing bacteria (BSP) on the growth and biomass increments of soybean and corn, on the concentration of P in the soil and in the plant. The sources of P were triple superphosphate, Bayóvar phosphate, calcined bone + poultry litter in the fertilization and inoculation of soybean and corn seeds with Bacillus subiltis (BRM 2084) and Bacillus megaterium (BRM 119). The analysis of the treatments revealed that the inoculation significantly affected the P concentration in the soils fertilized with Bayóvar Phosphate and Calcinated bone + Poultry litter of the soybean culture. In the corn crop, treatments with Bayóvar Phosphate increased the P concentration in the soil. There was difference in soybean growth, effect of addition of PSB with triple superphosphate. That conferred increments to the dry matter of the plants and in the growth attributes of the soybean. In corn, inoculation with PSB increased plant height (AP) and stem diameter (DC) in soils treated with Calcinated bone + Poultry litter. The increase in leaf N and K uptake by plants was observed in the treatment with calcined bone + poultry litter from the inoculated soybean crop. Inoculation of corn seeds with calcined bone and poultry litter promoted plant growth. The application of triple superphosphate associated with inoculation increases the plant's biomass and phosphorus accumulation. The use of Bayóvar Phosphate and Calcined bone + Poultry litter provided the highest concentrations of P in the soil.

MEMBROS DA BANCA:
Interno - 257920003 - GUILHERME FERREIRA FERBONINK
Interno - 210865003 - GUSTAVO CAIONE
Externo à Instituição - CLEITON GREDSON SABIN BENETT - UEG