Banca de DEFESA: PASCOAL PEREIRA RODRIGUES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : PASCOAL PEREIRA RODRIGUES
DATE: 28/02/2023
TIME: 08:30
LOCAL: Defesa com apresentação via googlemeet
TITLE:

Evaluation of Lime Form Interference in the Development and Biological Nitrogen Fixation of Soybean Cultivars [glycine max (l.) merr.] in North Fluminense.

KEY WORDS:

Fixação Biológica de Nitrogênio. Calagem. Bactérias. Glycine max (L.).

PAGES: 70
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Ciência do Solo
SPECIALTY: Fertilidade do Solo e Adubação
SUMMARY:

The objective of this work was to evaluate the interference of the form of liming (superficial and
incorporated into the soil) on biological nitrogen fixation and cultivar development
of soybeans, in the north of Rio de Janeiro. The experiment was conducted in the 2021/2022 harvest in an area of
Abadia farm located in the municipality of Campos dos Goytacazes, State of Rio de
January. The soybean crop [Glycine max (L.) Merr.] stands out for its high content of
protein in grains (40%), important for human and animal nutrition. And Brazil if
stands out on the world stage as a soybean producer. With the decline of sugar cane in
northern region of the state of Rio de Janeiro, there is an opportunity to explore
of soy cultivation, which can contribute to the generation of jobs and income in the region. Strains
efficient bacteria of the genus Bradyrhizobium contribute to biological fixation rates
of nitrogen for soy, greater than 80%. And the practice of coinoculation with Azospirillum
promotes an increase in productivity for the crop. Already, the correction of soil acidity
through liming is an important agricultural practice for the development and production of
Soy. High acidity is a limiting factor for plant development. The area of
experiment was divided into two plots, with dimensions of approximately 70 x 70 m. THE
first plot was harrowed to a depth of about 20 cm for turning over the
soil, followed by the application of 1 ton of dolomitic limestone + 0.5 t ha -1 of gypsum,
and a new harrowing at the same depth. Subsequently, Brachiaria was sown
ruziziensis and a light harrowing was carried out to incorporate the seeds. In the second
plot, the same amount of limestone and gypsum was applied without disturbing the soil. Soon
afterwards, Brachiaria ruziziensis was desiccated and soybeans were planted directly in both areas.
The transgenic soybean cultivars were tested in relation to the form of liming. Results
indicate that the incorporation of limestone into the soil is more efficient in controlling acidity, raising
pH, increase N accumulation in shoots, increase productivity and improve other
attributes compared to surface liming.

COMMITTEE MEMBERS:
Externa à Instituição - CLÁUDIA POZZI JANTALIA - EMBRAPA
Interno - 2213075 - EVERALDO ZONTA
Presidente - ***.881.579-** - JERRI ÉDSON ZILLI - EMBRAPA
Externo ao Programa - 387256 - JORGE JACOB NETO - UFRRJ