Banca de DEFESA: VANESSA COSTA DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : VANESSA COSTA DA SILVA
DATA : 02/10/2020
HORA: 14:00
LOCAL: Tangará da Serra
TÍTULO:

CULTURAL AND BIOLOGICAL MANAGEMENT FOR STRUCTURING SOIL CULTIVATED WITH COTTON

PALAVRAS-CHAVES:

Soil enzyme activity, resistance induction, biological fertilizer, vegetal cover

PÁGINAS: 86
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
RESUMO:

The objective of the present study was to evaluate the effect of biological fertilizer on the physical, chemical and microbiological attributes of the soil and activation of pathogenesis-related enzymes in cotton culture. The experiment was conducted during two harvests (2017/2018 and 2018/2019), in the experimental area at the State University of Mato Grosso UNEMAT. The chemical characteristics evaluated were phosphorus (P), potassium (K) calcium (Ca), magnesium (Mg), hydrogen (H), aluminum (Al), sulfur (S), organic matter (MO), hydrogen potential (pH), cation exchange capacity (T), total organic carbon (T) and percentage of base saturation (V). The microbiological variables analyzed were carbon from soil microbial biomass (BMS-C) according to the fumigation method - extraction, basal soil respiration (RBS) and soil metabolic quotient (qCO2), microbial quotient (qMIC) and total organic carbon (COT). For the analysis of the physical characteristics of the soil volumetric humidity (Uv), gravimetric humidity (Ug), soil density (Ds), macroporosity (MaP), microporosity (MiP), total porosity (Pt), soil resistance to penetration (RP). Crop yield, seed yield (PRODC) and fiber yield (PRODF) in kg ha^-1 and fiber yield (F). Related to the activation of pathogenic enzymes related to the plant, the enzymes Peroxidase and β 1,3 - glucanases were evaluated, while for the enzymes related to the soil, acid phosphatase and β-glycosidase were evaluated. In order to verify the effect of the use of biological fertilization and cover crops on quality indicators of soil cultivated with cotton, it is necessary to continue studies that view the performance of these factors on the indicators. Also needing a longer evaluation period to obtain knowledge related to the behavior of pathogenic enzymes resulting from the use of biological fertilizer, as well as in the productivity and quality of the cotton fiber, since in two cultivation seasons no direct influence of this management can be observed about them.

MEMBROS DA BANCA:
Presidente - 138379001 - DEJANIA VIEIRA DE ARAUJO
Interno - 131991001 - WILLIAN KRAUSE
Externo à Instituição - ELISANDRA BATISTA ZAMBENEDETTI MAGNANI - UNIVAG