Banca de DEFESA: JOSE ANTONIO COSTA SILVA
Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.STUDENT : JOSE ANTONIO COSTA SILVA
DATE: 12/07/2023
TIME: 14:00
LOCAL: Sala 04 da Pós-graduação
TITLE:
GROWTH, PRODUCTIVITY AND FINANCIAL INCOME OF IRRIGATED COMMON BEAN
KEY WORDS:
Irrigation depth; crop evapotranspiration; harvest index.
PAGES: 45
BIG AREA: Ciências Agrárias
AREA: Engenharia Agrícola
SUBÁREA: Engenharia de Água e Solo
SPECIALTY: Irrigação e Drenagem
SUMMARY:
The responses of the bean crop to different levels of irrigation is essential to estimate the productivity of this crop in the Coastal Tablelands of Alagoas. Therefore, this research aimed to evaluate the growth, productivity and financial returns of irrigated bean cultivation. The experiment was carried out from 11/17/2015 to 02/01/2016 at the Campus of Engineering and Agricultural Sciences (CEAS) of the Federal University of Alagoas (UFAL). The treatments were six levels of irrigation, depending on the evapotranspiration of the crop - ETC (25%, 50%, 75%, 100%, 125% and 150% of ETc). And, the growth and production variables analyzed were: plant height, dry mass, number of leaves, number of pods per plant, weight of one thousand (1000) grains, leaf area index (LAI), grain yield and harvest index. In this research, the total depth was defined as the total irrigation plus the effective rainfall, the total accumulated rainfall (rain) during the cropping cycle was 291 mm and the highest concentration of rain occurred in January 2016, between 45 to 76 days after planting – DBH (170.43 mm). The maximum LAI value estimated by the 3-parameter normal Pic Log mathematical model, among the irrigation levels, was 7.07, obtained at 41 days, with a coefficient of determination (R2) of 0.91, observed in the irrigation depth of 150% of the ETC, which is the largest blade used (654 mm). The normal Pic Log model of 3 parameter demonstrated that the highest plant height was 61.90 cm, in the irrigation area with ETC 125% (614.48 mm), and the highest plant dry mass estimated by the model was 218, 10 g, on slide at 150% ETC. The highest weight of 1000 grains observed was 215.05 g, at the 100% depth (578 mm). The productivity of maximum financial efficiency (PMFE) of the bean crop, with an average price of R$ 333.19, per 60 kg bag, and the applied millimeter value of R$ 4.74, by the quadratic polynomial model, the the best depth is 582 mm (effective rainfall plus irrigation), which obtains a productivity of 2,100 kg ha-1, respectively with a harvest index of 0.68, in the region of Rio Largo, AL.
BANKING MEMBERS:
Interno(a) - 1790454 - GUILHERME BASTOS LYRA
Presidente - 1206894 - IEDO TEODORO
Externo(a) à Instituição - IVOMBERG DOURADO MAGALHÃES - UFAL