Banca de DEFESA: EVANDRO FRANCISCO FERREIRA DA SILVA SOUZA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : EVANDRO FRANCISCO FERREIRA DA SILVA SOUZA
DATA : 19/02/2020
HORA: 14:00
LOCAL: Sala de defesa do PGEAAmb
TÍTULO:

Cultivation of cherry tomatoes using non-composted vegetable biomass from batatais-grass and wastewater from dairy cattle

PALAVRAS-CHAVES:

batatais-grass, automated irrigation and wastewater

PÁGINAS: 52
GRANDE ÁREA: Ciências Agrárias
ÁREA: Engenharia Agrícola
SUBÁREA: Engenharia de Água e Solo
ESPECIALIDADE: Irrigação e Drenagem
RESUMO:

 

Vegetable biomass is usually mixed with manure and composted to be used as organic fertilizer. It is also common for the compound obtained to be used in conjunction with mineral fertilizers. In this work, a new alternative was studied, called Verdeponia, characterized by protected cultivation with pots filled with non-composted vegetable biomass as the only fertilizer. The cherry tomato cultivar Perinha Água Branca (PAB) was grown in 8 L pots initially filled with 600 g of batatais-grass (Paspalum notatum) freshly harvested and air dried. In addition to the grass, 750 g of soil was placed in the center of the pot to receive the seedlings. A 1250 g layer of soil was placed on the surface of the pot to keep the grass moist. At 63 days after transplanting (DAT), an additional 300 g of dry grass and a superficial layer of sand per pot were applied. The treatments of the experiment were the control and two types of wastewater from bovine corral, raw and treated, with the objective of increasing the microbial load and the mineralization of vegetable biomass. Irrigation was automatic with a water tension sensor on the substrate, to prevent drought and leaching in the pots. In the trials, fruit production per plant was evaluated each week, from the beginning of the harvest phase to the end of the experiment, counting, weighing, measuring the harvested fruits in terms of average diameters (equatorial and longitudinal) and water use efficiency (WUE). The results were analyzed by means of analysis of variance and the averages compared using the Tukey test at 5% significance. The results show that Verdeponia is viable, since the control and treatment using raw wastewater had an average fruit production of 925,05 g per plant, similar to that reported in the literature for the same cultivar in organic cultivation. The treatment carried out with treated wastewater had an average fruit production of 811,32 g per plant, indicating that the biomass does not need an inoculant to supply nutrients to the tomato. The highest WUE values (8,75 and 8,52 kg m^-3) were found in the control and treatment of raw wastewater, respectively. This technique can then represent time, labor and water savings in organic and sustainable plant cultivation.

MEMBROS DA BANCA:
Presidente - 2353141 - LEONARDO DUARTE BATISTA DA SILVA
Interno - 2181674 - LEONARDO OLIVEIRA MEDICI
Externa ao Programa - 1213072 - MARGARIDA GORETE FERREIRA DO CARMO
Externo à Instituição - CARLOS RODRIGUES PEREIRA - UFF
Externo à Instituição - MARCOS FILGUEIRAS JORGE - FIOCRUZ