Banca de DEFESA: ALESSANDRO BANDEIRA DALBIANCO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ALESSANDRO BANDEIRA DALBIANCO
DATA : 16/12/2020
HORA: 08:00
LOCAL: Web Conferência - Google Meet
TÍTULO:

TOMATO YIELD AND ECONOMIC ANALYSIS OF CULTIVATED UNDER  UNDER DIFFERENT SOIL COVERINGS

PALAVRAS-CHAVES:

Solanum lycopersicum L.; Mulching; Vegetal cover; Soil management; Profitability.

PÁGINAS: 90
GRANDE ÁREA: Outra
ÁREA: Multidisciplinar
RESUMO:

Soil cover is an agricultural practice that can offer several benefits to plants and soil, as it promotes the control of weeds, reduces water losses through evaporation, facilitates the harvest and commercialization of fruits, the product is harvested cleaner, with better quality and important in the improvement of the physical, chemical and biological conditions of the soil, where this practice is very important in the cultivation of flat tomatoes destined for the fresh market. Therefore, the objective of this work was to carry out productive and economic analyzes on tomato cultivars of determined growth, in different soil coverings, evaluating the effect of soil temperature and humidity, the production cost and the physical, chemical and biochemical quality of tomato fruits, aiming at the fresh market. The experiment was carried out in the field in a randomized block design under a factorial scheme with two determined tomato cultivars (Fascínio and Thaíse) and five soil cover managements (Soil without cover, plastic mulching, Sorghum, Capim Sudan and Milheto) with four replications. . The drip irrigation system was used, through which fertigation was also carried out. Production evaluations were carried out regarding soil cover management, physical, chemical, biochemical aspects of tomato productivity and production cost. Soil temperature and humidity were also evaluated throughout the cycle and at the end of total tomato production. As a result, considering biomass production, Millet was the one that produced the most, with a value of 9.10 t ha-1, followed by Sorghum, Sudan and spontaneous vegetation. As for the decomposition rate, Milheto and Capim Sudão had the lowest rates and, consequently, the longest half-lives. Total and commercial yields were influenced in isolation by soil cover and non-commercial yield by cultivars and soil cover. Covering with plastic mulching provided the highest total and commercial productivity with 110.50 and 74.44 t ha^-1 respectively, and the other treatments did not differ. The management of soil cover influences the production and quality of tomato fruits, and the cultivar Fascínio tends to have a higher concentration of lycopene and β-carotene. The cultivar Thaíse showed greater thickness of the fruit wall in the treatments without cover and sorghum, with no difference between cultivars for the other coverings. The cultivar Fascínio presented the greatest thickness (13.98 mm) compared to the cultivar Thaíse (11.95 mm). Covering with plastic mulching provided the highest soil temperature in relation to treatments without cover, Sudan grass, sorghum and millet. The treatment without soil cover has the lowest thermal amplitude of the soil for the depths of 0.05, 0.10, 0.20 and 0.30 m. Tomato cultivation showed a high potential for economic expression for the study region, especially when using plastic mulching, where it presented a higher operating profit of R $ 138,875.76, followed by treatments with Sorghum (R $ 123,712.05), millet (R $ 117,825.25), without coverage (R $ 110,532.95) and Sudan grass (R $ 99,654.02), with the costs of manual operations (19.61%), tomato seed (9%) , fertilization (13.27%), plastic mulching (7.17%) and irrigation (19.80%) the highest expenses observed in their production in relation to the total operating cost (TOC).

MEMBROS DA BANCA:
Externo à Instituição - CRISTINE VANZ BORGES - UNESP
Interno - 131916001 - RIVANILDO DALLACORT
Presidente - 117161002 - SANTINO SEABRA JUNIOR
Interno - 029.533.101-18 - WILLIAM FENNER - UFMT