Agricultura Tropical

URI Permanente desta comunidade

http://repositorio.ufes.br/handle/10/17346
Programa de Pós-Graduação em Agricultura Tropical

Centro: CEUNES
Telefone: (27) 3312 1701
URL do programa: http://agriculturatropical.ufes.br

Navegar

Navegando Agricultura Tropical por Autor "Amaral, José Francisco Teixeira do"

Agora exibindo 1 - 3 de 3
  • Nenhuma Miniatura disponível
    Item
    Biofertilizantes na produção de alface
    (Universidade Federal do Espírito Santo, 2013-02-28) Sampaio, Biágio Sartori; Gontijo, Ivoney; Schmildt, Edilson Romais; Fernandes, Adriano Alves; Amaral, José Francisco Teixeira do
    Among the leafy lettuce stands out among the most commonly consumed by Brazilians, so no need to seek alternatives to produce it using more sustainable technologies. Many producers who grow lettuce in organic systems already use biofertilizers with satisfactory results. However, for confirmation and understanding of its effects needs further deepening scientific. The objective of this research was to evaluate the effect of different types of biofertilizers on yield and nutrition of lettuce Baba de Verão in organic production system. The experiment was conducted under field conditions in Havana farm, Montanha city, Espírito Santo. Were implanted 02 experiments: the first, a randomized block with four replications, testing six concentrations of biofertilizer cow urine diluted in water (0, 5, 10, 15, 20 and 25%), according to experimental testing, conducted in a 2x5 factorial arrangement were tested soil inoculation with Efficient Microorganisms (EM) and different biofertilizers foliar applied. Upon reaching the commercial harvest, evaluated the diameter of the shoot (DPA), number of leaves per plant (NF), the fresh matter (MFPA), fresh and dry matter of leaves (MFF and MSF) and nutrient concentration in the leaves. In experiment 01, the levels of cow urine and significant quadratic effect for the characteristics of the shoot diameter, number of leaves per plant, fresh weight of shoot fresh and dry weights of leaves and leaf N content. The nutrient content were within the range considered adequate for lettuce, with the exception of the elements P, Ca, S, Fe and Cu. It is recommended that the concentration of 11.36% of biofertilizer cow urine to an estimated maximum yield per plant in 218.05 g of commercial lettuce, corresponding to yield of 34.9 t. ha-1. Already in experiment 02, the highest average for FMAP, 175.92 g. per plant, which corresponds to an estimated yield of 28.14 t. ha-1. Regarding nutritional status, there was no positive effect of applying biofertilizers for the K and Ca compared to standard, however the levels of Cu were better in the interaction between standard and soil inoculation.
  • Nenhuma Miniatura disponível
    Item
    Cultivo hidropônico de alface e rúcula com diferentes concentrações de ferro visando a biofortificação
    (Universidade Federal do Espírito Santo, 2015-07-30) Laurett, Luciene; Schmildt, Edilson Romais; Falqueto, Antelmo Ralph; Fernandes, Adriano Alves; Caliman, Fabiano Ricardo Brunele; Vitória, Edney Leandro da; Amaral, José Francisco Teixeira do
    Lettuce and arugula are commonly consumed in the form of salad, supplying the body with vitamins and minerals. Iron is one of these important minerals for human health and its deficiency causes anemia. Anemia due to iron deficiency is on a nutritional deficiency of great magnitude, considered a public health problem both in developing countries as in developed countries. The objective of the research was to determine biofortification with iron and the effect on the biometric and physiological characteristics of lettuce and arugula in hydroponic cultures. Two experiments, one for each culture were installed. The experimental design was a randomized block, with five treatments and six replications. The treatments consisted of increasing concentrations of Fe 45 (control), 90; 135; 180; 225 μmol.L-1 . At 27 and 30 days after transplanting to rocket and lettuce, respectively, the shoot fresh weight, number of leaves, leaf area, root fresh weight, root volume, shoot dry matter, root dry matter, nutrient concentration, chlorophyll content and fluorescence were evaluated. The production of the shoot fresh matter of lettuce and arugula decreased significantly with increasing iron concentration, decreases were observed in 97,63 and 68,18%, respectively. The Fe content in tissues was significant only for the arugula root system, but it was observed a greater increase of the iron concentration in the root system of both cultures compared to the shoot concentration. For the arugula root system was observed 68,22 times increase in Fe content compared to the shoot concentration. The lettuce chlorophyll a content was significant difference in the highest concentration of iron. The analysis of fluorescence of chlorophyll a held to 14 and 27 DAT in lettuce and arugula, respectively, showed no significant difference between treatments. The chlorophyll a index, chlorophyll b and total chlorophyll content in arugula, showed no significant difference. For lettuce production Vitoria de Santo Antao and Rococo arugula hydroponically recommends the use of the concentration of 45 μmol.L-1 of Fe.
  • Nenhuma Miniatura disponível
    Item
    Subprodutos da indústria de celulose como corretivos de acidez do solo e fonte de nutrientes na rúcula (eruca sativa mill.)
    (Universidade Federal do Espírito Santo, 2015-07-31) Daudt, Géssica Ferreira; Gontijo, Ivoney; Schmildt, Edilson Romais; Fernandes, Adriano Alves; Amaral, José Francisco Teixeira do; Caliman, Fabiano Ricardo Brunele; Vitória, Edney Leandro da
    Worldwide, Brazil is the fourth largest producer of cellulose. In the industrial processing of cellulose, there remains, which are not incorporated into the final product, termed waste. The waste from the cellulose and paper industry have shown up as a good nutrient source option and corrective ground by presenting low cost and potential for improvement when incorporated into the soil. The objective of the present work evaluate the changes in soil chemical properties, in two soils with different textural classes, corrected with the use of alkaline by-products of the cellulose and paper industry in the cultivation of arugula. The study was conducted at the experimental farm of the Federal University of Espirito Santo in the city of São Mateus-ES. The studied materials were extracted residues of cellulose and paper: with seven gray levels of calcium magnesium - CCM (Biomass ash; Dregs & Grits; mud Cal and Magnesita) and seven levels of Humuativo. Doses of CCM and Humuativo were combined according to the matrix model Box Berard increased 3 (2k + 2K + 2k + 1) constituting 13 treatments over a course of dolomitic limestone, arranged in a completely randomized design (CRD), with three replications. The central point of the matrix (0,0) taken as the standard dose, and referring to 100% of lime requirement for MCC and 25 t ha-1 for Humuativo. The application of the by-products increased pH, exchangeable Ca, Mg, P and V in both evaluated soils and reducing the contents of Al and H + Al. The use of by-products increases the levels of Na + in soil up to 15 times xi the initial value. The waste had studied in their Cu and Ni composition in toxic amounts to plants, preventing their use to address safety in consumption of arugula. The arugula plants had gained momentum when grown in oxisoil. The fresh and dry weight of part of the roots were higher when grown in Ultisol media texture. So much for the Oxisol as to Udult is not recommended dose below 1.34 t ha -1 CCM product.