7 results for group: claudete-g-ramos
Understanding the mobility of potential nutrients in rock mining by- products: An opportunity for more sustainable agriculture and mining
Adilson Celimar Dalmora, Claudete Gindri Ramos, Leandro Gomez Plata, Marcondes Lima da Costa, Rubens Muller Kautzmann, Luis Felipe Silva Oliveira
Abstract
The increase in demand for highly soluble fertilizers brings a global sustainability concern. Alternative sources for traditional fertilization are therefore needed. Rock powder use has been proposed as an alternative approach to soil remineralization. However, research on the agricultural potential of minerals and rocks as alternative sources of nutrients is limited to changes in soil chemical attributes or effects on crop yield. In this work, we report an experimental study addressing the ...
Possibilities of using silicate rock powder: An overview
Claudete GindriRamos, James C.Hower, Erika Blanco, Marcos Leandro Silva Oliveira, Suzi Huff Theodoro
Abstract
This study evaluates the on use of crushed rocks (remineralizers) to increase soil fertility levels and which contributed to increase agricultural productivity, recovery of degraded areas, decontamination of water, and carbon sequestration. The use of these geological materials is part of the assumptions of rock technology and, indirectly, facilitates the achievement of sustainable development goals related to soil management, climate change, and the preservation of water resources. Research over the past 50 years on silicate rocks ...
Application of andesite rock as a clean source of fertilizer for eucalyptus crop: Evidence of sustainability
Adilson Celimar Dalmora, Claudete Gindri Ramos, Marcos Leandro Silva Oliveir, Luis Felipe Silva Oliveir, Ivo André Homrich Schneider, Rubens MullerKautzmann
Abstract
Global demineralization of agricultural soils due to unsustainable use of highly soluble fertilizers and intensive exploitation is an issue of increasing concern. Methods of remineralization include the application of volcanic rock by-product, such as vesicular andesite on mineral-deficient fields. The present work analyzed the petrography, mineralogy, and chemistry of volcanic rock by-product (vesicular andesite rock), as well as on-field experiment with eucalyptus. The petrogra...
Evaluation of Soil Re-mineralizer from By-Product of Volcanic Rock Mining: Experimental Proof Using Black Oats and Maize Crops
Claudete Gindri Ramos, Diego dos Santos de Medeiros, Leandro Gomez, Luis Felipe Silva Oliveira, Ivo André Homrich Schneider, Rubens Muller Kautzmann
Abstract
This study was focused on physical, petrographical, mineralogical, and chemical characterization of a volcanic-rock mining by-product (dacite rock), as well as on greenhouse experiment with black oats and maize crops to evaluate the potential use of the by-product as soil re-mineralizer. The by-product sample was obtained from a quarry in the Nova Prata mining district in southern Brazil. The particle size distribution of the by-product and soil was determined by sieving. Dacite rock ...
Evaluation of the potential of volcanic rock waste from southern Brazil as a natural soil fertilizer
Claudete Gindri Ramos, Xavier Querol, Adilson Celimar Dalmora, Karen Cristinade Jesus Pires, Ivo André Homrich Schneider, Luis Felipe Silva Oliveir, Rubens Muller Kautzmann
Abstract
This study was developed to evaluate the chemical and mineralogical properties of acid volcanic rock waste from mining activities by measuring the availability of macronutrients and micronutrients in Milli-Q water, and in acidic solutions to evaluate the potential use of this type of waste as natural soil fertilizers. The sample used in this work was obtained from a company of the mining district of Nova Prata, Rio Grande do Sul State, southern Brazil. Petrographic ...
Release kinetics of multi-nutrients from volcanic rock mining by-products: Evidences for their use as a soil remineralizer
Leandro Gomez Plata, Claudete Gindri Ramos, Marcos Leandro Silva Oliveira, Luis Felipe Silva Oliveira
Abstract
Great quantities of stone by-products are stored alongside different exploiting mines in south Brazil, which are becoming an unsustainable environmental issue. Powder materials of andesite and dacite rocks were obtained from two mining companies of Southern Brazil. The particle size classification of the materials was determined by sieving. The X-ray diffraction (XRD) technique was used to identify the mineral phases of the by-products and X-ray fluorescence (XRF) was applied to determine their chemical compositions. The concentrations ...
A preliminary evaluation of volcanic rock powder for application in agriculture as soil a remineralizer
Claudete G Ramos, Xavier Querol, Marcos L S Oliveira, Karen Pires, Rubens M Kautzmann, Luis F S Oliveira
Abstract
Mineralogical and geochemical characteristics of volcanic rock residue, from a crushing plant in the Nova Prata Mining District, State of Rio Grande do Sul (RS), Brazil, in this work named rock powder, were investigated in view of its potential application as soil ammendment in agriculture. Abaut 52,400 m3 of mining waste is generated annually in the city of Nova Prata without a proper disposal. The nutrients potentially available to plants were evaluated through leaching laboratory tests.
Nutrient leaching tests were performed ...
