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	Provedor de dados AGRIAMBI (2) Autor Assis,Igor R. de (2) Cordeiro,Amanda L. (1) Dias,Luiz E. (1) Guimarães,Lorena A. de O. P. (1) Pinto,Francisco A. C. (1) Santos,João F. C. dos (1) Silva,Heider R. F. (1) Mais... Palavra-chave Chrysopogon zizanioides (1) Environmental reclamation (1) Gold mining (1) HSV (1) Image processing (1) RGB (1) Soil color (1) Sulfide substrate (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2016 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Use of digital images to estimate soil moisture AGRIAMBI Santos,João F. C. dos; Silva,Heider R. F.; Pinto,Francisco A. C.; Assis,Igor R. de. ABSTRACT The objective of this study was to analyze the relation between the moisture and the spectral response of the soil to generate prediction models. Samples with different moisture contents were prepared and photographed. The photographs were taken under homogeneous light condition and with previous correction for the white balance of the digital photograph camera. The images were processed for extraction of the median values in the Red, Green and Blue bands of the RGB color space; Hue, Saturation and Value of the HSV color space; and values of the digital numbers of a panchromatic image obtained from the RGB bands. The moisture of the samples was determined with the thermogravimetric method. Regression models were evaluated for each image type: RGB,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil color; Image processing; RGB; HSV. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001201051 Cultivation of vetiver in saline tailings contaminated with arsenic under phosphorus doses AGRIAMBI Guimarães,Lorena A. de O. P.; Dias,Luiz E.; Assis,Igor R. de; Cordeiro,Amanda L.. ABSTRACT The processing of gold ores exploited in Paracatu, MG, generates tailings that are challenging for revegetation, mainly because of the high content of arsenic and salinity. Aiming at the revegetation of the area of disposal of these tailings, the objective of this study was to evaluate the effects of phosphorus doses on vetiver plants (Chrysopogon zizanioides) and on the planting substrate, which consisted of tailings from the processing of ore named B1, exploited in Paracatu, with water restriction. Vetiver was grown for four months in the substrate under doses of 0, 140, 280, 560 and 1280 mg kg-1 of P2O5. Increasing doses of phosphorus improved the chemical characteristics of the substrate. However, the highest dose (1280 mg kg-1 P2O5) resulted... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sulfide substrate; Gold mining; Environmental reclamation; Chrysopogon zizanioides. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001000891 Registros recuperados: 2 Primeira ... 1 ... Última

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