Results 1 to 10 of about 1,972 (183)

Nanosilica modulates C:N:P stoichiometry attenuating phosphorus toxicity more than deficiency in Megathyrsus maximus cultivated in an Oxisol and Entisol [PDF]

Scientific Reports, 2023
Silicon (Si) nanoparticles can attenuate nutritional disorders caused by phosphorus in forages through nutritional homeostasis. This paper aims to evaluate the effects of P deficiency and toxicity in Megathyrsus maximus cultivated in two types of soils ...
Cíntia Cármen de Faria Melo, Danilo Silva Amaral, Renato de Mello Prado, Anderson de Moura Zanine, Daniele de Jesus Ferreira, Marisa de Cássia Piccolo   +5 more
doaj   +2 more sources

A New Approach to UV Protection by Direct Surface Functionalization of TiO₂ with the Antioxidant Polyphenol Dihydroxyphenyl Benzimidazole Carboxylic Acid [PDF]

Nanomaterials, 2020
Skin cancer is the most common malignant cancer with an incidence of 1 million cases/year. It is well known that exposure to UV radiation from sunlight leads the most frequent risk factors for several skin disorders including skin cancer.
Mattia Battistin, Valeria Dissette, Alessandro Bonetto, Elisa Durini, Stefano Manfredini, Antonio Marcomini, Elisa Casagrande, Andrea Brunetta, Paola Ziosi, Sonia Molesini, Riccardo Gavioli, Francesco Nicoli, Silvia Vertuani, Anna Baldisserotto   +13 more
doaj   +2 more sources

New approaches to the effects of Si on sugarcane ratoon under irrigation in Quartzipsamments, Eutrophic Red Oxisol, and Dystrophic Red Oxisol. [PDF]

BMC Plant Biol, 2023
Abstract Background C:N:P homeostasis in plants guarantees optimal levels of these nutrients in plant metabolism. H However, one of the causes to the effects of deficit irrigation is the loss of C:N:P homeostasis in leaves and stems that causes reduction in the growth of sugarcane.
Costa MG, de M Prado R, Sarah MMS, Palaretti LF, de C Piccolo M, Souza Júnior JP.   +5 more
europepmc   +4 more sources

GEOCHEMICAL BACKGROUND IN AN OXISOL [PDF]

Engenharia Agrícola, 2017
ABSTRACT Geochemical background establishment is indispensable to determine the actual state of contamination of soils and sediments. However, no scientific consensus exists regarding the methodology for determining these values. In this context, this study aimed to establish the geochemical background in an Oxisol (Rhodic Hapludox) by means of an ...
Cembranel, Adir S., Sampaio, Silvio C., Remor, Marcelo B., Gotardo, Jackeline T., Rosa, Pábolla M. Dalla   +4 more
openaire   +4 more sources

Magnetic susceptibility in the prediction of soil attributes in two sugarcane harvesting management systems [PDF]

Engenharia Agrícola, 2013
This study aimed to investigate the potential use of magnetic susceptibility (MS) as pedotransfer function to predict soil attributes under two sugarcane harvesting management systems. For each area of 1 ha (one with green sugarcane mechanized harvesting
Rafael G. Peluco, José Marques Júnior, Diego S. Siqueira, Lucas A. Cortez, Gener T. Pereira   +4 more
doaj   +1 more source

Evaluación del desempeño productivo y las reacciones metabólicas de ovinos de ceba alimentados con Brachiaria spp, en el trópico bajo de Colombia, al darles suplementos alimenticios

Revista de Investigación Agraria y Ambiental, 2023
Contextualización: los sistemas de producción animal en Colombia se caracterizan por la deficiente disposición y calidad de forrajes, en zonas como el piedemonte llanero, debido a las condiciones edafológicas y climáticas de estas zonas .
María Ligia Roa Vega , Cesar Augusto Navarro Ortiz   +1 more
doaj   +1 more source

Chemical attributes of a remineralized Oxisol [PDF]

Ciência Rural, 2017
ABSTRACT: Remineralizers are comminuted rocks that are applied to soil, and their use as an agricultural amendment was regulated in Brazil in 2013. However, mechanisms of action of these materials must be better known to enable them to be best used in agricultural fields.
Silva, Rafael Cipriano da, Cury, Marina Elias, Ieda, João José Cardinali, Sermarini, Renata Alcarde, Azevedo, Antonio Carlos de   +4 more
openaire   +4 more sources

Copper adsorption in tropical oxisols [PDF]

Brazilian Archives of Biology and Technology, 2003
Cu adsorption, at concentrations between 0 to 800 mg L-1, was evaluated in surface and subsurface samples of three Brazilian soils: a heavy clayey-textured Rhodic Hapludalf (RH), a heavy clayey-textured Anionic ''Rhodic'' Acrudox (RA) and a medium-textured Anionic ''Xanthic'' Acrudox (XA). After adsorption, two consecutive extractions were performed to
Silveira, Maria Lucia Azevedo, Alleoni, Luís Reynaldo Ferracciú   +1 more
openaire   +4 more sources

Comparison of spatial interpolation techniques to predict soil properties in the colombian piedmont eastern plains

Tecnura, 2017
Context: Interpolating soil properties at field-scale in the Colombian piedmont eastern plains is challenging due to: the highly and complex variable nature of some processes; the effects of the soil; the land use; and the management. While interpolation
Mauricio Castro Franco, Dayra Yisel García Ramírez, Andrés Fernando Jiménez López   +2 more
doaj   +1 more source

Terrain forms and spatial variability of soil properties in an area cultivatedwith citrus Formas do relevo e variabilidade espacial de propriedades do solo em área cultivada com citros

Engenharia Agrícola, 2011
The technique of precision agriculture and soil-landscape allows delimiting areas for localized management, allowing a localized application of agricultural inputs and thereby may contribute to preservation of natural resources.
Marisol G. A. de Leão, José Marques Júnior, Zigomar M. de Souza, Diego S. Siqueira, Gener T. Pereira   +4 more
doaj   +1 more source