Results: 23

Attributes of pedoindicator soils in areas cultivated with typical crops in the Western Amazon, Brazil

Biosci. j. (Online); 36 (Supplement1), 2020
The crop systems adopted in the Amazônia region have been studied several times in terms of the variability and to indicate the soil attributes more sensitive to the different crops. Thus, the objective of this work was to apply multivariate techniques in order to identify the chemical attributes most s...

The stability of aggregates and organic carbon content after the application of gypsum, soil scarification and a succession of agricultural crops

Biosci. j. (Online); 36 (3), 2020
Studies related to the monitoring of soil quality by physical attributes are important for the evaluation and maintenance of the sustainability of agricultural systems, besides indicating the appropriate management of the environment, aiming at its conservation and productivity. The objective of this stu...

Soil organic matter fractions and carbon management index under integrated crop-livestock system

Biosci. j. (Online); 36 (3), 2020
The objective of this work was to evaluate the carbon content of the physical, chemical and oxidizable fractions of soil organic matter (SOM) and to calculate the carbon management index (CMI) in an area managed under an integrated crop-livestock system (ICLS) in the western region of Paraná - Brazil. T...

Selection of Indicators to Discriminate Soil Tillage Systems and to Assess Soil Quality in a Red Latosol

Braz. arch. biol. technol; 63 (spe), 2020
Abstract The soil tillage practiced over a long period of time impacts soil quality. The first step in soil quality assessment is to select which indicators should be used. The objective of this study was to identify the soil attributes that discriminate soil tillage systems and can be used as indicators...

Correlation between nutrient content and productivity in irrigated forages

Biosci. j. (Online); 35 (3), 2019
Irregular rainfall can restrict crop development, so irrigation of pastures serves as a strategy to intensify grass-fed animal production systems. Due to the direct relationship between the availability of soil water and nutrients, the objective was to evaluate the nutrient content...

Influence of organomineral fertilization in the development of the potato crop CV. Cupid

Biosci. j. (Online); 35 (1), 2019
The potato crop is very demanding regarding the presence of nutrients in the form readily available in soil solution and the climatic conditions to ensure satisfactory production of tubers. Each potato cultivar has specific characteristics for its development. The object...

Establecimiento y evaluación de dos métodos de pre tratamiento de muestras de suelo para la extracción de ADN para el estudio de la diversidad bacteriana

Con-ciencia (La Paz); 5 (1), 2017
La necesidad de ampliar los conocimientos respecto a los mecanismos bioquímicos y fisiológicos desarrollados por los microorganismos presentes en suelos requiere de una descripción completa de la diversidad microbiana, para lo cual en las últimas décadas se han desarrollado diferentes técnicas mole...

Aplicación del índice de calidad de suelos en plantaciones forestales de palo blanco (Tabebuia donnell-smithii Rose) y Matilisguate (Tabebuia rosea Bertol) en Guatemala
Application of the soil quality index in forest plantations of palo blanco (Tabebuia donnell-smithii Rose) y Matilisguate (Tabebuia rosea Bertol) in Guatemala

Cienc. tecnol. salud; 3 (1), 2016
El desarrollo forestal y el manejo sostenible de los ecosistemas forestales se fundamentan en la forestación,propiciada por la Ley de Fomento al Establecimiento, Recuperación, Restauración, Producción y Protección deBosques en Guatemala, Probosques. Por lo que reviste importancia el conocimiento de ...

El impacto de la hidroquinona usada como un modelo de efector redox sobre la desnitrificación potencial, la actividad microbiana y las condiciones redox de un suelo cultivable

Rev. argent. microbiol; 47 (3), 2015
In this microcosm study, we analyzed the effect produced by hydroquinone on the expression of soil biological denitrification, in relation to the redox state of the soil, both in terms of intensity factor (Eh′) and capacity factor (amount of oxidized or reduced compounds). The supplementation of an...

Atributos físicos e matéria orgânica de áreas de latossolo utilizadas para atividade pecuária no bioma cerrado

Biosci. j. (Online); 28 (4), 2012
A região do Triângulo Mineiro está inserida no bioma Cerrado, tendo aproximadamente 67 % da sua área sob Latossolos Vermelhos, que apresentam baixa fertilidade natural e elevados teores de alumínio trocável, exigindo correções e adubações para a inserção destes no processo produtivo. Os atrib...