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Effects of pig slurry application on soil physical and chemical properties and glyphosate mobility Rev. Bras. Ciênc. Solo
Oliveira,Daniela Aparecida de; Pinheiro,Adilson; Veiga,Milton da.
Pig slurry applied to soil at different rates may affect soil properties and the mobility of chemical compounds within the soil. The purpose of this study was to evaluate the effects of rates of pig slurry application in agricultural areas on soil physical and chemical properties and on the mobility of glyphosate through the soil profile. The study was carried out in the 12th year of an experiment with pig slurry applied at rates of 0 (control), 50, 100 and 200 m³ ha-1 yr-1 on a Latossolo Vermelho distrófico (Hapludox) soil. In the control, the quantities of P and K removed by harvested grains were replaced in the next crop cycle. Soil physical properties (bulk density, porosity, texture, and saturated hydraulic conductivity) and chemical properties...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil fertilization; Physical and chemical properties; Pollutant transport; Pesticide.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000500007
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Soil physical attributes in forms of sowing the annual winter pasture and intervals between grazing Rev. Ciênc. Agron.
Veiga,Milton da; Balbinot Junior,Alvadi Antonio; Oliveira,Daniela Aparecida de.
The sowing of winter pastures in areas used for summer grain production and their management under direct cattle grazing can cause changes in soil physical attributes, whose intensity depends on the degree of soil mobilization, grazing interval, stocking rate and weather. To study these aspects it was conducted over four years an experiment in a randomized block with split plots design and four replications. In the main plots were applied two forms of sowing the annual winter pasture (direct seeding and seeding + harrowing) and, in the subplots, four intervals between grazing (7, 14 and 28 days and ungrazed). Undisturbed soil cores were sampled at the end of each grazing cycle, in the 0-0.05 m layer to determine the saturated hydraulic conductivity and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crop-livestock integration system; Bulk density; Porosity; Saturated hydraulic conductivity; Aggregate stability.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500005
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