Soil pore distribution changes in no-till and conventionally tilled systems under animal grazing

IGLESIAS JULIO O.; GALANTINI JUAN A.; KRUGER HUGO; VENANZI SANTIAGO

Agriscientia

Universidad Nacional de Cordoba

Lugar: Cordoba; Año: 2014 vol. 31 p. 93 - 102

0327-6244

Different pore sizes affect soil air and water dynamics, thus influencing system productivity. The aim of this study was to evaluate the impact of reduced-tillage (RT) and no-tillage (NT) systems on soil pore distribution under animal grazing. The soil was sampled at 0-5, 5-10, 10-15 and 15-20 cmdepthsbefore and after animal grazing. Bulk density, total porosity and the volume of three pore sizes (macropores, mesopores and micropores) were determined. Differences in total porosity between both tillage systems were statistically significant (P