Evaluation of harrowing intensity on surface crusting on an oxisol of the eastern plains of Colombia: I. Chemical and textural characterization in soil surface ; Evaluación del efecto de la intensidad de labranza en la formación de costra superficial de un oxisol de sabana en los Llanos Orientales de Colombia: I. Caracterización química y textural en superficie

A field trial was conducted to evaluate the cumulative effects of fertilization and tilling on corn crop and introduced pasture under no grazing. Changes in soil physical and chemical parameters were evaluated in the first centimeter depth of top soil of field plots that were established in 1995 in Matazul farm located at the east of Puerto Lopez, Meta, Colombia. After eight years of establishment, results showed that corn system significantly improved soil fertility of savanna but soil stabilizer parameters such as organic matter, organic–Fe and fine silt were negatively affected. These effec... Mehr ...