Volume 33, Number 1, 2009

Considering that Brazil and many other countries with tropical ecosystems need to enhance methods of embankment cover, it is necessary to study the enhancement of available erosion control means. The study objective was to evaluate the efficiency of three commercial erosion mats: MacMat®, Fibrax® and Tela Biotêxtil® in rainfall surface erosion protection. The experiment was carried out between December 2003 and March 2004 on an embankment of a road section in Viçosa, Minas Gerais State, Brazil. Surface runoff from the […]

The available N in sewage sludge-amended soils is one of the restrictive factors for residue application in great amounts. This criterion must be considered in regulations for agricultural use of sewage sludge to avoid environmental pollution of soil and water bodies. The availability of mineral N from native soil organic-N is not considered in the calculation of the maximum rate of sewage sludge application, when these residues are applied for the first time, and this procedure is usual in the […]

Adequate management of nitrogen fertilizer is one of the main difficulties on common bean (Phaseolus vulgaris L.) crop. However, the biological N2 fixation is an alternative source of N supply to this crop. This study had the purpose to evaluate the response of common bean to rhizobium inoculation and split application of N fertilizer in terms of plant nodulation and grain yield. Besides, this study aimed to evaluate the economic viability of using N fertilizer application and/or rhizobium inoculation on […]