Nitrogen Use Efficiency in an Agrisilviculture System with in the Cerrado Region.

Gliricidia () is a tree legume that has great potential for use in agriculture because of its multiple-use characteristics. However, there is little information in the literature about the effect of agrisilvicultural systems on nitrogen (N) cycling. This study evaluated the effect of densities of gliricidia on N cycling under an agrisilvicultural system.

Direct and residual effect of biochar derived from biosolids on soil phosphorus pools: A four-year field assessment.

Measures to improve the use of phosphorus (P), either by improved efficiency or reuse, are needed worldwide in order to preserve a finite resource and ensure that farmers have access to it. Currently, the rapidly growing global population has generated an increased demand for this mineral. Sustainably disposing for the massive amount of globally produced biosolids and alternative sources of P for agriculture are two major challenges to address.