Effects of edaphic factors and agricultural practices on phosphorus availability

Conference (2010, February 23)

Rôle des facteurs édaphiques et effet des pratiques agricoles sur la capacité de mobilisation du phosphore dans les sols et les sédiments

Scientific conference (2010, January 21)

Identifying solutions to limit contaminations of vegetables by metallic trace elements in kitchen gardens

Poster (2010, January 12)

Rapport d'activité du Laboratoire d'Encadrement Référentiel de la chaîne Minérale-Sols de l'ASBL REQUASUD - période 01/07/2009 au 30/12/2009

Report (2010)

Pericopsis elata (Harms) van Meeuwen in southeastern Cameroon : ecological and pedological approaches to improve the management of an endangered commercial timber species

in International Forestry Review (2010), 12(5), 111

Evaluation de la contamination de la chaîne trophique par les éléments traces (Cu, Co, Zn, Pb, Cd, U, V et As) dans le bassin de la Lufira supérieure (katanga/RD Congo)

in Tropicultura (2010), 28(4), 246-252

Soil chemical changes following 3-year legume or grass leys in west Africa

in Tropical Grasslands (2010), 44

The influence of 4 tropical grasses (Panicum maximum, Andropogon gayanus broad- (BL) and narrow-leaf (NL) types and Pennisetum purpureum) and 6 legumes (Aeschynomene histrix, Stylosanthes fruticosa ... [more ▼]

The influence of 4 tropical grasses (Panicum maximum, Andropogon gayanus broad- (BL) and narrow-leaf (NL) types and Pennisetum purpureum) and 6 legumes (Aeschynomene histrix, Stylosanthes fruticosa, Centrosema pubescens, Mucuna pruriens var. utilis, Cajanus cajan and Leucaena leucocephala) on fertility of the top soil in the Sudanian region of Benin over 3 years was investigated. The plants were sown without fertiliser, harvested under a cut-and-carry regime and soil changes were compared with those under a natural fallow. Soil samples were collected before the study commenced and at the end of the 3-year study. These were analysed for pH, organic C, N, available P and exchangeable cations (Ca, Mg, K and Na). N, P and K contents of aerial parts were determined to estimate the exports of these elements. For the grasses, root biomass, depth and distribution were also measured. Three years after grasses and legumes were sown, the pH under the grasses (6.6-6.7) was higher than under the legumes (6.2-6.4) and C and N concentrations had declined from the initial levels. Owing to their deep rooting systems, A. gayanus BL and P. maximum, and probably C. cajan and L. leucocephala, appeared able to recycle nutrients from deeper soil layers. While these species could be used for ley pastures in savannah regions of west Africa, maintenance fertiliser applications would be required to prevent nutrient depletion under a cut-and-carry regime. Further studies to test the efficacy of farmyard manure in providing these nutrients seem warranted. [less ▲]

Mapping baseline soil content in pollutants in urbanized and industrialized areas in the Walloon region: development of a sampling methodology for the Pollusol 2 survey (SPAQuE)

Conference (2009, December 02)

Near infrared reflectance spectroscopy for estimating soil characteristics useful in the diagnosis of soil fertility

in Proceedings of the 14th International Conference on NIR Spectroscopy (2009, November)

Délivrables9, 13, 14 : méthodologies proposées par l'UCL-FSAGx dans le cadre des volets 1 et 3 de la convention

Report (2009)