Soil Fertility Matters
A Newsletter on Soil Fertility and Fallow Management in the SEA
This first issue of Soil Fertility Matters is
produced under the project titled Interim Information Support for the Southeast Asia
Regional Network on Soil Fertility and Improved Fallow Management, based at the
University of the Philippines Los Baņos-Foundation, Inc. (UPLB-FI) and funded by the
International Fund for Agricultural Development (IFAD) through the International Center
for Research in Agroforestry (ICRAF).
Acacia farnesiana, an indigenous fallow species in the Philippines.
Fallow is the resting of the soil or field from cultivation for six months or more. In the tropics, fallow areas include secondary forest, abandoned cropland, pasture or degraded wasteland, and the intervening time between cropping periods (Barker 1984).