Strategies for the enhancement and exploitation of biological nitrogen fixation are assessed
with attention to the likely timescales for realization of benefits in agriculture. Benefits arising …

Agricultural pollution consists a serious concern for environmental protection managers.
Among the pollutants, nitrates, phosphoric compounds and organic pesticides from …

A fundamental shift has taken place in agricultural research and world food production. In
the past, the principal driving force was to increase the yield potential of food crops and to …

Agroforestry research is being transformed from a collection of largely descriptive studies
into more scientific approaches, based on process-oriented research. The development of …

Asynchrony between nitrogen (N) supply and crop demand is the source of many
environmental hazards associated with excess N in the biosphere. In this review, we explore …

A major tenet of agroforestry, that trees maintain soil fertility, is based primarily on
observations of higher crop yields near trees or where trees were previously grown …

Deforestation in the tropics, and fossil fuel burning in temperate regions contribute to the
largest flux of CO2 to the atmosphere. Therefore, land-use systems that increase the soil …

Agroforestry is an agricultural diversification practice that purposefully grows trees together
with crops and/or animals. Nitrogen (N) plays a pivotal role in the sustainability and …

Agroforestry (AF)-based adaptation to global climate change can consist of (1) reversal of
negative trends in diverse tree cover as generic portfolio risk management strategy;(2) …

The dynamic nature of N cycling dictates that soil N capital useful for supplying N for plant
growth must be equated with short‐to medium‐term, rolling capital (the monthly or annual …