The application to agriculture of predictive plant production models based on regional experimental data.- Primary productivity of natural grass ecosystems of the tropics: A reappraisal.- A reassessment of shoot/root and root/ organic matter interactions.- Why and how to estimate the cost of symbiotic N2 fixation? A progressive approach based on the use of 14C and 15N isotopes.- Plant- and soil-related controls of the flow of carbon from roots through the soil microbial biomass.- Carbon and nitrogen dynamics along the decay continuum: Plant litter to soil organic matter.- Nitrogen cycling in farming systems derived from savanna: Perspectives and challenges.- Influences of elemental interactions and pedogenic processes in organic matter dynamics.- Modelling land use effects of soil organic matter dynamics in the North American Great Plains.- Simulating regional patterns of soil C, N, and P dynamics in the U.S. central grasslands region.- Management of earthworm populations in agro- ecosystems: A possible way to maintain soil quality?.- Impact of human activities on nematode communities in terrestrial ecosystems.- Cycling of nutrients from dying roots to living plants, including the role of mycorrhizas.- Mycorrhizal mycelia and their role in soil and plant communities.- Activity of nitrifiers in relation to nitrogen nutrition of plants in natural ecosystems.- Nitrogen availability and nitrification during succession: Primary, secondary, and old-field seres.- The influence of invertebrates on soil fertility and plant growth in temperate grasslands.- Role of soil animals in C and N mineralisation.- Inferring trophic transfers from pulse-dynamics in detrital food webs.- Can population and process ecology be combined to understand nutrient cycling?.- Perspectives onmeasurement of denitrification in the field including recommended protocols for acetylene based methods.- Impact of agricultural landscape structure on cycling of inorganic nutrients.- The movement of nutrients across heterogeneous landscapes.- Development, validation and applications of simulation models for agroecosystems: Problems and perspectives.- Statistical opportunities for analyzing spatial and temporal heterogeneity of field soils.- Models by decision makers and ecologists, can they be coupled?.- The use of nitrogen fertiliser in agriculture. Where do we go practically and ecologically?.
