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Federal
LTAR Phosphorus Budget Summary recent views
Department of Agriculture —
Surface agronomic P budgets for 61 cropping systems using field-scale P flux data across 24 research sites in the United States and Canada. Data are representative of... -
Federal
The Long-Term Agroecosystem Research (LTAR) Network Standard GIS Data Layers, 2020 version recent views
Department of Agriculture —
The USDA Long-Term Agroecosystem Research was established to develop national strategies for sustainable intensification of agricultural production. As part of the...