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LTAR Phosphorus Budget Summary
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 P inputs... -
The Long-Term Agroecosystem Research (LTAR) Network Standard GIS Data Layers,...
The USDA Long-Term Agroecosystem Research was established to develop national strategies for sustainable intensification of agricultural production. As part of the Agricultural...