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APLE : Annual Phosphorus Loss Estimator Tool

    APLE is a Microsoft Excel spreadsheet model that runs on an annual time-step and estimates field-scale, sediment bound and dissolved P loss (kg ha−1) in surface runoff for agricultural field. APLE is intended to quantify P loss through process-based equations. It has been tested for its ability to reliably predict P loss in runoff for systems with machine-applied manure and for soil P cycling using data from a wide variety of agricultural fields and regions.

    Agricultural Model Intercomparison and Improvement Project (AgMIP) Tools

      Agricultural Model Intercomparison and Improvement Project (AgMIP) datasets are stored in the harmonized AgMIP Crop Experiment (ACE) format. Translation tools available for download at [http://tools.agmip.org/](http://tools.agmip.org/) allow re-formatting of the data to model-specific formats for various crop simulation models.

      Agricultural Model Intercomparison and Improvement Project (AgMIP) Datasets

        Site-based crop modeling data from field experiments, farm surveys, and yield trials. These data are in AgMIP harmonized format, ready for translation to multiple crop model formats using the data translation tools at [http://tools.agmip.org/](http://tools.agmip.org/). Details on AgMIP can be found at [http://www.agmip.org/](http://www.agmip.org/).

        Cover Crop Chart (version 2.0): Helping producers choose cover crops in crop and forage production systems

          The Cover Crop Chart (v. 2.0) is designed to assist producers with decisions on the use of cover crops in crop and forage production systems. The chart, patterned after the periodic table of elements, includes information on 58 crop species that may be planted individually or in cocktail mixtures. Information on growth cycle, relative water use, plant architecture, seeding depth, forage quality, pollination characteristics, and nutrient cycling are included for most crop species.