APLE : Annual Phosphorus Loss Estimator Tool

Metadata Updated: December 2, 2025

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.

Resources in this dataset:

Resource Title: Annual P Loss Estimator (APLE).

File Name: APLE 2.5.2.xlsx
Resource Description: APLE is a fairly simple, user-friendly, 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. To download the spreadsheet, fill out the form at https://www.ars.usda.gov/research/software/download/?softwareid=304

Resource Title: Annual Phosphorus Loss Estimator User’s Manual Version 2.4.

File Name: APLEUsersManual24.pdf

Access & Use Information

Public: This dataset is intended for public access and use. License: us-pd

Downloads & Resources

Dates

Metadata Created Date	March 30, 2024
Metadata Updated Date	December 2, 2025
Data Update Frequency	irregular

Metadata Source

Data.json Data.json Metadata
Download Metadata

Harvested from USDA JSON

Additional Metadata

Resource Type	Dataset
Metadata Created Date	March 30, 2024
Metadata Updated Date	December 2, 2025
Publisher	Agricultural Research Service
Maintainer	Vadas, Peter
Identifier	10.15482/USDA.ADC/1311626
Data Last Modified	2025-11-22
Public Access Level	public
Data Update Frequency	irregular
Bureau Code	005:18
Metadata Context	https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version	https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby	https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id	8573fcc5-17a3-4a49-b807-1ef5f09a8350
Harvest Source Id	d3fafa34-0cb9-48f1-ab1d-5b5fdc783806
Harvest Source Title	USDA JSON
License	https://www.usa.gov/publicdomain/label/1.0/
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Program Code	005:040
Source Datajson Identifier	True
Source Hash	8c351010c7cdb3bfcaa4e91cbec5c208fd22b5331738c0f02b39d1ed21fe64f0
Source Schema Version	1.1
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Temporal	2013-01-01/2017-12-31

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