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Nashua Data Access: An agricultural water quality study in Nashua, Iowa

Metadata Updated: February 4, 2022

The measured and simulated data for corn and soybean yields, tileflow, N concentration, and N loading by plot, year, treatment, rotation, tillage and N application from 36 1-acre plots located on the Northeast Research and Demonstration Farm near Nashua, Iowa are presented. The measured data were analyzed with the Root Zone Water Quality Model (RZWQM) Version 1.0.2000.830 and summarized in 8 papers in a special issue of Geoderma (Volume 140, No. 3, pages 217-322). The economic returns associated with each plot year were budgeted using the EconDocs software, since improved and released as DevTreks.

Access & Use Information

Public: This dataset is intended for public access and use. License: Creative Commons CCZero

Downloads & Resources


Metadata Created Date November 10, 2020
Metadata Updated Date February 4, 2022

Metadata Source

Harvested from USDA JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date November 10, 2020
Metadata Updated Date February 4, 2022
Publisher Agricultural Research Service
Identifier ef8b8887-f453-4609-9d2c-f62ed944560d
Data Last Modified 2019-08-05
Public Access Level public
Bureau Code 005:18
Metadata Context
Schema Version
Catalog Describedby
Harvest Object Id dde612dd-d5de-4dc5-a47a-450fe4ffdc90
Harvest Source Id d3fafa34-0cb9-48f1-ab1d-5b5fdc783806
Harvest Source Title USDA JSON
Old Spatial {"type":"Point","coordinates":-92.569856,42.936215}
Program Code 005:040
Source Datajson Identifier True
Source Hash e43fd68affd2ed9a207fda460bdc28930468fca2
Source Schema Version 1.1
Spatial {"type":"Point","coordinates":-92.569856,42.936215}

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