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

Metadata Updated: November 19, 2019

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

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Metadata Created Date February 4, 2018
Metadata Updated Date November 19, 2019

Metadata Source

Harvested from USDA JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date February 4, 2018
Metadata Updated Date November 19, 2019
Publisher USDA NAL
Unique Identifier ef8b8887-f453-4609-9d2c-f62ed944560d
Heilman, Philip
Maintainer Email
Public Access Level public
Bureau Code 005:18
Metadata Context
Schema Version
Catalog Describedby
Harvest Object Id debf5ac7-a62c-4e4c-8987-bfbb30163fe8
Harvest Source Id 50ca39af-9ddb-466d-8cf3-84d67a204346
Harvest Source Title USDA JSON
Data Last Modified 2019-08-05
Program Code 005:040
Source Datajson Identifier True
Source Hash e4783b2610fb07c47c7acf1ffcbf9414c4fb1559
Source Schema Version 1.1
Spatial POINT (-92.569856 42.936215)

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