Estimated Statewide Nitrogen Fertilizer density per culivated acre by major watershed in Minnesota for crop year 2018
This page last updated:
03/18/2022
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Section 1: Overview
Originator:University of Minnesota
Title:
Estimated Statewide Nitrogen Fertilizer density per culivated acre by major watershed in Minnesota for crop year 2018
Abstract:
Nitrogen fertilizer use was estimated for the state on a major watershed (HUC8) basis. The Minnesota Department of Agriculture Nutrient Management Survey was used to determine fertilizer rates on corn. At the time this data layer was created, 2014 was the most recent survey data. These data were aggregated to the county level. When the survey did not report a specific county due to privacy concerns or lack of data, the BMP regional rate was applied to that county. Fertilizer rates for other major crops (Alfalfa/Hay, Barley, Oats, Soybeans, Sugarbeets, Potatoes, Wheat) were determined from other nutrient management surveys as well as NASS data and supplemented with University of Minnesota recommendations when data was not available. A statewide average rate was used on these 7 crops, while corn used county average rates becuase of available data. The 2018 Cropland Data Layer was utilized to determine the spatial extent of major crops, and due to variablilty in CDL accuracies for different crops, these data were scaled to match NASS reports for planted acreages in 2018. That data was normalized using 2018 cultivated acres and a fertilizer density per cultivated acre was calculated.
Purpose:
Time Period of Content Date:
2018
Currentness Reference:
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Spatial Extent of Data:
Bounding Coordinates:
-97.666563
-89.397030
49.404412
43.160727
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Contact Person Information:
Jake Galzki,
University of Minnesota
1991 Upper Buford Circle
St. Paul,
MN
55108
Phone:
Email: galzk001@umn.edu
Browse Graphic:
None available
Associated Data Sets:
Section 2: Data Quality
Attribute Accuracy:
Logical Consistency:
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Horizontal Positional Accuracy:
Lineage:
Dataset copied.
Section 3: Spatial Data Organization (not used in this metadata)
Section 4: Coordinate System
Horizontal Coordinate Scheme:
Universal Transverse Mercator
UTM Zone Number:
15
Horizontal Datum:
NAD83
Horizontal Units:
meters
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Section 5: Attributes
Overview:
N_fert_lbs represents estimated amount of fertilizer N (elemental pounds) applied to the landscape.
Cdl_cult18 represents the estimated cultivated acres per watershed in 2018.
Nfert_Acre represents the estimated fertilizer per acre per watershed.
Detailed Citation:
Table Detail:
Section 6: Distribution
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Section 7: Metadata Reference
Metadata Date:
03/18/2022
Contact Person Information:
Jake Galzki,
University of Minnesota
1991 Upper Buford Circle
St. Paul,
MN
55108
Phone:
Email: galzk001@umn.edu
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