Found 28 datasets matching "manure nitrogen and phosphorus".
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This data set consists of county estimates of nitrogen and phosphorus in kilograms from animal manure in the conterminous United States for 2002. These estimates were based on county-level...
Search relevance: 270.28 | Views last month: 0 -
Animal agriculture manure is a primary source of nitrogen and phosphorus to surface and groundwater. Manure runoff from cropland and pastures or discharging animal feeding operations and...
Search relevance: 267.04 | Views last month: 6 -
This product provides tabular estimates of kilograms of nitrogen and phosphorus from a) fertilizer, and b) manure, for counties in the conterminous United States for the period 1950-2017. Data are...
Search relevance: 250.15 | Views last month: 0 -
This dataset contains estimates of the yearly sum of total nitrogen and total phosphorus (hereafter referred to as nitrogen and phosphorus) inputs from fertilizer applications and from manure...
Search relevance: 236.44 | Views last month: 17 -
This data set contains county estimates of nitrogen and phosphorus content of animal wastes produced annually for the years 1982, 1987, and 1992. The estimates are based on animal populations for...
Search relevance: 224.45 | Views last month: 0 -
This dataset contains tables of estimated fertilizer and manure nutrient inputs in kilograms to individual stream catchments of the continental United States from the National Hydrography Dataset...
Search relevance: 221.52 | Views last month: 0 -
This dataset contains four tables of estimates of the yearly sum of nitrogen and phosphorus inputs from fertilizer applications and from manure applications in selected watersheds in Chesapeake...
Search relevance: 210.58 | Views last month: 0 -
There are two datasets in the compressed file along with individual metadata files which completely describe the datasets. The first data set consists of county estimates of nitrogen and...
Search relevance: 179.21 | Views last month: 0 -
Nutrient recycling is fundamental to sustainable agricultural systems, but few mechanisms exist to ensure that surplus manure nutrients from animal feeding operations are transported for use on...
Search relevance: 125.99 | Views last month: 0 -
This tabular data set represents the estimated amount of phosphorus and nitrogen fertilizers applied to selected crops for the year 2002, compiled for every MRB_E2RF1 catchment of Major River...
Search relevance: 99.53 | Views last month: 0 -
This data set represents the estimated amount of phosphorus and nitrogen fertilizers applied to selected crops for the year 2002, compiled for every catchment of NHDPlus for the conterminous...
Search relevance: 98.00 | Views last month: 0 -
This data set represents the estimated amount of nitrogen and phosphorus in kilograms for the year 2002, compiled for every catchment of NHDPlus for the conterminous United States. The source...
Search relevance: 97.21 | Views last month: 0 -
This dataset consists of input and output datasets for estimating nitrogen and phosphorus balances for the Mississippi River Basin from 1950 to 2017. The N balance was calculated as the difference...
Search relevance: 86.63 | Views last month: 0 -
This dataset consists of input and output datasets for estimating nitrogen (N) and phosphorus (P) balances for the Mississippi River Basin from 1950 to 2017. The N balance was calculated as the...
Search relevance: 85.01 | Views last month: 0 -
Nitrate contamination of groundwater is widespread and persistent in the shallow surficial aquifer of northwestern Whatcom County where dairy farming and forage production is a primary land-use...
Search relevance: 82.02 | Views last month: 0 -
The Phosphorus Fertilizer Application data set of the Global Fertilizer and Manure, Version 1 Data Collection represents the amount of phosphorus fertilizer nutrients applied to croplands. The...
Search relevance: 76.21 | Views last month: 2 -
This metadata record covers 18 comma delimited files that support the USGS Scientific Investigations Report Manure and Fertilizer Inputs to Land in the Chesapeake Bay Watershed, 1950-2014 by...
Search relevance: 68.99 | Views last month: 0 -
The detrimental effects of excess nutrients and sediment entering the Chesapeake Bay estuary from its watersheds have necessitated regulatory actions. Federally-mandated reductions are apportioned...
Search relevance: 67.78 | Views last month: 0 -
This product consists of time-series calculations of anthropogenic characteristics derived for 16 data themes for multiple scales covering the conterminous United States. The characteristics are...
Search relevance: 66.40 | Views last month: 1 -
Wetlands provide numerous critical functions, including nutrient cycling and water quality improvement, that have made them a critical component of many state and local stewardship programs....
Search relevance: 64.07 | Views last month: 0
