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usfertilizer
View on CRAN: Click
here
Download and install usfertilizer package within the R console
Install from CRAN:
install.packages("usfertilizer")
Install from Github:
library("remotes")
install_github("cran/usfertilizer") Install by package version:
library("remotes")
install_version("usfertilizer", "0.1.5") Attach the package and use:
library("usfertilizer")
Maintained by
Wenlong Liu
[Scholar Profile | Author Map]
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2018-03-23
Latest Update: 2018-04-02
Description:
Compiled and cleaned the county-level estimates of fertilizer, nitrogen and phosphorus, from 1945 to 2012 in United States of America (USA).The commercial fertilizer data were originally generated by USGS based on the sales data of commercial fertilizer. The manure data were estimated based on county-level population data of livestock, poultry, and other animals. See the user manual for detailed data sources and cleaning methods. 'usfertilizer' utilized the tidyverse to clean the original data and provide user-friendly dataframe. Please note that USGS does not endorse this package. Also data from 1986 is not available for now.
How to cite:
Wenlong Liu (2018). usfertilizer: County-Level Estimates of Fertilizer Application in USA. R package version 0.1.5, https://cran.r-project.org/web/packages/usfertilizer. Accessed 05 Jun. 2026.
Previous versions and publish date:
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Complete documentation for usfertilizer
Functions, R codes and Examples using
the usfertilizer R package
Some associated functions: us_fertilizer_county . usfertilizer .
Some associated R codes: data.R . Full usfertilizer package functions and examples
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