This is a sample dataset from usfertilizer. Please visit <https://wenlong-liu.github.io/usfertilizer>. for more details.

fertilizer

Format

A data frame with 31,279 rows and 12 variables:

FIPS

FIPS is a combination of state and county codes, in character format.

State

The state abbr. of U.S.

County

County name in U.S.

ALAND

The land area in each county, unit: km squared

AWATER

The water area in each county, unit: km squared

INTPTLAT

The latitude of centriod in each county, e.g. 32.53638

INTPTLONG

The longitude of centriod in each county, e.g. -86.64449

Quantity

The quantity of fertilizeation as N or P, e.g. kg N or kg P

Year

The year of estimated data, e.g. 1994

Nutrient

The fertilizer type, e.g. N or P

Farm.Type

The land use type of fertilizer, e.g. farm and nonfarm

Input.Type

The input type of nutrient, e.g. Fertilizer or Manure

...

Examples

require(ggfertilizer) data(fertilizer)