agridat (version 1.25)

usda.gmoadoption: Adoption of genetically modified crops in the United States

Description

Adoption of genetically modified crops in the U.S. from 1996 to 2022.

Usage

data("usda.gmoadoption")

Format

A data frame with 145 observations on the following 3 variables.

year

Year of crop

crop

Crop type

percent

Percent of planted acres

Details

HT indicates herbicide-tolerant crops. Bt indicates insect-resistant (Bacillus thuringiensis) crops. The "percent" column is the percentage of planted acres for each crop that were genetically modified. HT/Bt for corn and cotton are not mutually exclusive categories. For example, as time progressed corn hybrids tended to be both HT and Bt.

References

None

Examples

if (FALSE) {
data(usda.gmoadoption)
dat <- usda.gmoadoption
library(ggplot2)
ggplot(dat, aes(x = year, y = percent, color = crop)) +
  geom_point() +
  geom_line() +
  labs(
    title = "Adoption of Genetically Engineered Crops in the U.S.",
    y = "Percentage of acres for each crop"
  ) +
  theme_minimal()
}