The irritool package provides computational tools in R for irrigation.
You can install the development version of irritool from GitHub with:
# install.packages("devtools")
# devtools::install_github("joaobtj/irritool")
install.packages("irritool", repos = c('https://joaobtj.r-universe.dev', 'https://cloud.r-project.org'))
Detailed examples, including the complete workflow for calculating crop water requirements and simulating the daily soil water balance, are available in the package vignettes.
If you are using the package website, you can read the full tutorials in the Articles section: https://joaobtj.github.io/irritool/