Package: soiltestcorr
Title: Soil Test Correlation and Calibration
Version: 2.2.1
Date: 2024-06-30
Authors@R: c(
    person(given = "Adrian A.", family = "Correndo",
             email = "acorrend@uoguelph.ca", role = c("aut", "cre", "cph"),comment = c(ORCID = "0000-0002-4172-289X")),
    person(given = "Austin", family = "Pearce",
             email = "awpearc2@ncsu.edu", role = "aut",comment = c(ORCID = "0000-0002-2541-896X")),
    person(given = "Fernando", family = "Miguez",
             email = "femiguez@iastate.edu", role = "ctb",comment = c(ORCID = "0000-0002-4627-8329")),
    person(given = "Deanna", family = "Osmond",
             email = "deanna_osmond@ncsu.edu", role = "aut",comment = c(ORCID = "0000-0002-6336-8318")),
    person("Ignacio A.", "Ciampitti", email = "ciampitti@ksu.edu", role = c("aut"), comment = c(ORCID = "0000-0001-9619-5129")) )
Description: A compilation of functions designed to assist users on the
        correlation analysis of crop yield and soil test values.
        Functions to estimate crop response patterns to soil nutrient
        availability and critical soil test values using various
        approaches such as: 1) the modified arcsine-log calibration
        curve (Correndo et al. (2017) <doi:10.1071/CP16444>); 2) the
        graphical Cate-Nelson quadrants analysis (Cate & Nelson
        (1965)), 3) the statistical Cate-Nelson quadrants analysis
        (Cate & Nelson (1971)
        <doi:10.2136/sssaj1971.03615995003500040048x>), 4) the
        linear-plateau regression (Anderson & Nelson (1975)
        <doi:10.2307/2529422>), 5) the quadratic-plateau regression
        (Bullock & Bullock (1994)
        <doi:10.2134/agronj1994.00021962008600010033x>), and 6) the
        Mitscherlich-type exponential regression (Melsted & Peck (1977)
        <doi:10.2134/asaspecpub29.c1>). The package development stemmed
        from ongoing work with the Fertilizer Recommendation Support
        Tool (FRST) and Feed the Future Innovation Lab for
        Collaborative Research on Sustainable Intensification (SIIL)
        projects.
License: MIT + file LICENSE
Encoding: UTF-8
Roxygen: list(markdown = TRUE)
RoxygenNote: 7.3.2
Suggests: knitr, rmarkdown, testthat
Imports: stats, dplyr, rlang, tidyr, utils, purrr, data.table, ggplot2,
        ggpp, nlstools, minpack.lm, modelr, nlraa, AICcmodavg, smatr
Depends: R (>= 3.6.0)
LazyData: true
VignetteBuilder: knitr
URL: https://adriancorrendo.github.io/soiltestcorr/,
        https://soiltestfrst.org/,
        https://www.siildigitalagconsortium.com/
BugReports: https://github.com/adriancorrendo/soiltestcorr/issues
Config/pak/sysreqs: make libicu-dev
Repository: https://adriancorrendo.r-universe.dev
Date/Publication: 2024-06-30 15:18:31 UTC
RemoteUrl: https://github.com/adriancorrendo/soiltestcorr
RemoteRef: HEAD
RemoteSha: a4e6ffbf53be0565409bbf8d498ad5dab9dde8f7
NeedsCompilation: no
Packaged: 2026-06-09 06:18:52 UTC; root
Author: Adrian A. Correndo [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0002-4172-289X>),
  Austin Pearce [aut] (ORCID: <https://orcid.org/0000-0002-2541-896X>),
  Fernando Miguez [ctb] (ORCID: <https://orcid.org/0000-0002-4627-8329>),
  Deanna Osmond [aut] (ORCID: <https://orcid.org/0000-0002-6336-8318>),
  Ignacio A. Ciampitti [aut] (ORCID:
    <https://orcid.org/0000-0001-9619-5129>)
Maintainer: Adrian A. Correndo <acorrend@uoguelph.ca>