Package: drisdiagnostics
Type: Package
Title: Diagnostic Systems for Plant Nutrient Analysis (DRIS, MDRIS,
        PASS)
Version: 1.0.1
Authors@R: 
  c(
    person(
      "Blesson B.", "Varghese",
      email = "blessonvarghese1234@gmail.com",
      role = c("aut", "cre")
    ),
    person(
      "Mubashir", "Sadiq V",
      email = "msvillakkan@gmail.com",
      role = "aut"
    ),
    person(
      "Deepthi", "C",
      email = "deepthichonat@gmail.com",
      role = "aut"
    ),
    person(
      "Sowmiya", "Saravanan",
      email = "sowmiyasaravanan24@gmail.com ",
      role = "aut"
    ),
    person(
      "Aparna", "Mohan V",
      email = "aparnamohan2023@gmail.com",
      role = "aut"
    )
  )
Description: Provides implementations of the Diagnosis and Recommendation Integrated System (DRIS),
    the Modified DRIS (MDRIS), and the Plant Analysis with Standardized Scores (PASS) approaches
    for nutrient diagnosis in crops. These methods allow quantitative evaluation of nutrient
    imbalances using ratio-based indices and standardized scores, supporting improved fertilizer
    use efficiency and crop management decisions. The DRIS method is described in Walworth, J.L.
    and Sumner, M.E. (1987) <doi:10.1007/978-1-4612-4682-4_4>. The MDRIS approach is
    detailed in Beverly, R.B. (1987) <doi:10.1080/01904168709363672>. The PASS method
    combining DRIS and sufficiency ranges is presented in Baldock, J.O. and Schulte, E.E. (1996)
    <doi:10.2134/agronj1996.00021962008800030015x>.
License: GPL-3
Encoding: UTF-8
RoxygenNote: 7.3.2
Imports: ggplot2, stats, rlang
Suggests: readxl, testthat (>= 3.0.0)
Config/testthat/edition: 3
Depends: R (>= 3.5)
LazyData: true
NeedsCompilation: no
Packaged: 2026-09-15 18:54:14 UTC; bejoy
Author: Blesson B. Varghese [aut, cre],
  Mubashir Sadiq V [aut],
  Deepthi C [aut],
  Sowmiya Saravanan [aut],
  Aparna Mohan V [aut]
Maintainer: Blesson B. Varghese <blessonvarghese1234@gmail.com>
Repository: CRAN
Date/Publication: 2026-09-26 17:00:16 UTC
Built: R 4.5.2; ; 2026-09-26 17:36:17 UTC; unix
