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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>.
| Version: | 1.0.1 |
| Depends: | R (≥ 3.5) |
| Imports: | ggplot2, stats, rlang |
| Suggests: | readxl, testthat (≥ 3.0.0) |
| Published: | 2026-09-26 |
| DOI: | 10.32614/CRAN.package.drisdiagnostics (may not be active yet) |
| 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 at gmail.com> |
| License: | GPL-3 |
| NeedsCompilation: | no |
| Materials: | README |
| CRAN checks: | drisdiagnostics results |
| Reference manual: | drisdiagnostics.html , drisdiagnostics.pdf |
| Package source: | drisdiagnostics_1.0.1.tar.gz |
| Windows binaries: | r-devel: not available, r-release: not available, r-oldrel: not available |
| macOS binaries: | r-release (arm64): drisdiagnostics_1.0.1.tgz, r-oldrel (arm64): drisdiagnostics_1.0.1.tgz, r-release (x86_64): drisdiagnostics_1.0.1.tgz, r-oldrel (x86_64): drisdiagnostics_1.0.1.tgz |
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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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