Rquefts

1.2-8

Quantitative Evaluation of the Native Fertility of Tropical Soils

0packages depend

3Kdownloads / year

–test coverage

12/13checks pass

Overview

About

Maintained by Robert J. HijmansFirst published 2019-10-017 releasesCRAN page ↗GitHub ↗

An implementation of the QUEFTS (Quantitative Evaluation of the Native Fertility of Tropical Soils) model. The model (1) estimates native nutrient (N, P, K) supply of soils from a few soil chemical properties; and (2) computes crop yield given that supply, crop parameters, fertilizer application, and crop attainable yield. See Janssen et al. (1990) doi:10.1016/0016-7061(90)90021-Z for the technical details and Sattari et al. (2014) doi:10.1016/j.fcr.2013.12.005 for a recent evaluation and improvements. There are also functions to compute optimal fertilizer application rates.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("Rquefts", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("cropmodels/Rquefts")

Development version from cropmodels/Rquefts. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-rquefts

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-Rquefts

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-Rquefts

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

1NOTE12OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 2.4 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-05-02
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-25
11 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-22
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Show 3 earlier snapshots

OK2026-04-16
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-28
13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSYes · 0% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 70%
References docs: 23%

Downloads

CRAN downloads in the past year

Rank #12,404 · ~8/day · ~253/mo

Releases R versions

Daily download trend is not available in this view yet.

21130 days

81790 days

3K1 year

Compare downloads with other packages →

Also on419 r2u4 autocran50 c2d4u

Repository

GitHub ↗ cropmodels/rquefts

3Stars

1Forks

0Open issues

0Open PRs

0Releases

47Commits

2Contributors

fertilizermodel

License GPL-3.0 · 47 commits · Last activity 2025-12-29

Stars over time

2025-02-23 · 32026-07-07 · 3

Repository practices

Upstream repositoryBeta

Checks run against github.com/cropmodels/rquefts on 2026-07-31.

No development-tooling practices detected in the upstream repository.

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (3)

meteormethodsRcpp

LinkingTo (1)

Rcpp

Suggests (2)

terra limSolve

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (3)

Maintainer (1)

Robert J. Hijmans

Maintainer, Author

Authors (2)

Robert J. Hijmans

Maintainer, Author

Pieter Pypers

Contributor, Author · added in 1.2-1

Contributors (2)

Pieter Pypers

Contributor, Author · added in 1.2-1

Joost Wolff

Contributor

Package Timeline

7 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.2-8Latest
2026-03-17 · current release · diff ↗
1.2-5
2025-07-18 · diff ↗
unarchivedReturned to CRAN
2025-07-18
archivedRemoved from CRAN
2025-06-02
requires archived package 'limSolve'
R
R 4.5.0 released · 2025-04-11
1.2-4
2024-10-23 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.2-3
2023-10-24 · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
1.2-1
2021-04-30 · diff ↗
R
R 4.0.0 released · 2020-04-24
1.0-7
2020-03-13 · diff ↗
1.0-5
2019-10-01

Show 1 earlier events

R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-10-01
Total releases: 7 / 7 yrs
License: GPL (>= 3) OSI
Download size: 87 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Agricultural Science

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