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agridat (version 1.26)

Agricultural Datasets

Description

Datasets from books, papers, and websites related to agriculture. Example graphics and analyses are included. Data come from small-plot trials, multi-environment trials, uniformity trials, yield monitors, and more.

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install.packages('agridat')

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Version

1.26

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MIT + file LICENSE

Maintainer

Kevin Wright

Last Published

November 19th, 2025

Functions in agridat (1.26)

ansari.wheat.uniformity

Uniformity trial of wheat

aastveit.barley

Barley heights and environmental covariates in Norway

allcroft.lodging

Multi-environment trial of cereal with lodging data

Datasets from agricultural experiments

acorsi.grayleafspot

Multi-environment trial evaluating 36 maize genotypes in 9 locations

For the 34 sheep sires, the number of lambs in each of 5 foot shape classes.

ars.earlywhitecorn96

Multi-environment trial of early white food corn

Multi-environment trial of sorghum at 3 locations across 5 years

australia.soybean

Multi-environment trial of soybean in Australia

Split-split plot experiment of apple trees

Multi-environment trial of maize in Texas.

batchelor.uniformity

Uniformity trials of apples, lemons, oranges, and walnuts

bancroft.peanut.uniformity

Uniformity trial of peanuts

Counts of webworms in a beet field, with insecticide treatments.

Survey and satellite data for corn and soy areas in Iowa

baker.strawberry.uniformity

Uniformity trial of strawberry

baker.barley.uniformity

Uniformity trials of barley, 10 years on same ground

Multi-environment trial of corn, incomplete-block design

beckett.maize.uniformity

A uniformity trial of maize in Ghana.

Presence of footroot disease in an endive field

Mating crosses of chickens

baker.wheat.uniformity

Uniformity trial of wheat

RCB experiment of wheat, 50 varieties in 3 blocks with strong spatial trend.

RCB experiment of spring barley in United Kingdom

bailey.cotton.uniformity

Uniformity trial of cotton in Egypt

Competition experiment in beans with height measurements

Check variety yields in winter wheat.

belamkar.augmented

Multi-environment trial of wheat with Augmented design

Yields of 8 barley varieties in 1913 as used by Student.

bachmaier.nitrogen

Trial of wheat with nitrogen fertilizer in two fertility zones

Weight of cork samples on four sides of trees

bridges.cucumber

Multi-environment trial of cucumbers in a latin square design

Corn borer infestation under four treatments

Multi-environment trial of wheat, conventional and semi-dwarf varieties

brandt.switchback

Switchback experiment on dairy cattle, milk yield for two treatments

bradley.multi.uniformity

Uniformity trial of 4 crops on the same land

Multi-environment trial of rape in Manitoba

bose.multi.uniformity

Uniformity trials of barley, wheat, lentils

besag.triticale

Four-way factorial agronomic experiment in triticale

Diallel cross of winter beans

Multi-environment trial of wheat in Sweden in 2016.

burgueno.rowcol

Row-column design

carlson.germination

Germination of alfalfa seeds at various salt concentrations

burgueno.unreplicated

Field experiment with unreplicated genotypes plus one repeated check.

Incomplete block alpha design

Diameters of apples

bryan.corn.uniformity

Uniformity trial of corn at 3 locations in Iowa.

caribbean.maize

Multi-environment trial of maize with fertilization

broadbalk.wheat

Long term wheat yields on Broadbalk fields at Rothamsted.

Multi-environment trial of maize with pedigrees

Multi-environment trial of corn, balanced incomplete block design

christidis.cotton.uniformity

Uniformity trial of cotton

chakravertti.factorial

Factorial experiment of rice, 3x5x3x3

chinloy.fractionalfactorial

Fractional factorial of sugarcane, 1/3 3^5 = 3x3x3x3x3

Soil resistivity in a field

christidis.wheat.uniformity

Uniformity trial of wheat

Yield and number of plants in a sugarbeet fertilizer experiment

Relative cotton yield for different soil potassium concentrations

christidis.competition

Competition between varieties in cotton

cornelius.maize

Multi-environment trial of maize for 9 cultivars at 20 locations.

corsten.interaction

Multi-environment trial of corn

Latin square design in wheat

coombs.rice.uniformity

Uniformity trial of rice in Malaysia

cochran.factorial

Factorial experiment of beans, 2x2x2x2

connolly.potato

Potato yields in single-drill plots

Nonlinear maize yield-density model

cochran.lattice

Balanced lattice experiment in cotton

cochran.eelworms

Counts of eelworms before and after fumigant treatments

Potato scab infection with sulfur treatments

cochran.wireworms

Wireworms controlled by fumigants in a latin square

Strip-split-plot of barley with fertilizer, calcium, and soil factors.

Darwin's maize data of crossed/inbred plant heights

Germination of Orobanche seeds for two genotypes and two treatments.

Incomplete-block experiment of maize in Ethiopia.

Multi-environment trial of wheat for 18 genotypes at 25 locations

dasilva.soybean.uniformity

Uniformity trial of soybean

cullis.earlygen

Early generation variety trial in wheat

Weight gain in pigs for different treatments

cramer.cucumber

Cucumber yields and quantitative traits

Multi-environment trial of maize

day.wheat.uniformity

Uniformity trial of wheat

davidian.soybean

Growth of soybean varieties in 3 years

Multi-environment trial with structured missing values

Graeco-Latin Square experiment in pine

draper.safflower.uniformity

Uniformity trial of safflower

davies.pasture.uniformity

Uniformity trial of pasture.

depalluel.sheep

Latin square of four breeds of sheep with four diets

Multi-environment trial of perennial ryegrass in France

Bodyweight of cows in a 2-by-2 factorial experiment

digby.jointregression

Multi-environment trial of wheat

engelstad.nitro

Multi-environment trial of corn with nitrogen fertilizer

durban.competition

Sugar beet yields with competition effects

Row-column experiment of spring barley, many varieties

durban.splitplot

Split-plot experiment of barley with fungicide treatments

ducker.groundnut.uniformity

Uniformity trial of groundnut

evans.sugarcane.uniformity

Uniformity trial of sugarcane

eden.tea.uniformity

Uniformity trial of tea

Multi-environment trial of oats in United States, 5 locations, 7 years.

Height of barley plants in a study of non-normal data

Potato yields in response to potash and nitrogen fertilizer

garber.multi.uniformity

Uniformity trials of oat hay and wheat grain

federer.tobacco

RCB of tobacco, height plants exposed to radiation

forster.wheat.uniformity

Uniformity trial of wheat in Australia.

Latin square experiment on mangolds

Multi-environment trial of wheat, 22 varieties at 14 sites in Australia

Yield monitor data from a corn field in Minnesota

Multi-environment trial of 5 barley varieties, 6 locations, 2 years

foulley.calving

Calving difficulty by calf sex and age of dam

federer.diagcheck

Wheat experiment with diagonal checks

Multi-environment trial of maize hybrids in China

gilmour.slatehall

Slate Hall Farm 1978

Multi-environment trial of soybeans in New York, 1977 to 1988

gilmour.serpentine

Wheat yield in South Australia with serpentine row/col effects

gomez.groupsplit

Group balanced split-plot design in rice

gomez.fractionalfactorial

Fractional factorial of rice, 1/2 2^6 = 2x2x2x2x2x2

Impact of Bt corn on non-target species

Multi-location/year breeding trial in California

gomez.heterogeneity

RCB experiment of rice, heterogeneity of regressions

Straw length and ear emergence for wheat genotypes.

gomez.heteroskedastic

RCB experiment of rice, heteroskedastic varieties

gomez.nonnormal2

RCB experiment of rice, measuring white heads

gomez.splitsplit

Split-split-plot experiment of rice

gomez.rice.uniformity

Uniformity trial of rice

gomez.multilocsplitplot

Multi-environment trial of rice, split-plot design

Soil nitrogen at three times for eight fertilizer treatments

RCB experiment of rice, 6 densities

gomez.nonnormal3

RCB experiment of rice, 12 varieties with leafhopper survival

gomez.splitplot.subsample

Split-plot experiment of rice, with subsamples

gomez.stripplot

Strip-plot experiment of rice

gomez.nonnormal1

Insecticide treatment effectiveness

Latin square experiment for testing fungicide

gomez.stripsplitplot

Strip-split-plot experiment of rice

Rice yield in wet & dry seasons with nitrogen fertilizer treatments

Factorial experiment of cotton in Sudan.

gotway.hessianfly

Hessian fly damage to wheat varieties

goulden.splitsplit

Split-split-plot experiment of wheat

graybill.heteroskedastic

Multi-environment trial of wheat varieties with heteroskedastic yields

goulden.barley.uniformity

Uniformity trial of barley

gorski.oats.uniformity

Uniformity trial of oats in Poland

Sample of egg weights on 24 consecutive days

gumpertz.pepper

Phytophtera disease incidence in a pepper field

hanks.sprinkler

Wheat yields in a line-source sprinkler experiment

harris.wateruse

Water use by horticultural trees

hansen.multi.uniformity

Multi-year uniformity trial in Denmark

haritonenko.sugarbeet.uniformity

Uniformity trial of sugar beet

grover.rcb.subsample

Rice RCB with subsamples

hadasch.lettuce

Lettuce resistance to downy mildew resistance (with marker data)

harris.multi.uniformity

Uniformity trials with multiple crops, 15 years on the same land

hanover.whitepine

Mating crosses of white pine trees

Average daily gain of 65 steers for 3 lines, 9 sires.

Diallel cross of Aztec tobacco

Birth weight of lambs from different lines/sires

heady.fertilizer

Yield of corn, alfalfa, clover with two fertilizers

heath.cabbage.uniformity

Uniformity trial of cabbage.

harrison.priors

Ranges of analytes in soybean from other authors

heath.radish.uniformity

Uniformity trial of radish

henderson.milkfat

Milk fat yields for a single cow

hartman.tomato.uniformity

Uniformity trial of tomato

hazell.vegetables

Gross profit for 4 vegetable crops in 6 years

RCB experiment of grape, disease incidence

holland.arthropods

Counts of arthropods in a grid-sampled wheat field

hernandez.nitrogen

Multi-environment trial of corn with nitrogen fertilizer at 5 sites.

hutchinson.cotton.uniformity

Uniformity trial of cotton

Multi-environment trial of wheat to illustrate stability statistics

Multi-environment trial of corn with nitrogen fertilizer

hildebrand.systems

Multi-environment trial of maize for four cropping systems

hessling.argentina

Relation between wheat yield and weather in Argentina

holtsmark.timothy.uniformity

Uniformity trial of timothy grass in Norway

holshouser.splitstrip

Split-strip-plot of soybeans

Infestation of apple shoots by apple canker.

jegorow.oats.uniformity

Uniformity trial of oats in Russia

jayaraman.bamboo

Bamboo progeny trial

Birth weight and weaning weight of Dorper x Red Maasi lambs

jansen.strawberry

Ordered disease ratings of strawberry crosses.

Infestation of carrots by fly larvae

igue.sugarcane.uniformity

Uniformity trial with sugarcane

iyer.wheat.uniformity

Uniformity trials of wheat in India

Percent ground cover of herbage species and nettles.

immer.sugarbeet.uniformity

Uniformity trial of sugarbeets, measurements of yield, sugar, purity

Potato blight due to weather in Prosser, Washington

jurowski.wheat.uniformity

Uniformity trial of wheat in Russia

Multi-environment trial of maize in Louisianna at 4 locs in 3 years

Yields from treatment for mildew control

johnson.douglasfir

A study of small-plots of old-growth Douglas Fir in Oregon.

Alpha lattice design of spring oats

jones.corn.uniformity

Uniformity trial of corn.

kalamkar.potato.uniformity

Uniformity trial of potatoes

kadam.millet.uniformity

Uniformity trial of millet

kalamkar.wheat.uniformity

Uniformity trial of wheat

Multi-environment trial of peanuts for 10 genotypes in 15 environments

kempton.slatehall

Slate Hall Farm 1976 spring wheat

kempton.barley.uniformity

Uniformity trial of barley

kempton.competition

Sugar beet trial with competition effects

Row-column experiment of wheat

keen.potatodamage

Damage to potato tubers from lifting rods.

Yield monitor data for 4 cuttings of alfalfa in Saudi Arabia.

karcher.turfgrass

Turfgrass ratings for different treatments

kerr.sugarcane.uniformity

Uniformity trials of sugarcane, 4 fields

Repeated measurement of weights of calves with two treatments.

Variety trial of potatoes, highly replicated

kirk.potato.uniformity

Uniformity trial of potato in Saskatchewan

kristensen.barley.uniformity

Uniformity trial of barley

khin.rice.uniformity

Uniformity trial of rice

Growth of maize plants in Germany during 1875-1878

khan.brassica.uniformity

Uniformity trial of brassica.

kotowski.potato.uniformity

Uniformity trial of potato in Poland.

kiesselbach.oats.uniformity

Uniformity trial of oats

kulkarni.sorghum.uniformity

Uniformity trial of sorghum

kling.augmented

Augmented design of meadowfoam

lander.multi.uniformity

Uniformity trials of wheat and chari, 4 years on the same land.

lee.potatoblight

Repeated measurements of resistance to potato blight

Yield monitor data for a corn field in Argentina with variable nitrogen.

lambert.soiltemp

Average monthly soil temperature near Zurich

laycock.tea.uniformity

Uniformity trials of tea

lavoranti.eucalyptus

Height of Eucalyptus trees in southern Brazil

lehner.soybeanmold

Yield, white mold, and sclerotia for soybeans in Brazil

lehmann.rice.uniformity

Uniformity trial of rice in India

larsen.timothy.uniformity

Uniformity trial of timothy grass in Norway

lehmann.millet.uniformity

Uniformity trial of millet in India

lin.superiority

Multi-environment trial of 33 barley genotypes in 12 locations

Load multiple packages and install if needed

loesell.bean.uniformity

Uniformity trial of white pea beans

little.splitblock

Split-block experiment of sugar beets

Multi-environment trial of wheat in Switzerland

li.millet.uniformity

Uniformity trial of millet

Multi-environment trial of 33 barley genotypes in 18 locations

Multi-environment trial of wheat susceptibile to powdery mildew

lonnquist.maize

Multi-environment trial of maize, half diallel

lessman.sorghum.uniformity

Uniformity trial of sorghum

lord.rice.uniformity

Uniformity trial of rice

love.cotton.uniformity

Uniformity trial of cotton

masood.rice.uniformity

Uniformity trial of rice

Multi-environment trial of winter wheat at 12 sites in 4 years.

Multi-environment trial of maize, to illustrate stability statistics

mcclelland.corn.uniformity

Uniformity trial of corn

lucas.switchback

Switchback experiment on dairy cattle, milk yield for 3 treatments

love.sugarcane.uniformity

Uniformity Trial of Sugarcane in Puerto Rico

lyon.potato.uniformity

Uniformity trial of potatoes

magistad.pineapple.uniformity

Uniformity trial of pineapple

mckinstry.cotton.uniformity

Uniformity trial of cotton in South Rhodesia

mead.strawberry

RCB experiment of strawberry

mcconway.turnip

RCB experiment of turnips

Density/spacing experiment for turnips in 3 blocks.

Number of lambs born to 3 breeds on 3 farms

mead.cowpea.maize

Intercropping experiment of maize/cowpea

Multi-environment trial of barley in South Canterbury with yield and yield components

mead.germination

Seed germination with different temperatures/concentrations

mercer.mangold.uniformity

Uniformity trial of mangolds

mead.cauliflower

Leaves for cauliflower plants at different times

mercer.wheat.uniformity

Uniformity trial of wheat

narain.sorghum.uniformity

Uniformity trial of sorghum

minnesota.barley.weather

Monthly weather at 6 sites in Minnesota 1927-1936.

Biomass of 3 crops in Greece

nagai.strawberry.uniformity

Uniformity trial of strawberry

montgomery.wheat.uniformity

Uniformity trial of wheat, 2 years on the same land

moore.uniformity

Uniformity trials of pole beans, bush beans, sweet corn, carrots, spring and fall cauliflower

nair.turmeric.uniformity

Uniformity trial of turmeric.

minnesota.barley.yield

Multi-environment trial of barley in Minnesota at 6 sites in 1927-1936.

U.S. historical crop yields by state

Multi-environment trial of tomato in Latin America, weight/yield and environmental covariates

Multi-environment trial of sorghum, 6 environments

odland.soybean.uniformity

Uniformity trials of soy hay and soybeans

nonnecke.peas.uniformity

Uniformity trial of canning peas

nebraska.farmincome

Nebraska farm income in 2007 by county

nonnecke.sweetcorn.uniformity

Uniformity trial of sweet corn

obsi.potato.uniformity

Uniformity trial of potato in Africa 2001

onofri.winterwheat

Multi-environment trial of winter wheat, 7 years

oliveira.lupin.uniformity

Uniformity trial of lupin in Portugal

oliveira.potato.uniformity

Uniformity trial of potato

pederson.lettuce.repeated

Repeated measurements of lettuce growth

paez.coffee.uniformity

Uniformity trial of coffee

parker.orange.uniformity

Uniformity trial of oranges

pacheco.soybean

Multi-environment trial of soybean in Brazil.

patterson.switchback

Switchback experiment on dairy cattle, milk yield for 4 treatments

perry.springwheat

Multi-environment trial of wheat cultivars introduced 1860-1982.

Counts of yellow/white and sweet/starchy maize kernels by 15 observers

Long term rotation experiment at Rothamsted

Apple tree yields for 6 treatments with covariate

panse.cotton.uniformity

Uniformity trial of cotton

ridout.appleshoots

Root counts for propagated columnar apple shoots.

Modified Latin Square experiments of wheat

polson.safflower.uniformity

Uniformity trial of safflower

petersen.sorghum.cowpea

Intercropping experiment of sorghum/cowpea

piepho.cocksfoot

Multi-environment trial of cock's foot, heading dates for 25 varieties in 7 years

rau.coffee.uniformity

Uniformity trial of coffee in India

ratkowsky.onions

Onion yields for different densities at two locations

piepho.barley.uniformity

Uniformity trial of barley

Yields of four grasses for a wide range of nitrogen fertilizer

rangaswamy.groundnut.uniformity

Uniformity trial of groundnut

roemer.sugarbeet.uniformity

Uniformity trial of sugar beets

Multi-environment trial of rice, with solar radiation and temperature

ryder.groundnut

RCB experiment of groundut, wet and dry yields

sawyer.multi.uniformity

Uniformity trials of wheat, swedes, oats, 3 years on the same land

robinson.peanut.uniformity

Uniformity trial of peanuts

Fungus infection in varieties of wheat

sayer.sugarcane.uniformity

Uniformity trial of sugarcane in India, 1932, 1933 & 1934.

saunders.maize.uniformity

Uniformity trial of maize in South Africa

rothamsted.brussels

RCB experiment of brussels sprouts, 9 fertilizer treatments

rothamsted.oats

RCB experiment of oats, straw and grain, 9 fertilizer treatments

Number of cotton bolls for different levels of defoliation.

shafii.rapeseed

Multi-environment trial of rapeseed in U.S.

smith.corn.uniformity

Uniformity trial of corn, 3 years on same ground

Multi-environment trial of oats in India

shafi.tomato.uniformity

Uniformity trial of tomato

siao.cotton.uniformity

Uniformity trials of cotton in China

smith.beans.uniformity

Uniformity trials of beans, 2 species in 2 years

sinclair.clover

Clover yields in a factorial fertilizer experiment

Multi-environment trial

smith.wheat.uniformity

Uniformity trial of wheat

stephens.sorghum.uniformity

Uniformity trial of sorghum silage

streibig.competition

Competition experiment between barley and sinapis.

stickler.sorghum.uniformity

Uniformity trial of sorghum

strickland.grape.uniformity

Uniformity trial of grape

snedecor.asparagus

Asparagus yields for different cutting treatments

Corn borer control by application of fungal spores.

strickland.apple.uniformity

Uniformity trial in apple

strickland.peach.uniformity

Uniformity trial of peach

steptoe.morex.pheno

Multi-environment trial of barley, phenotypic and genotypic data for a population of Steptoe x Morex

snijders.fusarium

Fusarium infection in wheat varieties

stroup.splitplot

Split-plot experiment of simulated data

theobald.covariate

Multi-environment trial of corn silage, Year * Loc * Variety with covariate

Multi-environment trial of potato in UK, yields and trait scores at 12 locations

Multi-environment trial of barley

Multi-environment trial of millet

theobald.barley

Multi-environment trial of barley, multiple years & fertilizer levels

RCB experiment of wheat at the Nebraska Intrastate Nursery

summerby.multi.uniformity

Uniformity trial of maize, oat, alfalfa, mangolds

strickland.tomato.uniformity

Uniformity trial of tomato

Multi-environment trial of potato

thompson.cornsoy

Multi-environment trial of corn & soybean, 1930-1962, with temperature and precipitation

Treatment x environment interaction in agronomy trials

tulaikow.wheat.uniformity

Uniformity trial of winter/spring wheat

urquhart.feedlot

Weight gain calves in a feedlot

vaneeuwijk.drymatter

Multi-environment trial of maize, dry matter content

usda.gmoadoption

Adoption of genetically modified crops in the United States

turner.herbicide

Herbicide control of larkspur

vaneeuwijk.nematodes

Number of cysts on 11 potato genotypes for 5 potato cyst nematode populations.

vaneeuwijk.fusarium

Infection of wheat varieties by Fusarium strains from 1990 to 1993

usgs.herbicides

Concentrations of herbicides in streams in the United States

Wheat yields in 7 years with genetic and environment covariates

walsh.cottonprice

Acres and price of cotton 1910-1943

Multi-environment trial of wheat with environmental covariates

wallace.iowaland

Iowa farmland values by county in 1925

Multi-environment trial of lupin, multiple varieties and densities

Long-term barley yields at different fertilizer levels

Multi-environment trial of lupin, early generation trial

vishnaadevi.rice.uniformity

Uniformity trial of rice

Soil nitrogen and carbon in two fields

wassom.brome.uniformity

Uniformity trials of bromegrass

Soybean balanced incomplete block experiment

wedderburn.barley

Multi-environment trial of barley, percent of leaves affected by leaf blotch

williams.cotton.uniformity

Uniformity trial of cotton

wheatley.carrot

Insecticide treatments for carrot fly larvae

welch.bermudagrass

Factorial experiment of bermuda grass, 4x4x4, N, P, K fertilizers

wiedemann.safflower.uniformity

Uniformity trial of safflower

Lattice experiment in soybeans.

wehner.cucumber.uniformity

Uniformity trial of cucumber in North Carolina

williams.barley.uniformity

Uniformity trial of barley

wiebe.wheat.uniformity

Uniformity trial of wheat

yan.winterwheat

Multi-environment trial of winter wheat in Ontario

Multi-environment trial of trees, height / survival of 37 species at 6 sites in Thailand

Split-plot experiment of oats

Factorial experiment of potato, 3x3 with missing values

Weight gain in pigs for different treatments

zuidhof.broiler

Daily weight, feed, egg measurements for a broiler chicken

Multi-environment trial of barley in Alberta, 6 varieties at 18 locations in Alberta.

wyatt.multi.uniformity

Uniformity trial of oats and wheat on the same ground.