Description Usage Arguments Value References Examples
This functions runs the WOFOST crop growth model
1 | wofost(crop, weather, soil, control)
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crop |
list. Crop parameters |
weather |
data.frame with weather data |
soil |
list. Soil parameters |
control |
list. Model control options |
matrix
Van Diepen, C.A., J. Wolf, and H van Keulen, 1989. WOFOST: a simulation model of crop production. Soil Use and Management, 5: 16-24
Van Keulen, H. and J. Wolf, 1986. Modelling of agricultural production : weather, soils and crops. http://edepot.wur.nl/168025
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | # input data
w <- example_weather()
w$srad <- w$srad * 1000
crop <- wofost_crop('barley')
soil <- wofost_soil('ec1')
contr <- wofost_control()
contr$modelstart <- as.Date("2012-02-06")
# run model
d <- wofost(crop, w, soil, contr)
# output
head(d)
tail(d)
plot(d[,'step'], d[, 'LAI'])
## compare with FORTRAN wofost
## 1
library(Rwofost)
crop <- wofost_crop("rapeseed_1001")
f <- system.file("extdata/Netherlands_Swifterbant.csv", package="meteor")
wth_n <- read.csv(f)
wth_n$date <- as.Date(wth_n$date)
cont <- wofost_control()
cont$IPRODL <- 0
soil <- wofost_soil("soil_5")
#wth_n <- wth_n[wth_n$date >= '1977-01-01', ]
cont$modelstart <- as.Date('1977-01-01')
cont$latitude <- 52.57
rp <- wofost(crop, wth_n, soil, cont)
f <- system.file("test/1/wofost.out", package="Rwofost")
d <- readWofostOutput(f)
plot(d[,'DAY'], d[,'LAI'], type='l')
points(rp[,'step'], rp[, 'LAI'])
# yield
plot(d[,'DAY'], d[,'WSO'], type='l')
points(rp[, 1], rp[,'WSO'])
## 2
# no photoperiod effect
crop$IDSL <- 0
rp <- wofost(crop, wth_n, soil, cont)
f <- system.file("test/2/wofost.out", package="Rwofost")
d <- readWofostOutput(f)
plot(d[,'DAY'], d[,'LAI'], type='l')
points(rp[,'step'], rp[, 'LAI'])
## 3 water limited
library(Rwofost)
crop <- wofost_crop("maize_1")
f <- system.file("extdata/Philippines_IRRI.csv", package="meteor")
wth_n <- read.csv(f)
wth_n$date <- as.Date(wth_n$date)
cont <- wofost_control()
soil <- wofost_soil("soil_5")
cont$modelstart <- as.Date('1985-01-01')
cont$elevation <- 21
cont$latitude <- 14.18
cont$ANGSTA <- -0.25
cont$ANGSTB <- -0.45
cont$IPRODL <- 1
rp <- wofost(crop, wth_n, soil, cont)
f <- system.file("test/3/wofost.out", package="Rwofost")
d <- readWofostOutput(f, TRUE)
plot(d[,'DAY'], d[,'LAI'], type='l')
points(rp[,'step'], rp[, 'LAI'])
## 4 water limited with groundwater
library(Rwofost)
crop <- wofost_crop("maize_1")
f <- system.file("extdata/Philippines_IRRI.csv", package="meteor")
wth_n <- read.csv(f)
wth_n$date <- as.Date(wth_n$date)
cont <- wofost_control()
soil <- wofost_soil("ec1")
cont$modelstart <- as.Date("1985-01-01")
cont$elevation <- 21
cont$latitude <- 14.18
cont$ANGSTA <- -0.25
cont$ANGSTB <- -0.45
cont$IPRODL <- 1
cont$IZT <- 1
rp <- wofost(crop, wth_n, soil, cont)
f <- system.file("test/4/wofost.out", package="Rwofost")
d <- readWofostOutput(f, TRUE)
plot(d[,'DAY'], d[,'LAI'], type='l')
points(rp[,'step'], rp[, 'LAI'])
## 5 npk mode
library(Rwofost)
f <- system.file("test/5/wofost_npk_reference_results.csv", package="Rwofost")
d = read.csv(f)
soil <- wofost_soil("ec4")
crop <- wofost_crop("winterwheat_102")
cont <- wofost_control()
cont$IPRODL <- 0
f <- system.file("extdata/Netherlands_Wageningen.csv", package="meteor")
wth <- read.csv(f)
wth$date = as.Date(wth$date)
wth = wth[wth$date >= "1976-01-01", ]
cont$modelstart <- as.Date("1976-01-01")
cont$npk_model = 1
cont$latitude <- 51.58
rp <- wofost(crop, wth, soil, cont)
plot(c(1:nrow(d)), d[, 'LAI'], type = "l")
points(rp[, 'step'], rp[, 'LAI'])
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