Description Usage Arguments Value See Also Examples
Maize model, with harvest index and yield. from Muchow RC, Sinclair TR, and Bennett JM (1990). Temperature and Solar Radiation Effects on Potential Maize Yield across Locations AGRONOMY JOURNAL, VOL. 82, MARCH-APRIL 1990
1 2 3 4 | maize.muchow.model(Tbase1 = 8, TTE = 87, TTS = 67, Tbase2 = 0,
TTRUE = 500, TTM = 1150, TLN = 20, AM = 596, RUE1 = 1.6,
RUE2 = 1.2, K = 0.4, HImax = 0.5, Population = 7, sdate = 100,
ldate = 365, weather)
|
Tbase1 |
: base temperature before silking(degC) |
TTE |
: Thermal units from sowing to emergence/leaf growth (degC.day) |
TTS |
: Thermal units from end of leaf growth to silking (degC.day) |
Tbase2 |
: base temperature after silking (degC) |
TTRUE |
: Thermal units from silking for RUE change (degC.day) |
TTM |
: Thermal units from silking to physiological maturity (degC.day) |
TLN |
: total number of leaves initiated (-) |
AM |
: area of the largest leaf (cm2) |
RUE1 |
: radiation use efficiency (g.MJ-1) from crop emergence until 500 thermal units (base 0 "C) after silking |
RUE2 |
: radiation use efficiency (g.MJ-1) from 500 thermal units (base 0 "C) after silking |
K |
: radiation extinction coefficient (-) |
HImax |
: maximum harvest index - genetic potential (-) |
Population |
: number of plant per square meter (-) |
sdate |
: sowing date (day) |
ldate |
: end of simulation (day) |
weather |
: daily weather dataframe |
data.frame with TT1, TT2, STADE, LN, LAI, B, HI, YIELD
mm.A.fct
, mm.LN.fct
, mm.FAS.fct
, maize.multisy
,
mm.HI.fct
,maize.muchow.graph
1 2 3 | # not run in package test
# res = maize.muchow.model(weather=maize.weather(working.year=2010, working.site=1))
#res$FinalYield
|
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.