New Cotton Model

[hut104]

The APSIM Cotton model will be developed using the Plant Modelling Framework of Brown et al (2014). The model will build upon efforts in other crops in APSIM Next Generation.

Efforts are under way to collate datasets from current research in Northern Australia and previous work in NSW and central Queensland. We anticipate more concerted efforts commencing in 2021.

[sarahcleary]

@hut104 - - just following up the concept note. For background, please refer to https://github.com/APSIMInitiative/ReferencePanel/issues/57#issue-595681585

[Amitava-Soil]

I am trying to simulate cotton production in Mississippi, USA. I tried to modify the cultivar coefficient using S71BR cultivar but the LAI is way below the measured but the yield and evapotranspiration estimation is relatively close. Here is the cultivar parameters, I used. I appreciate any help.

• Reading Cultivar Parameters

   Cultivar   =  _DEFAULT_S71BR
   percent_L  =  45.00
   scboll     =  4.0
   respcon    =  0.016
   sqcon      =  0.022
   fcutout    =  0.5411
   flai       =  0.87
   ddisq      =  400.0
   dlds_max   =  0.12
   popcon     =  0.03633
   acotyl     =  525.0
   rlai       =  0.010
   frudd      =  40  130  200  275  375  500  675  800  
   bltme      =  0.00  0.00  0.00  0.07  0.21  0.33  0.55  1.00  
   wt         =  0.0104  0.0272  0.1441  0.0988  0.5042  0.9617  1.0000  0.5785  
   fburr      =  1.23
   rate_emergence       =  1.0
   background_retention =  0.80

Continuous Irrigated Cotton - deficit rule.txt

[edvlmaas]

Hi, is there an estimate when the cotton model will be available? I could use it for a project I'm currently working on. Please consider this a request to prioritize it! :-)