Michael Robertson/Jacqui Hill Xth May 2004
Working science document for the lablab module
Introductory notes
The lablab module has received testing against four datasets from Queensland and the Northern Territory
Cultivars currently simulated are: Highworth (annual) and Endurance (perennial)
Users are invited to provide feedback on module performance to the convenors, Michael Robertson ( Michael.Robertson@csiro.au ) and Jacqui Hill ( Jacqueline.Hill@csiro.au ).
Science notes
Refer to the PLANT module science document for detail on the definition of parameters:
Syntax examples
To sow the annual cultivar:
if day = 24 and year = 2000 then
lablab sow cultivar = highworth, plants = 5 (/m2), sowing_depth = 40 (mm)
endif
To sow the perennial cultivar:
if day = 24 and year = 2000 then
lablab sow cultivar = endurance, crop_class = small_leaf, plants = 5 (/m2), sowing_depth = 40 (mm)
endif
To kill the stems of the perennial cultivar over winter in order to stall progression into higher phenological states:
if (mint < 5) and (lai < 0.5) and (day > 120 or day < 240) then
lablab kill_stem
endif
Relevant references
Module performance
Figures below show module performance for both cultivars at Gatton in Qld over one season (sown 24 th Jan 2000) under irrigated and dryland conditions; cultivar Highworth at Katherine in NT over one season (sown 1 st April 1980) under irrigated and dryland conditions; cultivar Highworth at Brian Pastures Research Station near Gayndah in Qld over two seasons (sown 4 th Jan 2000 and 14 th Dec 2000) under dryland conditions.
Gatton, Highworth irrigated
Gatton, Highworth dryland
Gatton, Endurance irrigated
Katherine, Highworth
Brian Pastures, Highworth, 2000
Brian Pastures, Highworth, 2001
