If your concern is the economics of weed management, you need to describeĪ simple hydro-thermal time model attached that I've used in the past that Residues - there are manager components in the toolbox that do this. Pool, you must manage it by tilling (eg at sowing) to incorporate the Which can accumulate to obscene levels if left unattended - I onceĮncountered an embarassing simulation with 60t of accumulated surface Use the "Reset XYZ on sowing" component is to avoid dealing with SOM pools, Seriously, there are many aspects to consider here.
Specify a tillage management, it won't happen - thus no-till is the default There's a sample in the test dataset.īy default apsim does nothing unless you tell it to, so if you don't In the same space, there is also a facility to model surface residues as two pools - one standing, the other lying on the surface - the standing pool doesnt contribute to the surface cover and thus doesnt affect runoff / infiltration calculation. If the system you're working with doesnt immediately kill weeds, you can sow a weed module that consumes resources - the sample "Continuous maize and weeds" demonstrates the detail needed to implement the weed and crop components as intercrops. If your concern is the economics of weed management, you need to describe when the model should spray - here's a simple hydro-thermal time model attached that I've used in the past that simply models weed germination, and counts the number of consequent weeding events. If you are simulating a continuous SOM pool, you must manage it by tilling (eg at sowing) to incorporate the residues - there are manager components in the toolbox that do this. One of the reasons we use the "Reset XYZ on sowing" component is to avoid dealing with SOM pools, which can accumulate to obscene levels if left unattended - I once encountered an embarassing simulation with 60t of accumulated surface residues after only a few years.
Hi Nishant, glad to hear of your interest.īy default apsim does nothing unless you tell it to, so if you don't specify a tillage management, it won't happen - thus no-till is the default behaviour, and your job is done.
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