Apsim Google Group

Rocks/stones in soil

val.s...@agresearch.co.nz (val.snow) — Thu, 26 Nov 2009 19:45:46 UT

Hi - quick question. I see that there is a column for rocks in the
soil description but cannot see that SoilWat reads any values in (that
I have found). Do values in that column have any effect? Or should I
be entering stone-corrected water contents? Thanks, Val

Re: Negative flow_no3

alvaro.rom...@dairynz.co.nz (Alvaro) — Thu, 26 Nov 2009 02:36:29 UT

Thanks Neil, I thought I was doing something wrong....

Trouble shooting guides

john.hargrea...@csiro.au — Wed, 25 Nov 2009 11:03:29 UT

Whatever happened to the troubleshooting guides? In particular, the science part is good background training material on checking the sensibility of simulations.

John Hargreaves
CSIRO Sustainable Ecosystems,
203 Tor Street, Toowoomba, Qld, Australia. 4350
PO Box 102, Toowoomba, Qld, Australia. 4350

Re: Negative flow_no3

neil.h...@csiro.au (Neil) — Wed, 25 Nov 2009 03:33:34 UT

Flow_no3 is the total nitrate N flowing out the bottom of each soil
layer. Flows are positive down. The negative value therefore means
you have a small upward flow into the layer. This is likely due to
unsaturated flow of water upwards due to gradients in soil moisture
content. This flow of water will take some NO3 with it.

Negative flow_no3

alvaro.rom...@dairynz.co.nz (Alvaro) — Wed, 25 Nov 2009 02:43:43 UT

Does it make sence???????

Alvaro

Re: [ExternalEmail] Re: logic tabs

dean.holzwo...@csiro.au (Dean Holzworth) — Mon, 23 Nov 2009 23:21:39 UT

HI John

Yeah I run into order issues all the time. Really frustrating. I'm not
sure why report is before most other modules in APSIM. I can't really
see why we can't make report last. There must be a reason though why
we made it the way it is...

Dean

RE: [ExternalEmail] Re: logic tabs

john.hargrea...@csiro.au — Mon, 23 Nov 2009 14:27:11 UT

Thanks Dean. The simple sample I constructed for you worked so will sort out what went wrong with the original.

I then tried a harvesting tab and ran into the order problem mentioned in an earlier post. Outputfile receives the harvesting event before the manager components, which is a shame - don't see why outputfile shouldn't be last, do you? A workaround is to have the harvest tab send a reportevent which outputfile can then report on but seems a bit convoluted and may have problems if there are other harvest tabs.

Re: logic tabs

dean.holzwo...@csiro.au (Dean Holzworth) — Sun, 22 Nov 2009 22:45:37 UT

Hi John

Should work. I use this technique in YieldProphet simulations.

Can you email me a .apsim file so that I can reproduce your problem.

Thanks
Dean

logic tabs

john.hargrea...@csiro.au — Fri, 20 Nov 2009 12:14:45 UT

I have manager logic for Maize -

if (stage = 10.0 ) then
act_mods maturity
endif
And a logic component with a tab named 'maturity' without quotes.
Manager code calculating harvest index in this tab is not being executed.

Tracker has a variable - "date of maturity as maturity_date"
and maturity_date is output correctly so it appears act_mods is publishing a maturity event.

Re: Is it possible to cut a crop for silage?

alvaro.rom...@dairynz.co.nz (Alvaro) — Fri, 20 Nov 2009 02:39:05 UT

In case anyone is interested, this is how maize silage cut could be
imitated

<manager name="MaizeHarvestingSilage">
<ui>
<category description="Harvesting criteria" />
<crop type="crop" description="Enter name of crop to
harvest at flowering : ">maize</crop>

Re: Graph function unable to read out file in 7.1

hod...@vt.edu (Steven Hodges) — Thu, 19 Nov 2009 15:19:18 UT

Dean:
My regional settings were set to mm/dd/yy (most common usage in the
US). Went back and changed using the drop down box - selected the
most appropriate option (dd/MMM/yy). No change. Rebooted. Still did
not run. Matter of fact, nothing ran properly, even the files that
worked just fine before.

Re: Graph function unable to read out file in 7.1

dean.holzwo...@csiro.au (Dean Holzworth) — Thu, 19 Nov 2009 02:06:08 UT

Hmm

The error indicates that it is a problem with date formats. I thought
we had fixed the issue of the graphing routines so that they can
handle different date formats. What is the date format as specified in
your Regional Settings in the Control Panel in Windows? Is it
different to dd/mm/yyyy??

Graph function unable to read out file in 7.1

hod...@vt.edu (SteveH) — Mon, 16 Nov 2009 21:17:44 UT

I am a new user and just made a clean install of version 7.1 (windows
xp). Started through some example files using the documentation.
Other than a few differences from the old documentation (no "global"
components for example) everything went according to plan until I ran
some simulations and then tried to insert an XY (or any other) graph.

Re: Apsim fatal error

keith.pemble...@fulbrightmail.org (Keith) — Sun, 15 Nov 2009 22:03:48 UT

Thanks for having a go Dean.
I can get it out to 30 year similations with out a problem, so that is
what I am working with now.
Keith

Re: Apsim fatal error

dean.holzwo...@csiro.au (Dean Holzworth) — Fri, 13 Nov 2009 05:47:17 UT

I've finally reproduced your problem. It is a nasty internal bug
caused by lucerne only when run for about 25 years or more. I've
repaired it and we'll probably put up a developmental build next week
some time (towards the end of the week). I can't think of a workaround
for you unfortunately, short of shortening your simulation length.