GrazPlan

Supporting documents and programs

A large number of biological functions are built into the GRAZPLAN models. The details of these are not apparent in the GRAZPLAN DS tools themselves but are of interest to those wanting to understand the information upon which the tools are based. Two Excel spreadsheet programs on cattle and sheep biology, CattleExplorer and SheepExplore, have been developed that support the GRAZPLAN models. These programs show how the various functions of the GRAZPLAN models work and the effects of changing parameters and input variables.

These spreadsheets are available to download for the information of students, researchers and other interested individuals:

Click here to open the excel spreadsheet CattleExplorer, then save it to your own computer.

Click here to open the excel spreadsheet SheepExplorer, then save it to your own computer.

Three other spreadsheet programs, ME_Required, CP_Required and Ca_P_Required, have been designed to help users estimate the nutrient requirements of sheep and cattle.

Click here to open the excel spreadsheet ME_Required, then save it to your own computer.

Click here to open the excel spreadsheet CP_Required, then save it to your own computer.

Click here to open the excel spreadsheet Ca_P_Required, then save it to your own computer.

GrassGro requires inputs on the physical properties of soils. In the absence of information from soil surveys, a guide to soil sampling and testing has been developed.

Click here to open the Adobe Acrobat file "Collecting soil inputs for GRAZPLAN decision support tools".

Also available is the latest Technical Paper on GrazFeed based on the original paper published in Agricultural Systems (Freer et al., 1997), which has been revised to match the current version (PDF file, 314kb).

For more information on GrazFeed, contact Dr Mike Freer on 02 6246 5312.

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