Extension and Economics

Use of weather-based spray decision models for reducing fungicide application costs on peanuts in north-western Australia
D.L. McNeil

Using a model to assess the profitability of applying nitrogen to dairy pastures
G.R. Olney, W.R. Standing and R.N. Glencross

An expert system for extension of weed control advice
G.M. Pasqual and R.W. Madin

Evaluation of written extension texts
T.F.Smith

The development and evaluation of siragcrop software for irrigated crops
M. Stapper, R.J.G. White, N. Phillips and G.M. Keegan

Padfert - extension experiences
P.N. Vance and R.L. Ada

'Wheatman' - a computer-based decision aid for wheat growers in Queensland
D.R. Woodruff

Market limitations to the adoption of new crops - a case history from north-west Europe
R.K.M. Hay