Controlled traffic in sub-tropical grain production
Tullberg, J.N., 1988: Controlled traffic in sub-tropical grain production. Tillage and traffic in crop production Proceedings of the 11th international conference of the International Soil and Tillage Research Organization, Edinburgh, UK, 11-15 July 1988: 323-327
Tractor and implement energy inputs, crop yields and soil condition were monitored in 2 groups of replicated small plots and 2 large plots over 3 years. Barley was the major winter crop with summer crops of sorghum and soyabeans. The tractor was instrumented to measure fuel flow, drawbar pull, ground speed and wheel slip.