D.F. Hocking, J.A. Murison
Vegetable production on the Hawkesbury sandstone derived soils of the Gosford area relies on numerous cultivations using ploughs and rotary hoes. This results in severe erosion during periods of heavy rainfall which can occur in any month of the year.

Successful production of orchard crops and field crops has been carried out in the local area and other districts in Australia using minimum tillage techniques. The authors, upon seeking information on production of vegetables under reduced or non cultivation systems, were unable to find much information.

To explore and develop suitable systems to evaluate the practicability of reduced or minimum tillage as a concept for a mixed vegetable cropping regime, a trial was undertaken at the Somersby Research Station of the NSW Department of Agriculture commencing in 1984. The site was typical of the district being a sandy soil derived from Hawkesbury sandstone with a depth of up to 5–7 m before the bedrock.

Climate is mild with summer rainfall predominating, although heavy falls can occur during any month. Temperatures are warm to hot in summer and mild to cool in winter. Frosts occur about 5–10 days per year mostly in July-August.

Hocking, D.F. and Murison, J.A. (1989). MINIMUM TILLAGE OF VEGETABLE CROPS. Acta Hortic. 247, 263-266
DOI: 10.17660/ActaHortic.1989.247.50

Acta Horticulturae