Adaptation and productivity of annual medics : Project number K/2/900 (D) : final report to the Australian Wool Corporation

Abstract

The adaptation and productivity of annual medics (winter annual legumes in the Genus Medicago) in pasture-crop systems of southern inland Queensland were studied in two phases from 1969 to 1984. The potential area of adaptation of medics is 12 M ha in the pasture and croping lands.
The adapted area lies between 24 and 29 Slat. with an annual rainfall from 500 to 800 mm. In the first phase (1969-76) the main environmental factors controlling the behaviour of annual medi~s were analysed at Warwick, while in the second phase (1977-84) field studies examined the role of medics in the nitrogen economy of pastures and pasture-crop rotations on two soils of high and low fertility at Warwick, Gayndah and Roma.