From Weed to Wealth? Prospects for Medic Pastures in the Mediterranean Farming System of North-West Syria

Agricultural Economics Vol. 11, pp. 29-42, 1994

14 Pages Posted: 17 Sep 2012 Last revised: 15 Feb 2016

See all articles by Thomas L. Nordblom

Thomas L. Nordblom

Graham Centre for Agricultural Innovation (Charles Sturt University & NSW DPI)

David J. Pannell

University of Western Australia

Date Written: 1994

Abstract

Medic (Medicago spp.) pastures are widely grown in rotation with dryland cereal crops in Mediterranean climate zones of Australia. Attempts since the 1960’s to introduce this system to Mediterranean west Asia and north Africa (the native region of medic) have not lead to significant adoption; farmers in the region recognize medic, but as a weed and natural pasture plant. This first detailed economic evaluation of the rotational medic system was conducted using a whole-farm linear programming model based on the agricultural system of north-west Syria. The model represents in detail impacts of rotation on yields, labor requirements of alternative farm activities, availability of family and hired labor, subsistence income requirements, livestock feed sources and uses at different times and a choice of sheep stocking rates. Biological data for the analysis are based on a large six-year cropping and grazing experiment near Aleppo on terra-rossa soil with rainfall mainly in winter and averaging about 330 mm annually. The trial compared a dryland medic-wheat system and traditional two-year rotations of wheat with: fallow, watermelon, lentil and vetch. Results indicate that, given current prices and yields from the trial, medic is less profitable than traditional rotations. The model was used to investigate situations in which medic would be economically preferred. Selection of a medic rotation by the model was found to be particularly sensitive to the area of the farm and the price of labor. On small farms, labor availability per hectare is high, favouring the production of labor intensive crops such as lentil and watermelon. On larger farms, labor costs of these enterprises are substantial, increasing the relative profitability of medic, especially if labor prices increase. Interestingly, the relative desirability of medic is more sensitive to its impact on subsequent wheat crops than to the level of pasture production. We also found that modest increases in the prices of sheep products (especially milk) have a major impact on the economic performance of medic. These insights will allow improved focusing and targeting of future research and extension activities.

Keywords: bioeconomic, optimization, linear programming, whole-farm model, sensitivity analysis, farm size, sheep, nutritive requirements, stocking rates, sown pasture, production practices, family labor, hired labor, costs, prices, crop budgets, crop rotations, wheat, fallow, watermelon, vetch, lentil, medic

Suggested Citation

Nordblom, Thomas L. and Pannell, David J., From Weed to Wealth? Prospects for Medic Pastures in the Mediterranean Farming System of North-West Syria (1994). Agricultural Economics Vol. 11, pp. 29-42, 1994. Available at SSRN: https://ssrn.com/abstract=2147569

Thomas L. Nordblom (Contact Author)

Graham Centre for Agricultural Innovation (Charles Sturt University & NSW DPI) ( email )

Albert Pugsley Place
Wagga Wagga, NSW 2650
Australia
+61419290428 (Phone)

HOME PAGE: http://www.csu.edu.au/research/grahamcentre/our-people/members2/tom-nordblom

David J. Pannell

University of Western Australia ( email )

35 Stirling Highway
Crawley, Western Australia 6009
AUSTRALIA
(08) 9844 8659 (Phone)
(08) 9844 8659 (Fax)

HOME PAGE: http://www.general.uwa.edu.au/u/dpannell/welcome.html

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