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A Partial Equilibrium (PE) model is developed to model fertiliser use in the grain crop andoilseed sectors to assess the impact of changes in the physical and economic environment onproduction and fertiliser use.Since the adoption of a policy of trade liberalisation and the shift towards a free market foragricultural products, the actual cropping patterns of grain crops have moved closer to theexpected optimum production pattern. It is shown that the total area cultivated will decreaseby 2,4 percent. Results show that except for the area under sunflower (that remainsunchanged) and yellow maize that increases, the area utilised by other crops will decrease.Fertiliser use is directly correlated with production patterns in the provinces. A comparisonof the base-case scenario and optimum solution revealed that the movement from a base to anoptimum solution results in a drop in total area cultivated, production and exports. Fertiliseruse correspondingly decreases.

Subject(s): Crop Production/Industries

Issue Date: 2000-09

Publication Type: Journal Article

PURL Identifier: Published in: Agrekon, Volume 39, Issue 3 Page range: 313-331

Total Pages: 19

Record appears in: Agricultural Economics Association of South Africa (AEASA) > Agrekon

Autor: Breitenbach, Marthinus C. ; Meyer, Nicolas G.


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