Irrigation Water Resource Planning Optimization Model: The Case of Wine Grape Farming in Dodoma, Tanzania

Subject Areas : International Journal of Mathematical Modelling & Computations

Halidi Lyeme ^{1 *} , JAIROS SHINZEH ²

1 - Department of Mathematics, Faculty of Science, Muslim University of Morogoro, P. O. Box 1031, Morogoro, Tanzania.
2 - Department of Mathematics and Statistics, College: Natural and Mathematical Sciences, The University of Dodoma, P.O.Box 338-Dodoma.

Received: 2022-07-07 Accepted : 2023-03-11 Published : 2023-03-01

Keywords: linear programming, Optimization, Irrigation, MATLAB, FAO Penman-Monteith Equation,

Abstract :

Optimum cropping pattern in vineyard irrigated farming is one of the vital tasks for obtaining the best irrigation water reserves of the command. In this article the linear programming model was developed for optimal use of water and land resources. The model was tested by the data from Chinangali irrigated farmland with 120 cultivated hectares found in Dodoma, Tanzania. The results show that, the savings of 16 470.40 m3 of water per annum will be observed if the planting of 14.18 hectares of Chardonnay, 27.97 hectares of Cabernet sauvignon, 56.14 hectares of Riesling and 21.39 hectares of Chenin blanc. Thus, it was recommended that 1 173 359.60 m3 of water should be released to the irrigated farmland per annum for the best irrigation planning versus the 1 189 830 m3 of water supplied currently per annum.

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