The economic potential of leguminous tree crops in zero-tillage cropping in Nigeria: a linear programming model

In alley farming, crop response to mulching is the most important determinant of whether or not the use of prunings for feeding animals is economic. At low crop yields, and low crop response to mulching, feeding part of the tree foliage to small ruminants is economically gainful but at high crop yield levels and higher crop response to mulching, the use of pruning for feeding animals is uneconomic at current market prices.

Section: Introductionmentioning

confidence: 99%

Optimum fodder-mulch allocation of tree foliage under alley farming in southwest Nigeria

Jabbar¹,

Cobbina

Reynolds³

1992

“…Theoretical and conceptual applications of economics to agroforestry have been presented by Filius, Arnold, Hoekstra, Baldwin et al, Applegate and Nicholson; and Anderson et al [9,4,14,1,2,3]. Empirical models using microcomputers, mathematics, and/or linear programming have been presented by Verinumbe et al, Hoekstra, Mendoza, and Wojtkowski et al [26,13,21,25]. These applications have largely focused on private sector applications of agroforestry.…”

Section: Agroforestry Economicsmentioning

confidence: 99%

Economic potential of agroforestry for public recreational parks

Broder

Odronic²

1990

The availability of public recreational facilities is being threatened by growing demands, limited supplies, and declining government funding. In response to these pressures, the economic potential of agroforestry for supplementing operating budgets of public recreational parks is examined in a case study park consisting of 324 hectares. Agroforestry enterprises native to the area were selected for development on 70 hectares of the site. Linear programming was used to determine the optimum combinations of 23 agroforestry regimes composed of the following activities: 1) conventional forestry planting, tree density of 1682 trees/hectare, 2) the selected agroforestry planting with hay, tree density of 1495 trees/hectare, 3) the selected agroforestry planting with grazing, 4) hay production, and 5) rental of pasture for grazing. The objective function of the study was to maximize the net present value of the study site subject to land, labor, capital, and minimum annual income constraints. The preferred optimal regime generated $1782 per hectare from an agroforestry planting configuration of 1495 trees/hectare with 75 percent hay, 25 percent grazing, and no annual income requirements. Minimum annual income requirements of $2400 and $4800 were feasible but suboptimal from a net present value criteria. The study found that agroforestry could be used to privatize selective activities of public recreational parks and thus enable public agencies to provide these facilities more effectively.

“…For instance, Verinumbe et al [1984] has described how linear programming can be used to evaluate the economic potential of leguminous tree crops in zero-tillage cropping in Nigeria. Raintree and Turray [1980] have also demonstrated the use of linear programming for economic evaluation of Leucaena-rice alley cropping systems.…”

Section: Land-use Allocation Modelmentioning

confidence: 99%

A mathematical model for generating land-use allocation alternatives for agroforestry systems

Mendoza

1987

Agroforestry has been considered a viable land-use system particularly in the tropical regions. In developing or designing agroforestry systems, various concerns have to be addressed namely: (1) economic; (2) biological and physical; and (3) silvicultural and ecological considerations. This paper addresses these concerns from an interdisciplinary perspective. A land-use allocation model which ensures the simultaneous consideration of these concerns is proposed.