ISSN:
1365-2494
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
A linear programming model of a high-temperature grass-drying enterprise is described. From information about seasonal crop response, area of crop available and management constraints, the model determines the harvesting schedules which give greatest returns, less costs, from the enterprise over the season. This information can be used to examine the effects of long-term strategic decisions or to evaluate economically data on new crops from field experiments. For example, assuming a fixed cost of λ70,000/year for a high-temperature grass-drying installation and what is considered to be reliable input data for 1972, the returns less costs for optimum harvest schedules from different areas or crop varieties are:〈table colsep="0" rowsep="0" frame="topbot" pgwide="1" orient="port"〉〈tgroup cols="5" align="left"〉〈colspec colnum="1" colname="col1" align="center"/〉〈colspec colnum="2" colname="col2" align="center"/〉〈colspec colnum="3" colname="col3" align="center"/〉〈colspec colnum="4" colname="col4" align="center"/〉〈colspec colnum="5" colname="col5" align="center"/〉〈thead valign="bottom"〉〈entry namest="col1" nameend="col2" align="left"〉Corp areaSurplusGrass ac (ha)Lucerne ac (ha)Return, £Less costs £/ac(£/ha)crop ac (ha)〈tbody valign="top"〉800(324)0(0)42,849536(132.3)0(0)1000(405)0(0)60,286603(1489)205(83)600(243)200(81)46,73158.4(1442)0(0)800(324)200(81)65.66165.7(1621)109(44) The model can also provide information con cerning tbe limitations imposed by equipment stage of tbe process and management re straints sucb as limitations on overtime and shut downs for holidays or maintenance.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2494.1974.tb01265.x
