rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Impact of alternative energy prices, tenure arrangements and irrigation technologies on a typical Texas high plains farm firm
  name:
    name part: Petty, James A.
    role:
      role term: creator
  name:
    name part: Griffin, Wade L.
    role:
      role term: degree committee member.
  name:
    name part: Lacewell, Ronald Dale
    role:
      role term: degree supervisor.
  name:
    name part: McBee, George G.
    role:
      role term: degree committee member.
  name:
    name part: Whintson, Robert E.
    role:
      role term: degree committee member.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  genre: Academic theses
  origin info:
    place:
      place term: txu
    date issued: 1980
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xiv, 268 leaves : graphs ; 29 cm
  abstract: Irrigation is a major contributing factor in crop production on the Texas High Plains. It is responsible for greatly increasing crop production and farm income for the region. Two factors, a declining groundwater supply and increasing production costs, are of primary concern because they impact on farm operations and producer economic viability. A recursive linear programming model for a typical Texas High Plains irrigated farm was developed to evaluate expected impact of price changes, tenure and new technology. The model includes a Fortran sub-routine that adjusts irrigation factors each year based on the linear programming solution of the previous year. After calculating new pumping energy requirements, well yield, and pumping lift, the Fortran component updates the linear programming model. This procedure continues automatically to the end of a specified planning period or to economic exhaustion of the groundwater, whichever occurs first. Static applications of the model, in a deep water situation, showed that a natural gas price increase from $1.50 to $2.20 per thousand cubic feet (mcf) would result in reductions in irrigation levels. Irrigation was terminated when the price of natural gas reached about $7.00 per mcf. In a shallow water situation, much higher natural gas prices were reached ($3.60 per mcf) before short-run- adjustments in farm organization began to occur. Under furrow irrigation, irrigation was terminated when the natural gas price reached $7.00 per mcf. Increased natural gas prices impact heavily on returns above variable costs (up to 15 percent reductions) for a 60 percent natural gas price increase. The effects of rising natural gas prices over a longer period of time were more significant. Annual returns (above variable and fixed costs) were reduced by as much as 30 percent, and the present value of returns to water was reduced by as much as 80 percent as the natural gas price was increased annually by $0.25 per mcf (from $1.50 per mcf). Th…
  note: "Major subject: Agricultural Economics."
  note: Vita.
  note: Texas A & M University
  note: Includes bibliographical references (leaves 193-200).
  subject:
    geographic code: n-us-tx
  subject:
    topic: Agricultural productivity
    geographic: Texas
  subject:
    topic: Farm management
    geographic: Texas
    topic: Mathematical models
  subject:
    topic: Irrigation farming
    topic: Economic aspects
    geographic: Texas
  subject:
    topic: Major agricultural economics
  subject:
    topic: Agricultural productivity
  subject:
    topic: Economic history
  subject:
    topic: Farm management
    topic: Mathematical models
  subject:
    topic: Irrigation farming
    topic: Economic aspects
  subject:
    geographic: Texas Panhandle (Tex.)
    topic: Economic conditions
    topic: Mathematical models
  subject:
    geographic: Texas
  subject:
    geographic: Texas
    geographic: Texas Panhandle
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-685582
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-685582
  record info:
    record content source: TXA
    record creation date: 801031
    record change date: 20220104090450.0
    record identifier: in00000675343
    language of cataloging:
      language term: eng