Precision Agriculture: The

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Precision Agriculture The Role of Science
Presented by
Dr. Eduardo Segarra Department of Agricultural
and Applied Economics, Texas Tech University
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Purpose of presentation

• Highlight the relevancy of science based
  research on agriculture, and highlight the
  importance of hedonic pricing

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• The Agricultural Sector in the 21st. century
  will be called upon to provide an
  abundant, diverse, safe, and of high quality
  supply of food and fiber at reasonable prices for
  consumers. and which is globally competitive,
  profitable for producers and processors, and
  minimizes environmental degradation

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• Traditional agricultural crop production
  practices have been based on broad input
  utilization prescriptions that ignore
  site-specific characteristics of crop fields
  within farms and/or
• across regions

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• Precision agriculture, precision farming,
  site-specific management, or also referred to as
  remote-sensing farming internalizes unique
  features of crop fields to tailor precise input
  utilization

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Specifically, What is Precision Agriculture?

• Precision agriculture deals with within-crop
  field disaggregation of inherent and applied
  factors of production or other characteristics
  which have significant impacts on the overall
  productivity (amount and quality of output
  produced) and environmental implications of crop
  production

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SPATIAL issues addressed by Precision Agriculture
practices

• Soil fertility
• Soil water holding capacity
• Weed and pest infestations
• Fertilizer use
• Irrigation water use
• Chemical use (herbicides insecticides)
• Quality of output produced
• Yield potential

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• Spatial Variability of Soil Properties
• Organic Matter
• pH
• Nitrogen
• Phosphorus
• Depth to caliche
• Slope altitude
• l Hydraulic properties

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Nitrogen Lbs/A
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Nitrogen
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Greenbug Damage
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Yield
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NO3-N Pre-Season Residual Map from 0 to 12 Inches
of Soil Depth, Gaines County, Texas.
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Derivation of PA Practices

• Determine plant growth conditions on a per unit
  land area basis
• Understand the interactions of plant stress and
  applied inputs on output production AND quality
• Use variable rate technology to apply inputs
  where AND when needed
• Develop decision aids for improved crop
  management (yield and quality)

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TECHNOLOGY TRANSFER

• Irrigation and Fertilizer use - according to
  Best Management Practices (BMP)
• IPM on a per unit land area basis
• Optimization of profits (amount of output
  produced and its quality)
• Minimization of environmental damage

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