The Impact of Farm Size on Irrigation Practices and On-Farm Irrigation Efficiency in the Elephant Butte Irrigation District - PowerPoint PPT Presentation

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Title:

The Impact of Farm Size on Irrigation Practices and On-Farm Irrigation Efficiency in the Elephant Butte Irrigation District

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Small orchard nut production 161 lbs / acre-foot Large orchard nut production 300 lbs / acre-foot Next step ... – PowerPoint PPT presentation

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Title: The Impact of Farm Size on Irrigation Practices and On-Farm Irrigation Efficiency in the Elephant Butte Irrigation District


1
The Impact of Farm Size on Irrigation Practices
and On-Farm Irrigation Efficiency in the Elephant
Butte Irrigation District
  • Rhonda Skaggs
  • Zohrab Samani
  • New Mexico State University

2
Structure of U.S. Agriculture
  • Majority of production on few farms
  • Off-farm work
  • Retirement or residential/lifestyle farms
  • 54 of all U.S. farms
  • 7.8 of value of production
  • Urban fringe agriculture
  • Irrigated river valleys in the West

3
Irrigation in the West
  • 92 of consumptive water use
  • Increased competition for water supplies
  • Municipal
  • Industrial
  • Environmental
  • Increased irrigation efficiency?
  • Technologies or techniques

4
Elephant Butte Irrigation District
  • Irrigated farms increased 70, 1974-1997
  • Growth in small farms, urban fringe
  • Dualistic structure pecan production
  • This research
  • Relationship between farm size irrigation
    practices, efficiency
  • Potential responses to incentives water
    marketing
  • Data for 340 pecan orchards

5
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6
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7
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8
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9
Irrigation Duration
  • Hours / acre / irrigation
  • Indicator of irrigation efficiency
  • Deep percolation losses
  • Long durations due to
  • Highly permeable soils
  • Low discharge at farm turnout (infrastructure)
  • Surface roughness, unleveled fields
  • Guideline 0.5 hrs/ac/irrigation

10
Field Verification
  • Low flows
  • Small on-farm turnouts
  • Long fields, rough surfaces
  • Inadequate infrastructure
  • Easements, access, common property
  • Irrigation
  • Recreation
  • Tradition
  • Lifestyle
  • Meditation

11
Findings
  • Overdelivery to small farms
  • Underdelivery to large farms
  • Delivery losses or on-farm application?
  • Small orchard nut production
  • 161 lbs / acre-foot
  • Large orchard nut production
  • 300 lbs / acre-foot

12
Next step
  • Not feasible to survey producers
  • More field measurements conversations with
    water users
  • Programming models for different farms
  • They dont want to spend any money.
  • Im retired, what else have I got to do?
  • I like to listen to the water.
  • Objective functions?

13
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14
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15
EBID Distribution of Crops
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