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Use of Farm-Level Survey Data in the Development of CARD Production Budgets. Luba Kurkalova, Todd Campbell, Phil Gassman, Uwe A. Schneider, and Chris Burkart CARD, Iowa State University Presented at 2002 AAEA Meeting Long Beach, CA, July 2002. Research Interest.

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Use of farm level survey data in the development of card production budgets l.jpg

Use of Farm-Level Survey Data in the Development of CARD Production Budgets

Luba Kurkalova, Todd Campbell, Phil Gassman, Uwe A. Schneider, and Chris Burkart

CARD, Iowa State University

Presented at 2002 AAEA Meeting

Long Beach, CA, July 2002


Research interest l.jpg
Research Interest Production Budgets

  • Policy studies to do Integrated Environmental and Economic Analysis

  • 12 states, National Resource Inventory (NRI)


Data needs l.jpg
Data Needs Production Budgets

  • Input to economic models: costs of production (PROCOST)

  • Inputs to bio-physical simulation models (EPIC, CENTURY, and SWAT)

  • List of practices (operations)

    • Tillage operations: how many passes, when, what implements, tractor characteristics

    • Fertilizer applications: how many applications, when, how, rate

    • Etc.


Cps fertilizer corn after soybeans conventional till l.jpg
CPS: Fertilizer Production Budgetscorn after soybeansconventional till

Number of applications

0

1

2

3

4

63%

2%

63%

29%

5%

0%

59%

5%

24%

59%

10%

1%

42%

0%

12%

29%

42%

15%


Cps machinery corn after soybeans iowa conventional till l.jpg
CPS: Machinery Production Budgetscorn after soybeans, Iowaconventional till

11.8%

Chisel plow

Fall

Field cultivator

Spring

Planter

Tandem disc

Spring

Tandem disc

Spring

Planter

8.9%

Chisel plow

Fall

Field cultivator

Spring

Field cultivator

Spring

Planter

2.9%

Chisel plow

Fall

Tandem disc

Spring

Field cultivator

Spring

Planter

2.5%

Tandem disc

Spring

Tandem disc

Spring

Field cultivator

Spring

Planter

2.5%


Representative practice vs whole sample l.jpg
Representative practice vs. whole sample Production Budgets

  • Cost of most frequently used practice (mode)

    • $204.6

  • Cost via whole sample

    • Mean cost: $243.0

    • Standard deviation of cost: $24.8


Development of budgets for large regions l.jpg
Development of budgets for large regions Production Budgets

  • Representative practice approach

    • Potential biases

  • Disaggregated approach

    • Sort CPS practices by state, crop, previous crop, tillage, and irrigation

    • Sort NRI points by the same criteria

    • Assign each NRI point a CPS practice from the corresponding group using weighted random draw


Disaggregated approach l.jpg
Disaggregated Approach Production Budgets

NRI

by state,

crop, prev. crop,

tillage, and irrig.

CPS

CPS practices

by state,

crop, prev. crop,

tillage, and irrig.

Costs and physical

simulation model

inputs at every

NRI point

Technical coeff.,

planting dates,

etc.

Soils, weather

prices,

cost coefficients,

etc.


Conclusions and discussion l.jpg
Conclusions and discussion Production Budgets

  • The disaggregated approach allows retention of observed variability of farming practices

  • To improve

    • Finer geographic identifiers

    • ARMS data, 1997 and later