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• 1. [Article] Depreciation on different classes of farm machinery on different types of farms in Oregon

  Citation × Citation Citation Abstract Copy Title: Depreciation on different classes of farm machinery on different types of farms in Oregon Author: Goff, Arthur Mason Title: Depreciation on different classes of farm machinery on different types of farms in Oregon Author: Goff, Arthur Mason Close

• 2. [Image] Farm machinery for haying, 1929

  	Citation × Citation Citation Abstract Copy Title: Farm machinery for haying, 1929 Author: Crop and Soil Science Year: 1929 Title: Farm machinery for haying, 1929 Author: Crop and Soil Science Year: 1929 Close

• 3. [Image] Cherry orchard (east farm) and Wilson Foote with farm machinery, circa 1950

  	Citation × Citation Citation Abstract Copy Title: Cherry orchard (east farm) and Wilson Foote with farm machinery, circa 1950 Author: Crop and Soil Science Year: 1950 Title: Cherry orchard (east farm) and Wilson Foote with farm machinery, circa 1950 Author: Crop and Soil Science Year: 1950 Close

• 4. [Image] Cherry orchard (east farm) with farm machinery, circa 1950

  	Citation × Citation Citation Abstract Copy Title: Cherry orchard (east farm) with farm machinery, circa 1950 Author: Crop and Soil Science Year: 1950 Title: Cherry orchard (east farm) with farm machinery, circa 1950 Author: Crop and Soil Science Year: 1950 Close

• 5. [Image] Farm machinery for haying, 1929

  	Citation × Citation Citation Abstract Copy Title: Farm machinery for haying, 1929 Author: Crop and Soil Science Year: 1929 Title: Farm machinery for haying, 1929 Author: Crop and Soil Science Year: 1929 Close

• 6. [Image] Sherman Waldrip operates a six row beet cultivator on his small farm

  	KP-1188-R2 - Klamath Project. Region II. He and his brothers have leased this farm while awaiting the outcome of their applications to homestead some of the land that will be opened to settlement this ...
  	Citation × Citation Citation Abstract Copy Title: Sherman Waldrip operates a six row beet cultivator on his small farm Author: United States. Bureau of Reclamation, Fluharty, J.E. Year: 1946, 2006, 2005 KP-1188-R2 - Klamath Project. Region II. He and his brothers have leased this farm while awaiting the outcome of their applications to homestead some of the land that will be opened to settlement this fall in Tule Lake. Waldrip is a former 1st Lt. in the Heavy Tank Maintenance Unit in the 12th Army Group and saw service in France and Germany. He was in the ETO (European Theater of Operations) over one year and is a good example of the high type of young man who is anxious to secure a permanent livelihood from the soil; June 25, 1946; Photo by J. E. Fluharty Title: Sherman Waldrip operates a six row beet cultivator on his small farm Author: United States. Bureau of Reclamation, Fluharty, J.E. Year: 1946, 2006, 2005 KP-1188-R2 - Klamath Project. Region II. He and his brothers have leased this farm while awaiting the outcome of their applications to homestead some of the land that will be opened to settlement this fall in Tule Lake. Waldrip is a former 1st Lt. in the Heavy Tank Maintenance Unit in the 12th Army Group and saw service in France and Germany. He was in the ETO (European Theater of Operations) over one year and is a good example of the high type of young man who is anxious to secure a permanent livelihood from the soil; June 25, 1946; Photo by J. E. Fluharty Close

• 7. [Image] PH037_AG00121; 15341; P1540

  	[Farm workers and hay-baling machinery in field near Story, OR. Steam tractor in background, powering baling machine. Horses pulling hay on sledge in foreground.]; default
  	Citation × Citation Citation Abstract Copy Title: PH037_AG00121; 15341; P1540 Year: 1880 [Farm workers and hay-baling machinery in field near Story, OR. Steam tractor in background, powering baling machine. Horses pulling hay on sledge in foreground.]; default Title: PH037_AG00121; 15341; P1540 Year: 1880 [Farm workers and hay-baling machinery in field near Story, OR. Steam tractor in background, powering baling machine. Horses pulling hay on sledge in foreground.]; default Close

• 8. [Article] A comparison of box-cox and additive exponential models to estimate the depreciation of farm machinery

  Farm machinery continues to increase in its importance to the agricultural sector. Depreciation, the decline in value of a durable asset over time, represents one of the largest costs of agricultural production. ...

  Citation × Citation Citation Abstract Copy Title: A comparison of box-cox and additive exponential models to estimate the depreciation of farm machinery Author: Wu, Jing Farm machinery continues to increase in its importance to the agricultural sector. Depreciation, the decline in value of a durable asset over time, represents one of the largest costs of agricultural production. The general objectives of this study were to update and expand the number of Remaining Value (RV) functions for farm machinery; estimate and compare the depreciation patterns for Box-Cox (B-C) and Additive- Exponential (A-E) functional forms; and compare the predictive abilities of the two models. Data used in estimation were obtained from 15 years of machinery auction sales. Based on the hedonic approach, the Box-Cox and Additive-Exponential models were formulated to include variables for age, usage per year, condition, manufacturer, auction type and macroeconomic variables. Models were tested for potential correlation and heteroscedasticity problems. A Mean Absolute Percentage Error (MAPE) method was used to compare the predictive abilities. Depreciation functions were estimated for 17 types of machinery in four major categories: tractors, harvesting equipments, planting and tillage equipment and other equipment. A series of comparisons were conducted to examine the difference in depreciation patterns within and between major categories. B-C and A-E functions were estimated and compared for each data set. The comparison results showed that B-C always generated higher Log-likelihood values, but was relatively weak in predictive ability. The predictive ability of the Exponential model was also examined and the MAPE results showed that the Exponential model generally exhibited an overall best predictive ability. Title: A comparison of box-cox and additive exponential models to estimate the depreciation of farm machinery Author: Wu, Jing Farm machinery continues to increase in its importance to the agricultural sector. Depreciation, the decline in value of a durable asset over time, represents one of the largest costs of agricultural production. The general objectives of this study were to update and expand the number of Remaining Value (RV) functions for farm machinery; estimate and compare the depreciation patterns for Box-Cox (B-C) and Additive- Exponential (A-E) functional forms; and compare the predictive abilities of the two models. Data used in estimation were obtained from 15 years of machinery auction sales. Based on the hedonic approach, the Box-Cox and Additive-Exponential models were formulated to include variables for age, usage per year, condition, manufacturer, auction type and macroeconomic variables. Models were tested for potential correlation and heteroscedasticity problems. A Mean Absolute Percentage Error (MAPE) method was used to compare the predictive abilities. Depreciation functions were estimated for 17 types of machinery in four major categories: tractors, harvesting equipments, planting and tillage equipment and other equipment. A series of comparisons were conducted to examine the difference in depreciation patterns within and between major categories. B-C and A-E functions were estimated and compared for each data set. The comparison results showed that B-C always generated higher Log-likelihood values, but was relatively weak in predictive ability. The predictive ability of the Exponential model was also examined and the MAPE results showed that the Exponential model generally exhibited an overall best predictive ability. Close

• 9. [Image] Feed-cutting mill adjacent to stacks at the Liskey Brothers' farm

  	KP-1226-R2 - Klamath Project. Region II; August 2, 1946; Photo by R. S. Hopkins
  	Citation × Citation Citation Abstract Copy Title: Feed-cutting mill adjacent to stacks at the Liskey Brothers' farm Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1946, 2006, 2005 KP-1226-R2 - Klamath Project. Region II; August 2, 1946; Photo by R. S. Hopkins Title: Feed-cutting mill adjacent to stacks at the Liskey Brothers' farm Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1946, 2006, 2005 KP-1226-R2 - Klamath Project. Region II; August 2, 1946; Photo by R. S. Hopkins Close

• 10. [Image] Horse power used to pull a cultivating machine on a potato farm near Olene, Oregon

  	KP-1209-R2 - Klamath Project. Region II. Although tractors are used extensively in the Klamath Project, occasionally one sees horse power utilized to pull a cultivating machine. This picture of a potato ...
  	Citation × Citation Citation Abstract Copy Title: Horse power used to pull a cultivating machine on a potato farm near Olene, Oregon Author: United States. Bureau of Reclamation, Fluharty, J.E. Year: 1946, 2006, 2005 KP-1209-R2 - Klamath Project. Region II. Although tractors are used extensively in the Klamath Project, occasionally one sees horse power utilized to pull a cultivating machine. This picture of a potato patch was made near Olene, Oregon; June 26, 1946; Photo by J. E. Fluharty Title: Horse power used to pull a cultivating machine on a potato farm near Olene, Oregon Author: United States. Bureau of Reclamation, Fluharty, J.E. Year: 1946, 2006, 2005 KP-1209-R2 - Klamath Project. Region II. Although tractors are used extensively in the Klamath Project, occasionally one sees horse power utilized to pull a cultivating machine. This picture of a potato patch was made near Olene, Oregon; June 26, 1946; Photo by J. E. Fluharty Close