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• 1. [Article] A computer model to simulate farm irrigation system energy requirements

  The development of the energy crisis has caused the use of depletable energy resources to be monitored quite closely in the United States. Within the agricultural sector, irrigation is a large user of ...

  Citation × Citation Citation Abstract Copy Title: A computer model to simulate farm irrigation system energy requirements Author: Kizer, Michael A. The development of the energy crisis has caused the use of depletable energy resources to be monitored quite closely in the United States. Within the agricultural sector, irrigation is a large user of energy, with the potential of using many times more energy than all other agricultural field operations. A better understanding of how energy is used by different irrigation systems could facilitate more efficient use of energy by one of the largest energy consumers in agriculture. This thesis attempts to realistically evaluate the total amount of non-renewable energy resources consumed in the irrigation process. Five portable and permanent sprinkler system types, plus trickle and gravity irrigation systems were studied. An evaluation of the energy required to manufacture the equipment, install it in the field, operate it, and transport it for an entire irrigation season was made. This evaluation was carried out in a variety of operating situations, with varying acreages, consumptive use rates, and total irrigation requirements. The paper begins by giving some background information about agriculture and irrigation as consumers of energy. A review of some of the research previously done which relates to energy use in irrigation is given. The evaluation of energy use by irrigation systems presented in this thesis were made with the use of a simulation model which was developed on the Oregon State University OS-3 Computer System. The model predicts energy requirements of an irrigation system by evaluating pumping energy requirements with basic hydraulic equations, the manufacturing energy requirements by calculating the required amounts of basic materials making up the system and the energy of manufacture of those basic materials. The energy for installation and the energy for transportation were evaluated by simulating methods of operation and management used in Oregon. The input parameters used in the modeling process. reproduce as closely as possible operating conditions encountered in Oregon. System types, component depreciation life, irrigation efficiencies and the range of irrigation requirements are ones that could typically be found in Oregon. For the situations considered, it was concluded that gravity irrigation required much less energy than other system types. The energy requirement for drip systems was about midway between the energy requirement for gravity systems and for sprinkler systems for most cases considered. The relative order of energy requirements for the various sprinkler systems was dependent upon the operating conditions considered. Title: A computer model to simulate farm irrigation system energy requirements Author: Kizer, Michael A. The development of the energy crisis has caused the use of depletable energy resources to be monitored quite closely in the United States. Within the agricultural sector, irrigation is a large user of energy, with the potential of using many times more energy than all other agricultural field operations. A better understanding of how energy is used by different irrigation systems could facilitate more efficient use of energy by one of the largest energy consumers in agriculture. This thesis attempts to realistically evaluate the total amount of non-renewable energy resources consumed in the irrigation process. Five portable and permanent sprinkler system types, plus trickle and gravity irrigation systems were studied. An evaluation of the energy required to manufacture the equipment, install it in the field, operate it, and transport it for an entire irrigation season was made. This evaluation was carried out in a variety of operating situations, with varying acreages, consumptive use rates, and total irrigation requirements. The paper begins by giving some background information about agriculture and irrigation as consumers of energy. A review of some of the research previously done which relates to energy use in irrigation is given. The evaluation of energy use by irrigation systems presented in this thesis were made with the use of a simulation model which was developed on the Oregon State University OS-3 Computer System. The model predicts energy requirements of an irrigation system by evaluating pumping energy requirements with basic hydraulic equations, the manufacturing energy requirements by calculating the required amounts of basic materials making up the system and the energy of manufacture of those basic materials. The energy for installation and the energy for transportation were evaluated by simulating methods of operation and management used in Oregon. The input parameters used in the modeling process. reproduce as closely as possible operating conditions encountered in Oregon. System types, component depreciation life, irrigation efficiencies and the range of irrigation requirements are ones that could typically be found in Oregon. For the situations considered, it was concluded that gravity irrigation required much less energy than other system types. The energy requirement for drip systems was about midway between the energy requirement for gravity systems and for sprinkler systems for most cases considered. The relative order of energy requirements for the various sprinkler systems was dependent upon the operating conditions considered. Close

• 2. [Article] Orchard irrigation

  Citation × Citation Citation Abstract Copy Title: Orchard irrigation Author: Schrack, Claud, Currin, Harvey William Title: Orchard irrigation Author: Schrack, Claud, Currin, Harvey William Close

• 3. [Article] Scale of operation on farms in a new irrigation district, Jefferson County, Oregon 1949-1953

  Citation × Citation Citation Abstract Copy Title: Scale of operation on farms in a new irrigation district, Jefferson County, Oregon 1949-1953 Author: Benedict, Russell Archie Title: Scale of operation on farms in a new irrigation district, Jefferson County, Oregon 1949-1953 Author: Benedict, Russell Archie Close

• 4. [Article] Response of field corn to irrigation, plant population, and nitrogen on soils of the Willamette catena

  The purpose of this study was to make a preliminary investigation of the productivity of some of the soils within the Willamette catena under different systems of soil management. The study was carried ...

  Citation × Citation Citation Abstract Copy Title: Response of field corn to irrigation, plant population, and nitrogen on soils of the Willamette catena Author: Andersen, Jimmie Lee The purpose of this study was to make a preliminary investigation of the productivity of some of the soils within the Willamette catena under different systems of soil management. The study was carried out at four experimental sites near Corvallis, Oregon, during the 1962 growing season. The soil at each site was representative of a different soil series. The soil series were Willamette, Woodburn, Amity, and Dayton which are well-drained, moderately well drained, imperfectly drained, and poorly drained, respectively. Productivity was measured in terms of shelled corn yield. The eight treatments (systems of soil managements) were different combinations of irrigation, plant population, and nitrogen fertilization practices. The irrigation treatments were irrigated and non-irrigated. The Ievels of plant population were 9000, 14000, 18000, and 22000 plants per acre. The rates of nitrogen fertilization were 60 and 180 pounds of N per acre. A second objective of this study was to measure the response of field corn to each of the three soil management practices. Data pertaining to the effects of the three practices on shelling percentage and ear moisture at harvest, as well as grain yield, were collected. There were significant yield responses to irrigation when accompanied by higher levels of plant population at all sites. Generally, yield responses to higher levels of plant population and the higher rate of nitrogen fertilization were measured on the irrigated plots, but not on the non-irrigated plots. The shelling percentage on the irrigated plots was higher than that on the non-irrigated plots only at the Amity and Dayton sites. Apparently, plant population and nitrogen had no effect on shelling percentage. The amount of moisture in the ears at harvest was apparently not affected by irrigation, plant population, and nitrogen fertilization practices. In general, the productivities of the soils at the Willamette, Woodburn, and Amity sites were similar and significantly greater than at the Dayton site under all systems of soil management. Title: Response of field corn to irrigation, plant population, and nitrogen on soils of the Willamette catena Author: Andersen, Jimmie Lee The purpose of this study was to make a preliminary investigation of the productivity of some of the soils within the Willamette catena under different systems of soil management. The study was carried out at four experimental sites near Corvallis, Oregon, during the 1962 growing season. The soil at each site was representative of a different soil series. The soil series were Willamette, Woodburn, Amity, and Dayton which are well-drained, moderately well drained, imperfectly drained, and poorly drained, respectively. Productivity was measured in terms of shelled corn yield. The eight treatments (systems of soil managements) were different combinations of irrigation, plant population, and nitrogen fertilization practices. The irrigation treatments were irrigated and non-irrigated. The Ievels of plant population were 9000, 14000, 18000, and 22000 plants per acre. The rates of nitrogen fertilization were 60 and 180 pounds of N per acre. A second objective of this study was to measure the response of field corn to each of the three soil management practices. Data pertaining to the effects of the three practices on shelling percentage and ear moisture at harvest, as well as grain yield, were collected. There were significant yield responses to irrigation when accompanied by higher levels of plant population at all sites. Generally, yield responses to higher levels of plant population and the higher rate of nitrogen fertilization were measured on the irrigated plots, but not on the non-irrigated plots. The shelling percentage on the irrigated plots was higher than that on the non-irrigated plots only at the Amity and Dayton sites. Apparently, plant population and nitrogen had no effect on shelling percentage. The amount of moisture in the ears at harvest was apparently not affected by irrigation, plant population, and nitrogen fertilization practices. In general, the productivities of the soils at the Willamette, Woodburn, and Amity sites were similar and significantly greater than at the Dayton site under all systems of soil management. Close

• 5. [Article] Irrigation system walk-through inspection analysis

  Declared out of print May 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.e...

  Citation × Citation Citation Abstract Copy Title: Irrigation system walk-through inspection analysis Author: Pacific Northwest Cooperative Extension Service, Washington State University. Cooperative Extension, University of Idaho. Cooperative Extension, Oregon State University. Extension Service, Trimmer, Walter L., Hansen, Hugh J. Declared out of print May 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Title: Irrigation system walk-through inspection analysis Author: Pacific Northwest Cooperative Extension Service, Washington State University. Cooperative Extension, University of Idaho. Cooperative Extension, Oregon State University. Extension Service, Trimmer, Walter L., Hansen, Hugh J. Declared out of print May 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Close

• 6. [Article] Sizing irrigation mainlines and fittings

  Declared out of print May 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.e...

  Citation × Citation Citation Abstract Copy Title: Sizing irrigation mainlines and fittings Author: Washington State University. Cooperative Extension, United States. Dept. of Agriculture, Oregon State University. Extension Service, Trimmer, Walter L., University of Idaho. Cooperative Extension Service, Hansen, Hugh J. Declared out of print May 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Title: Sizing irrigation mainlines and fittings Author: Washington State University. Cooperative Extension, United States. Dept. of Agriculture, Oregon State University. Extension Service, Trimmer, Walter L., University of Idaho. Cooperative Extension Service, Hansen, Hugh J. Declared out of print May 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Close

• 7. [Article] Irrigation scheduling

  Declared out of print May 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.e...

  Citation × Citation Citation Abstract Copy Title: Irrigation scheduling Author: Washington State University. Cooperative Extension, United States. Dept. of Agriculture, Oregon State University. Extension Service, Trimmer, Walter L., University of Idaho. Cooperative Extension Service, Hansen, Hugh J. Declared out of print May 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Title: Irrigation scheduling Author: Washington State University. Cooperative Extension, United States. Dept. of Agriculture, Oregon State University. Extension Service, Trimmer, Walter L., University of Idaho. Cooperative Extension Service, Hansen, Hugh J. Declared out of print May 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Close

• 8. [Article] Offsets for stationary sprinkler systems

  Published January 1986. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catal...

  Citation × Citation Citation Abstract Copy Title: Offsets for stationary sprinkler systems Author: Pacific Northwest Cooperative Extension, Trimmer, Walter L., Hansen, Hugh J. Published January 1986. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Title: Offsets for stationary sprinkler systems Author: Pacific Northwest Cooperative Extension, Trimmer, Walter L., Hansen, Hugh J. Published January 1986. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Close

• 9. [Article] Effects of differential irrigation and tillage-induced soil compaction on bush green beans and sweet corn

  Citation × Citation Citation Abstract Copy Title: Effects of differential irrigation and tillage-induced soil compaction on bush green beans and sweet corn Author: Burkwhat, Henry Edwin Title: Effects of differential irrigation and tillage-induced soil compaction on bush green beans and sweet corn Author: Burkwhat, Henry Edwin Close

• 10. [Article] Converting sprinkler systems to lower pressure

  Published January 1986. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catal...

  Citation × Citation Citation Abstract Copy Title: Converting sprinkler systems to lower pressure Author: Washington State University. Cooperative Extension, Pacific Northwest Cooperative Extension, United States. Dept. of Agriculture, Oregon State University. Extension Service, Trimmer, Walter L., University of Idaho. Cooperative Extension Service, Hansen, Hugh J. Published January 1986. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Title: Converting sprinkler systems to lower pressure Author: Washington State University. Cooperative Extension, Pacific Northwest Cooperative Extension, United States. Dept. of Agriculture, Oregon State University. Extension Service, Trimmer, Walter L., University of Idaho. Cooperative Extension Service, Hansen, Hugh J. Published January 1986. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog Close