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• 21. [Article] An economic analysis of irrigation development in Nam Pong Irrigation Project, Khon Kaen, Thailand

  Citation × Citation Citation Abstract Copy Title: An economic analysis of irrigation development in Nam Pong Irrigation Project, Khon Kaen, Thailand Author: Sriswasdilek, Jerachone Title: An economic analysis of irrigation development in Nam Pong Irrigation Project, Khon Kaen, Thailand Author: Sriswasdilek, Jerachone Close

• 22. [Article] Economic optimization of irrigation

  Citation × Citation Citation Abstract Copy Title: Economic optimization of irrigation Author: English, Marshall J. Title: Economic optimization of irrigation Author: English, Marshall J. Close

• 23. [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

• 24. [Article] Evaluation of erosion and sediment loss in furrow irrigation with alternative irrigation practices

  Citation × Citation Citation Abstract Copy Title: Evaluation of erosion and sediment loss in furrow irrigation with alternative irrigation practices Author: Tunio, Abdul Fatah Title: Evaluation of erosion and sediment loss in furrow irrigation with alternative irrigation practices Author: Tunio, Abdul Fatah Close

• 25. [Article] Deep well irrigation in Hamilton County, Nebraska : resource, development, impact and future

  Citation × Citation Citation Abstract Copy Title: Deep well irrigation in Hamilton County, Nebraska : resource, development, impact and future Author: Nelson, Charles Edward Title: Deep well irrigation in Hamilton County, Nebraska : resource, development, impact and future Author: Nelson, Charles Edward Close

• 26. [Image] Rahad Irrigation Project (Sudan)

  	Citation × Citation Citation Abstract Copy Title: Rahad Irrigation Project (Sudan) Year: 1974 Title: Rahad Irrigation Project (Sudan) Year: 1974 Close

• 27. [Image] Amibara irrigation project (Ethiopia)

  	Citation × Citation Citation Abstract Copy Title: Amibara irrigation project (Ethiopia) Year: 1974 Title: Amibara irrigation project (Ethiopia) Year: 1974 Close

• 28. [Image] Multipurpose irrigation and power project in Turkey

  	Citation × Citation Citation Abstract Copy Title: Multipurpose irrigation and power project in Turkey Year: 1974 Title: Multipurpose irrigation and power project in Turkey Year: 1974 Close

• 29. [Image] Power & the People: Issue Backgrounder: BPA Irrigation Programs

  	Many of the region's irrigated farms are experiencing production costs which have been increasing faster than farm commodity prices. Farmers are exploring all possible avenues to cut their operating expenses. ...
  	Citation × Citation Citation Abstract Copy Title: Power & the People: Issue Backgrounder: BPA Irrigation Programs Author: Bonneville Power Administration Year: 1984 Many of the region's irrigated farms are experiencing production costs which have been increasing faster than farm commodity prices. Farmers are exploring all possible avenues to cut their operating expenses. They have turned to BPA for ways to cut their electricity bills Title: Power & the People: Issue Backgrounder: BPA Irrigation Programs Author: Bonneville Power Administration Year: 1984 Many of the region's irrigated farms are experiencing production costs which have been increasing faster than farm commodity prices. Farmers are exploring all possible avenues to cut their operating expenses. They have turned to BPA for ways to cut their electricity bills Close

• 30. [Article] Simple irrigation scheduling using the "look and feel" method

  Published August 1998. 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: Simple irrigation scheduling using the "look and feel" method Author: Long, L. E. (Lynn Edwards), 1953-, Oregon State University. Extension Service, Niederholzer, Franz Published August 1998. 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: Simple irrigation scheduling using the "look and feel" method Author: Long, L. E. (Lynn Edwards), 1953-, Oregon State University. Extension Service, Niederholzer, Franz Published August 1998. 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