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Low energy irrigation for the Pacific Northwest. Research technical completion report, B-056-IDA Item Info
![Basin tillage (surface storage enhancement by soil roughening) has been shown to be effective in controlling runoff from small grain plots irrigated with application rates up to 115 mm/hr. and total applications up to 75 mm with a single line of low pressure spray sprinklers. A grain stand reduction problem encountered with the use of basin tillage was overcome with modification to the hanger arrangement on the double disc openers on the drill. After these modifications, basin tilled treatments of spring wheat produced stands and yields not significantly different from conventional tillage. Yield, soil moisture, and runoff data were collected from plots comparing reservoir tillage to basin tillage and conventional tillage in replicated plots for spring wheat, corn, and potatoes. Soil moisture comparisons indicated that more moisture was retained for crop use with the reservoir system as opposed to conventional tillage and basin tillage. Runoff measurements also indicated that no runoff occurred using reservoir tillage, and that from 10 to 60 percent of the water applied left the field with conventional tillage. Yield increases of 9.5 percent with spring wheat, 31 percent with corn, and 22 percent with potatoes were recorded for the plots treated with reservoir tillage versus those with conventional tillage. Microclimate measurements were made of 15, 27, and 40 m downwind of an operating low pressure sprinkler lateral on a number of different days with varying wind conditions. Marked decreases in vapor pressure deficit (VPD) were consistently observed at the 15 m position relative to conditions 9 m upwind of the system. [...]](https://objects.lib.uidaho.edu/iwdl/small/iwdl-198509_sm.jpg)
- Title:
- Low energy irrigation for the Pacific Northwest. Research technical completion report, B-056-IDA
- Authors:
- Longley, T. S.
- Date Created (ISO Standard):
- 1985-03
- Description:
- Basin tillage (surface storage enhancement by soil roughening) has been shown to be effective in controlling runoff from small grain plots irrigated with application rates up to 115 mm/hr. and total applications up to 75 mm with a single line of low pressure spray sprinklers. A grain stand reduction problem encountered with the use of basin tillage was overcome with modification to the hanger arrangement on the double disc openers on the drill. After these modifications, basin tilled treatments of spring wheat produced stands and yields not significantly different from conventional tillage. Yield, soil moisture, and runoff data were collected from plots comparing reservoir tillage to basin tillage and conventional tillage in replicated plots for spring wheat, corn, and potatoes. Soil moisture comparisons indicated that more moisture was retained for crop use with the reservoir system as opposed to conventional tillage and basin tillage. Runoff measurements also indicated that no runoff occurred using reservoir tillage, and that from 10 to 60 percent of the water applied left the field with conventional tillage. Yield increases of 9.5 percent with spring wheat, 31 percent with corn, and 22 percent with potatoes were recorded for the plots treated with reservoir tillage versus those with conventional tillage. Microclimate measurements were made of 15, 27, and 40 m downwind of an operating low pressure sprinkler lateral on a number of different days with varying wind conditions. Marked decreases in vapor pressure deficit (VPD) were consistently observed at the 15 m position relative to conditions 9 m upwind of the system. [...]
- Subjects:
- Basins Tillage Irrigation efficiency Runoff Erosion Crop yield Microclimate Evapotranspiration
- Collection:
- IWRRI
- Series:
- Water for Idaho
- IWRRI number:
- 198509
- Rights:
- Rights to the digital resource are held by the University of Idaho. http://www.uidaho.edu/
- Publisher:
- Idaho Water Resources Research Institute; University of Idaho
- Contributing Institution:
- University of Idaho
- Type:
- Text
- Format:
- application/pdf
- Cataloger:
- KIT
- Date Digitized:
- 2017-08-31
Source
- Preferred Citation:
- "Low energy irrigation for the Pacific Northwest. Research technical completion report, B-056-IDA", Idaho Waters Digital Library, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iwdl/items/iwdl-198509.html
Rights
- Rights:
- Rights to the digital resource are held by the University of Idaho. http://www.uidaho.edu/