Abstract
Site-Specific Irrigation Management (SSIM) can be defined as irrigation management (depth, timing) based oncrop need to defined sub-areas of a field referred to as management zones. Implementation of SSIM will require additionalirrigation system hardware, labor, and information on soil and/or plant water status in each management zone. Costsassociated with these additional requirements will need to be offset by increased receipts from improved crop yield and qualityin order for the technology to be adopted by producers. The potential for SSIM to increase crop yield, quality, and economicreturn has not been evaluated in field studies. Crops such as potatoes, for which yield and quality are highly sensitive to soilwater availability, are most likely to show an economic benefit from site-specific irrigation management. A two-year fieldstudy was conducted to evaluate the potential for SSIM to increase yield and quality of potatoes relative to ConventionalUniform Irrigation Management (CUIM). Near real-time soil water content was used to schedule irrigations under bothirrigation management treatments. Field average water application was nearly the same for the irrigation managementtreatments, 503 mm (19.8 in.) in 2001 and 445 mm (17.5 in.) in 2002. In both study years, tuber yield distributions trended4% greater under site-specific irrigation management but were not significantly different (p < 0.05). Total tuber yield perunit of water applied from irrigation and precipitation was 4% greater in 2001 and 6% greater in 2002 under SSIM. Basedon a local tuber quality adjusted potato processing contract price structure, the trend in gross income averaged across thefield site was $159/ha ($65/acre) greater with SSIM. This increase in gross income is likely about half the actual cost ofcommercial site-specific irrigation technology. The required 3- to 5-year crop rotation for potato disease management meansthat the site-specific irrigation system needs to be mobile or an economic benefit must also be realized from other crops inthe rotation. The economic benefit of SSIM needs to be increased or realized for other crops in the rotation for it to be aneconomically viable technology in potato production systems in Idaho.
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Claims 7
Claim · model-written summary
Field-average irrigation water application was nearly the same under both treatments in both years.
- Taxon
- POTATOES
Solanum tuberosumt0 - Treatment
- irrigation managementtreatmentse0
- Outcome
- Field average water applicatione0
- Direction
- nearly the samee0
- Value
- 503 mm (19.8 in.) in 2001 and 445 mm (17.5 in.) in 2002e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POTATOES”
e0“Field average water application was nearly the same for the irrigation managementtreatments, 503 mm (19.8 in.) in 2001 and 445 mm (17.5 in.) in 2002”
Claim · model-written summary
Tuber yield trended 4% greater under site-specific irrigation in both years without a significant difference.
- Taxon
- POTATOESSolanum tuberosumt0
- Treatment
- site-specific irrigation managemente0
- Outcome
- tuber yield distributionse0
- Direction
- greatere0
- Value
- 4%e0
- Comparator
- CUIMe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POTATOES”
e0“In both study years, tuber yield distributions trended4% greater under site-specific irrigation management but were not significantly different (p < 0.05)”
e1“ConventionalUniform Irrigation Management (CUIM)”
Claim · model-written summary
Total tuber yield per unit water was 4% greater under SSIM in 2001.
- Taxon
- POTATOESSolanum tuberosumt0
- Treatment
- SSIMe0
- Outcome
- Total tuber yield perunit of water applied from irrigation and precipitatione0
- Direction
- greatere0
- Value
- 4%e0
- Qualifier
- in 2001e0
- Comparator
- CUIMe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POTATOES”
e0“Total tuber yield perunit of water applied from irrigation and precipitation was 4% greater in 2001 and 6% greater in 2002 under SSIM”
e1“ConventionalUniform Irrigation Management (CUIM)”
Claim · model-written summary
Total tuber yield per unit water was 6% greater under SSIM in 2002.
- Taxon
- POTATOESSolanum tuberosumt0
- Treatment
- SSIMe0
- Outcome
- Total tuber yield perunit of water applied from irrigation and precipitatione0
- Direction
- greatere0
- Value
- 6%e0
- Qualifier
- in 2002e0
- Comparator
- CUIMe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POTATOES”
e0“Total tuber yield perunit of water applied from irrigation and precipitation was 4% greater in 2001 and 6% greater in 2002 under SSIM”
e1“ConventionalUniform Irrigation Management (CUIM)”
Claim · model-written summary
Gross income trended $159/ha greater under SSIM.
- Taxon
- POTATOESSolanum tuberosumt0
- Treatment
- SSIMe0
- Outcome
- gross incomee0
- Direction
- greatere0
- Value
- $159/ha ($65/acre)e0
- Comparator
- CUIMe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POTATOES”
e0“the trend in gross income averaged across thefield site was $159/ha ($65/acre) greater with SSIM”
e1“ConventionalUniform Irrigation Management (CUIM)”
Claim · model-written summary
The income increase was estimated at about half the cost of commercial SSIM technology.
- Taxon
- POTATOESSolanum tuberosumt0
- Treatment
- site-specific irrigation technologye0
- Outcome
- increase in gross incomee0
- Qualifier
- likely about half the actual coste0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POTATOES”
e0“This increase in gross income is likely about half the actual cost ofcommercial site-specific irrigation technology”
Claim · model-written summary
Economic viability of SSIM requires larger benefits or benefits in rotational crops.
- Taxon
- POTATOESSolanum tuberosumt0
- Outcome
- economic benefit of SSIM needs to be increased or realized for other crops in the rotatione0
- Setting
- Idahoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POTATOES”
e0“The economic benefit of SSIM needs to be increased or realized for other crops in the rotation for it to be aneconomically viable technology in potato production systems in Idaho”
The same questions in other papers
irrigation · yield · Solanum tuberosum (potato)Results differ
74 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- no effect
88 papers more in this group
See all 92 papers →climate site · yield · Solanum tuberosum (potato)Positive and negative results
15 papers in the same direction as this paper · 9 in the opposite direction
- positive
- negative
- negative
21 papers more in this group
See all 25 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.