Abstract
The effect on crop yield of drip-irrigation frequencies of two irrigations per day (2/d), one irrigation per day (1/d), two irrigations per week (2/week), and one irrigation per week (1/week) was investigated for lettuce ( Lactuca sativa ), pepper ( Capsicum annuum ), and onion ( Allium cepa ) grown on sandy loam and processing tomato ( Lycopersicon esculentum ) grown on silt loam during experiments conducted during 1994 to 1997. All treatments of a particular crop received the same amount of irrigation water per week. Results showed that the 1/week frequency should be avoided for the shallow rooted crops in sandy soil. Irrigation frequency had little effect on yield of tomato, a relatively deep-rooted crop. These results suggest that drip irrigation frequencies of 1/d or 2/week are appropriate in medium to fine texture soils for the soil and climate of the project site. There was no yield benefit of multiple irrigations per day.
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Claims 4
Claim · model-written summary
Weekly irrigation should be avoided for shallow rooted crops in sandy soil.
- Taxon
- lettuce
Lactuca sativae1 - Treatment
- 1/weeke0
- Outcome
- should be avoidede0
- Setting
- sandy soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 1/week frequency should be avoided for the shallow rooted crops in sandy soil”
e1“for lettuce ( Lactuca sativa ), pepper ( Capsicum annuum ), and onion ( Allium cepa ) grown on sandy loam”
Claim · model-written summary
Irrigation frequency had little effect on tomato yield.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Irrigation frequencye0
- Outcome
- yield of tomatoe0
- Direction
- little effecte0
- Setting
- silt loame1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation frequency had little effect on yield of tomato”
e1“processing tomato ( Lycopersicon esculentum ) grown on silt loam”
Claim · model-written summary
Daily or twice-weekly drip irrigation was recommended for medium to fine textured soils at the project site.
- Taxon
- lettuceLactuca sativae1
- Outcome
- drip irrigation frequencies of 1/d or 2/week are appropriatee0
- Setting
- medium to fine texture soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drip irrigation frequencies of 1/d or 2/week are appropriate in medium to fine texture soils for the soil and climate of the project site”
e1“for lettuce ( Lactuca sativa ), pepper ( Capsicum annuum ), and onion ( Allium cepa )”
Claim · model-written summary
Multiple irrigations per day yielded no benefit.
- Taxon
- lettuceLactuca sativae1
- Treatment
- multiple irrigations per daye0
- Outcome
- yield benefite0
- Direction
- noe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no yield benefit of multiple irrigations per day.”
e1“for lettuce ( Lactuca sativa ), pepper ( Capsicum annuum ), and onion ( Allium cepa )”
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See all 344 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.