Abstract
The Sustainable Agriculture Farming Systems (SAFS) Project was established in 1988 to study the transition from conventional to low-input and organic farm management in California's Sacramento Valley. We evaluated the effects of these alternative farming systems on soil compaction, water-holding capacity, infiltration, and water storage in relation to tomato yield and fruit quality within the SAFS cropping systems comparison 10 years after it had been established. Soil bulk density (0-15, 15-30, 30-45, and 45-60 cm) was not significantly different among the farming systems. In situ water-holding capacity at 24, 48 and 72 h after water application was significantly higher in the organic system at all times and depths except 45-60 cm. Cumulative water infiltration after 3 h in the organic and low-input cover crop-based plots was more than twice that of the conventional system. The more rapid infiltration in the low-input and organic systems resulted in increased total irrigation needs, more water stored in the soil profile throughout the 30 days before harvest, and lower fruit soluble solids and titratable acidity in these systems relative to the conventional system. Yields were not significantly different in the organic, low-input, and conventional systems during either 1997 or 1998.
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Claims 7
Claim · model-written summary
Soil bulk density was not significantly different among the alternative farming systems.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- alternative farming systemse1
- Outcome
- Soil bulk densitye2
- Direction
- no_changeinferrede2
- Setting
- California's Sacramento Valleyt0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in relation to tomato yield and fruit quality within the SAFS cropping systems comparison”
e1“We evaluated the effects of these alternative farming systems on soil compaction”
e2“Soil bulk density (0-15, 15-30, 30-45, and 45-60 cm) was not significantly different among the farming systems”
t0“Water Management in California's Sacramento Valley”
Claim · model-written summary
In situ water-holding capacity was significantly higher in the organic system at all times and depths except 45-60 cm.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- organic systeme3
- Outcome
- In situ water-holding capacitye3
- Direction
- highere3
- Qualifier
- except 45-60 cme3
- Setting
- California's Sacramento Valleyt0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in relation to tomato yield and fruit quality within the SAFS cropping systems comparison”
e3“In situ water-holding capacity at 24, 48 and 72 h after water application was significantly higher in the organic system at all times and depths except 45-60 cm”
t0“Water Management in California's Sacramento Valley”
Claim · model-written summary
Cumulative water infiltration after 3 h in the organic and low-input cover crop-based plots was more than twice that of the conventional system.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- organic and low-input cover crop-based plotse4
- Outcome
- Cumulative water infiltration after 3 he4
- Direction
- more than twicee4
- Comparator
- conventional systeme4
- Setting
- California's Sacramento Valleyt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in relation to tomato yield and fruit quality within the SAFS cropping systems comparison”
e4“Cumulative water infiltration after 3 h in the organic and low-input cover crop-based plots was more than twice that of the conventional system”
t0“Water Management in California's Sacramento Valley”
Claim · model-written summary
Low-input and organic systems resulted in increased total irrigation needs.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- low-input and organic systemse5
- Outcome
- total irrigation needse5
- Direction
- increasede5
- Setting
- California's Sacramento Valleyt0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in relation to tomato yield and fruit quality within the SAFS cropping systems comparison”
e5“The more rapid infiltration in the low-input and organic systems resulted in increased total irrigation needs”
t0“Water Management in California's Sacramento Valley”
Claim · model-written summary
Low-input and organic systems stored more water in the soil profile throughout the 30 days before harvest.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- low-input and organic systemse5
- Outcome
- water stored in the soil profilee6
- Direction
- moree6
- Qualifier
- throughout the 30 days before harveste6
- Setting
- California's Sacramento Valleyt0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in relation to tomato yield and fruit quality within the SAFS cropping systems comparison”
e5“The more rapid infiltration in the low-input and organic systems resulted in increased total irrigation needs”
e6“more water stored in the soil profile throughout the 30 days before harvest”
t0“Water Management in California's Sacramento Valley”
Claim · model-written summary
Fruit soluble solids and titratable acidity were lower in the low-input and organic systems than in the conventional system.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- low-input and organic systemse5
- Outcome
- fruit soluble solids and titratable aciditye7
- Direction
- lowere7
- Comparator
- conventional systeme7
- Setting
- California's Sacramento Valleyt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in relation to tomato yield and fruit quality within the SAFS cropping systems comparison”
e5“The more rapid infiltration in the low-input and organic systems resulted in increased total irrigation needs”
e7“lower fruit soluble solids and titratable acidity in these systems relative to the conventional system”
t0“Water Management in California's Sacramento Valley”
Claim · model-written summary
Tomato yields were not significantly different among the organic, low-input and conventional systems in 1997 or 1998.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- organic, low-input, and conventional systemse7
- Outcome
- Yieldse7
- Direction
- no_changeinferrede7
- Setting
- California's Sacramento Valleyt0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in relation to tomato yield and fruit quality within the SAFS cropping systems comparison”
e7“Yields were not significantly different in the organic, low-input, and conventional systems during either 1997 or 1998”
t0“Water Management in California's Sacramento Valley”
The same questions in other papers
cultivation system · soil: physics · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
See all 8 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.