Abstract
Anaerobic soil disinfestation (ASD) has been optimized and adopted as an organic alternative to chemical fumigation by strawberry growers in California. The ASD process relies on mixing labile carbon sources into the soil to generate chemical, physical, and microbiological changes aiding suppression of the soil-borne pathogens and enhancing fruit production. Continued ASD adoption is hindered by the increasing cost of rice bran, currently the most widely used carbon source. To address this need and to find suitable and economical alternative carbon sources, we conducted field evaluations of locally produced or sourced plant-based products. ASD with incorporated grass-sod clippings spent grain and coffee grounds from one supplier provided a 47% to 83% increase in fruit yields compared to untreated soil, but coffee grounds from a different supplier decreased strawberry yields. Carbon, nitrogen, and their ratios had important impacts on the efficacy of ASD with coffee grounds and grape pomace. ASD with wheat midds at 20 t/ha provided strawberry yields similar to chloropicrin-fumigated soil while substituting 30% of rice bran carbon rate with on-site grown cereal cover crop biomass resulted in yields similar to the full rate of rice bran but at a reduced cost. As we continue exploring cost-effective methods of soil disinfestation, we utilize ASD integrated with other pest management tools, such as the use of resistant cultivars and crop rotation for sustainable production.
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Claims 7
Claim · model-written summary
ASD with grass-sod clippings increased fruit yields by 47% to 83% against untreated soil.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassae1 - Treatment
- grass-sod clippingse0
- Outcome
- fruit yieldse0
- Direction
- increasee0
- Value
- 47% to 83%e0
- Comparator
- untreated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“ASD with incorporated grass-sod clippings spent grain and coffee grounds from one supplier provided a 47% to 83% increase in fruit yields compared to untreated soil”
e1“strawberry growers in California”
Claim · model-written summary
ASD with spent grain increased fruit yields by 47% to 83% against untreated soil.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- spent graine0
- Outcome
- fruit yieldse0
- Direction
- increasee0
- Value
- 47% to 83%e0
- Comparator
- untreated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASD with incorporated grass-sod clippings spent grain and coffee grounds from one supplier provided a 47% to 83% increase in fruit yields compared to untreated soil”
e1“strawberry growers in California”
Claim · model-written summary
ASD with coffee grounds from one supplier increased fruit yields by 47% to 83% against untreated soil.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- coffee grounds from one suppliere0
- Outcome
- fruit yieldse0
- Direction
- increasee0
- Value
- 47% to 83%e0
- Comparator
- untreated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASD with incorporated grass-sod clippings spent grain and coffee grounds from one supplier provided a 47% to 83% increase in fruit yields compared to untreated soil”
e1“strawberry growers in California”
Claim · model-written summary
Coffee grounds from a different supplier decreased strawberry yields.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- coffee grounds from a different suppliere0
- Outcome
- strawberry yieldse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“coffee grounds from a different supplier decreased strawberry yields”
Claim · model-written summary
Carbon, nitrogen and their ratios influenced ASD efficacy with coffee grounds and grape pomace.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- coffee grounds and grape pomacee0
- Outcome
- efficacy of ASDe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carbon, nitrogen, and their ratios had important impacts on the efficacy of ASD with coffee grounds and grape pomace”
e1“strawberry growers in California”
Claim · model-written summary
ASD with wheat midds gave strawberry yields similar to chloropicrin-fumigated soil.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- wheat midds at 20 t/hae0
- Outcome
- strawberry yieldse0
- Direction
- similare0
- Comparator
- chloropicrin-fumigated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASD with wheat midds at 20 t/ha provided strawberry yields similar to chloropicrin-fumigated soil”
Claim · model-written summary
Replacing 30% of rice bran carbon with cereal cover crop biomass gave similar yields at reduced cost.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- substituting 30% of rice bran carbon rate with on-site grown cereal cover crop biomasse0
- Outcome
- yieldse0
- Direction
- similare0
- Comparator
- full rate of rice brane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“substituting 30% of rice bran carbon rate with on-site grown cereal cover crop biomass resulted in yields similar to the full rate of rice bran but at a reduced cost”
e1“provided strawberry yields similar to chloropicrin-fumigated soil”
The same questions in other papers
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See all 8 papers →Coffea · yield · Fragaria x ananassa (strawberry)Results agree
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- positive
cover crop · yield · Fragaria x ananassa (strawberry)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- no effect
- no effect
- negative
3 papers more in this group
See all 7 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.