Abstract
The influence of organic soil amendments (unamended control, composted dairy manure, or raw dairy manure) and weed treatments [critical period (CP) or no seed threshold (NST)] on diseases, growth parameters, yield, and postharvest quality was evaluated over 3 years in a transitional organic crop rotation of tomato, cabbage, clover, and wheat. More growth, yield, and postharvest quality parameters were affected by amendment treatments in cabbage than in tomato. Significant differences in yield among amendment treatments were found in 2001 and 2003 in cabbage, with higher marketable and total yields in amended vs. control plots. Soil management effects on cabbage varied annually, though amendments were required to maximize crop growth, as head weight, size, and volume and core volume of treatment plots exceeded the control plots in 2002 and 2003. Few differences were found between weed treatments, although in 2001 cabbage heads from the NST treatment were larger than heads from the CP treatment. Similar results were found in tomato in 2003. Also, the CP treatment had a higher Area Under the Disease Progress Curve than the NST treatment in tomato in 2003. Overall, disease pressure was highest in tomato in 2001. But disease levels within years were mostly unaffected by amendment treatments. In cabbage, disease was more common in 2002 than in 2003, although head rot was more prevalent in compost-amended plots in 2003 than in manure-amended or control plots. Tomato postharvest quality parameters were similar among amendment and weed treatments within each year. Soil amendment may enhance crop yield and quality in a transitional-organic system. Also, weed management strategy can alter weed populations and perhaps disease levels.
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Claims 13
Claim · model-written summary
More growth, yield and postharvest quality parameters were affected by amendment treatments in cabbage than in tomato.
- Taxon
- cabbage
Brassica oleracea var. capitatae0 - Outcome
- growth, yield, and postharvest quality parameterse0
- Qualifier
- than in tomatoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“More growth, yield, and postharvest quality parameters were affected by amendment treatments in cabbage than in tomato”
Claim · model-written summary
In cabbage, marketable and total yields were higher in amended than in control plots, with significant differences in 2001 and 2003.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- amendment treatmentse0
- Outcome
- marketable and total yieldse0
- Direction
- highere0
- Qualifier
- 2001 and 2003e0
- Comparator
- control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant differences in yield among amendment treatments were found in 2001 and 2003 in cabbage, with higher marketable and total yields in amended vs. control plots”
Claim · model-written summary
In cabbage, head weight, size and volume of amended plots exceeded the control plots in 2002 and 2003.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- amendmentse0
- Outcome
- head weight, size, and volumee0
- Direction
- exceedede0
- Qualifier
- 2002 and 2003e0
- Comparator
- control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil management effects on cabbage varied annually, though amendments were required to maximize crop growth, as head weight, size, and volume and core volume of treatment plots exceeded the control plots in 2002 and 2003”
Claim · model-written summary
In cabbage, core volume of amended plots exceeded the control plots in 2002 and 2003.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- amendmentse0
- Outcome
- core volumee0
- Direction
- exceedede0
- Qualifier
- 2002 and 2003e0
- Comparator
- control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil management effects on cabbage varied annually, though amendments were required to maximize crop growth, as head weight, size, and volume and core volume of treatment plots exceeded the control plots in 2002 and 2003”
Claim · model-written summary
In 2001, cabbage heads from the no seed threshold (NST) weed treatment were larger than heads from the critical period (CP) treatment.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- NST treatmente0
- Outcome
- headse0
- Direction
- largere0
- Qualifier
- in 2001e0
- Comparator
- CP treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 2001 cabbage heads from the NST treatment were larger than heads from the CP treatment”
Claim · model-written summary
In tomato in 2003, the CP weed treatment had a higher Area Under the Disease Progress Curve than the NST treatment.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- CP treatmente0
- Outcome
- Area Under the Disease Progress Curvee0
- Direction
- highere0
- Qualifier
- in 2003e0
- Comparator
- NST treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the CP treatment had a higher Area Under the Disease Progress Curve than the NST treatment in tomato in 2003”
Claim · model-written summary
Disease pressure was highest in tomato in 2001.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- disease pressuree0
- Qualifier
- in 2001e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease pressure was highest in tomato in 2001”
Claim · model-written summary
Disease levels within years were mostly unaffected by amendment treatments.
Not reportedTaxonComparator
Verbatim
e0“disease levels within years were mostly unaffected by amendment treatments”
Claim · model-written summary
In cabbage, disease was more common in 2002 than in 2003.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Outcome
- diseasee0
- Qualifier
- more common in 2002 than in 2003e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In cabbage, disease was more common in 2002 than in 2003”
Claim · model-written summary
In cabbage in 2003, head rot was more prevalent in compost-amended plots than in manure-amended or control plots.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- compost-amended plotse0
- Outcome
- head rote0
- Direction
- more prevalente0
- Qualifier
- in 2003e0
- Comparator
- manure-amended or control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In cabbage, disease was more common in 2002 than in 2003, although head rot was more prevalent in compost-amended plots in 2003 than in manure-amended or control plots”
Claim · model-written summary
Tomato postharvest quality parameters were similar among amendment and weed treatments within each year.
- Taxon
- TomatoSolanum lycopersicume0
- Treatment
- amendment and weed treatmentse0
- Outcome
- postharvest quality parameterse0
- Direction
- similare0
- Qualifier
- within each yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato postharvest quality parameters were similar among amendment and weed treatments within each year”
Claim · model-written summary
The authors conclude that soil amendment may enhance crop yield and quality in a transitional-organic system.
Verbatim
e0“Soil amendment may enhance crop yield and quality in a transitional-organic system”
Claim · model-written summary
The authors state that weed management strategy can alter weed populations and perhaps disease levels.
- Treatment
- weed management strategye0
- Outcome
- weed populations and perhaps disease levelse0
- Direction
- altere0
Not reportedTaxonComparator
Verbatim
e0“weed management strategy can alter weed populations and perhaps disease levels”
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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.