Abstract
Potato late blight – PLB is the most destructive foliar fungal disease for the crop in Southern Brazil. Organic farmers are in the urge to find ways to minimize losses due to the disease. Thus, the main objective of this study was to evaluate the effect of mulching on potato crop on late blight epidemic reduction using soil mulching. Two experiments were installed for the spring planting, at Lapa, PR. Treatments were with mulching (60 t/ha fresh weight, plant cover composition was mainly of ryegrass, oats, mixed with wild radish) and no mulching. Cultivars Ágata (susceptible) and BRS Ana (moderately resistant) were used in each experiment. Randomized complete blocks with 4 reps was the experimental design. PLB severity was weekly assessed visually on plots to estimate the area under late blight progress curves (AULBPC) for ANOVA. Plot size was of 6 ten-meter long rows, 0.8 m apart. Harvest was done at the 4 internal rows. There was a significant reduction of the AULBPC for the mulching treatment for both cultivars tested. Mulching also influenced positively commercial yield. There was a significant reduction in weed incidence for the mulching treatment as well. These experiments are under way for the Fall season planting.
Abstract from the paper’s OpenAlex record; open copy licensed other-oa.
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Claims 3
Claim · model-written summary
Mulching significantly reduced the area under the late blight progress curve (AULBPC) relative to no mulching for both potato cultivars.
- Taxon
- potatoes
Solanum tuberosumt0 - Material
- both cultivarse0
- Treatment
- mulching treatmente0
- Interactor
- late blightt0pathogen
- Outcome
- AULBPCe0
- Direction
- reductione0
- Comparator
- no mulchinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a significant reduction of the AULBPC for the mulching treatment for both cultivars tested”
e1“and no mulching”
t0“late blight epidemics on potatoes”
Claim · model-written summary
Mulching positively influenced commercial potato yield.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- Mulchinge2
- Outcome
- commercial yielde2
- Direction
- positivelye2
- Comparator
- no mulchinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Mulching also influenced positively commercial yield”
e1“and no mulching”
t0“late blight epidemics on potatoes”
Claim · model-written summary
Mulching significantly reduced weed incidence relative to no mulching.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- mulching treatmente3
- Interactor
- weede3weed
- Outcome
- weed incidencee3
- Direction
- reductione3
- Comparator
- no mulchinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“There was a significant reduction in weed incidence for the mulching treatment as well”
e1“and no mulching”
t0“late blight epidemics on potatoes”
The same questions in other papers
mulching · yield · Solanum tuberosum (potato)Results differ
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See all 10 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.