Abstract
Onion is a highly consumed vegetable crop in many countries, being a vital component of every dish. Recent studies indicated that different plant residues’ and animal manure-based biochars have strong impacts on the growth and development of plants. However, the impact of these biochars on disease suppression remains elusive. Therefore, this two-year study assessed the impact of animal and plant residues-based biochars on the suppression of Stemphylium leaf blight (SLB) of onion and productivity of the crop. Three pyrolyzed biochars cotton sticks, wheat straw and poultry litter) were used in the study. Biochars were prepared in the laboratory and applied to soil prior to crop sowing in same concentration during both years of study. Poultry litter biochar had the highest impact on allometric traits and productivity of onion, and successfully reduced SLB severity. The control treatment had the lowest productivity and the highest disease severity during both years of the study. The remaining biochars (cotton sticks and wheat straw) had moderate influence on growth and development of onion plants. The disease severity was higher compared to poultry litter; however, it was lower in both biochars than control treatment. It is concluded that different animal and plant residues-based biochars could be used to improve plant health. Nonetheless, the response of these biochars will be crop-specific. Poultry litter biochar can be successfully used to suppress SLB in onion and productivity of the crop. Nevertheless, the actual mechanisms involved in disease suppression warrant further investigation.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Poultry litter biochar had the greatest impact on onion allometric traits and productivity.
- Taxon
- onion
Allium cepae0 - Treatment
- Poultry litter biochare0
- Outcome
- allometric traits and productivitye0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Poultry litter biochar had the highest impact on allometric traits and productivity of onion”
Claim · model-written summary
Poultry litter biochar reduced onion Stemphylium leaf blight severity.
- Taxon
- onionAllium cepae0
- Treatment
- Poultry litter biochare0
- Interactor
- Stemphylium
Stemphyliume1pathogen - Outcome
- SLB severitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Poultry litter biochar had the highest impact on allometric traits and productivity of onion, and successfully reduced SLB severity”
e1“Stemphylium leaf blight (SLB) of onion”
Claim · model-written summary
Untreated control onions had the lowest productivity.
- Taxon
- onionAllium cepat0
- Outcome
- productivitye0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control treatment had the lowest productivity”
t0“onion”
Claim · model-written summary
Untreated control onions had the highest disease severity.
- Taxon
- onionAllium cepae1
- Interactor
- StemphyliumStemphyliume1pathogen
- Outcome
- disease severitye0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control treatment had the lowest productivity and the highest disease severity”
e1“Stemphylium leaf blight (SLB) of onion”
Claim · model-written summary
Cotton sticks biochar had a moderate influence on onion growth and development.
- Taxon
- onionAllium cepae0
- Treatment
- cotton stickse0
- Outcome
- growth and developmente0
- Direction
- moderate influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“remaining biochars (cotton sticks and wheat straw) had moderate influence on growth and development of onion plants”
Claim · model-written summary
Wheat straw biochar had a moderate influence on onion growth and development.
- Taxon
- onionAllium cepae0
- Treatment
- wheat strawe0
- Outcome
- growth and developmente0
- Direction
- moderate influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“remaining biochars (cotton sticks and wheat straw) had moderate influence on growth and development of onion plants”
Claim · model-written summary
Cotton sticks biochar yielded onion disease severity between poultry litter biochar and control.
- Taxon
- onionAllium cepae2
- Treatment
- cotton stickse1
- Interactor
- StemphyliumStemphyliume2pathogen
- Outcome
- disease severitye0
- Direction
- lowere0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The disease severity was higher compared to poultry litter; however, it was lower in both biochars than control treatment”
e1“remaining biochars (cotton sticks and wheat straw) had moderate influence on growth and development of onion plants”
e2“Stemphylium leaf blight (SLB) of onion”
Claim · model-written summary
Wheat straw biochar yielded onion disease severity between poultry litter biochar and control.
- Taxon
- onionAllium cepae2
- Treatment
- wheat strawe1
- Interactor
- StemphyliumStemphyliume2pathogen
- Outcome
- disease severitye0
- Direction
- lowere0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The disease severity was higher compared to poultry litter; however, it was lower in both biochars than control treatment”
e1“remaining biochars (cotton sticks and wheat straw) had moderate influence on growth and development of onion plants”
e2“Stemphylium leaf blight (SLB) of onion”
Claim · model-written summary
The authors recommend poultry litter biochar to suppress onion leaf blight and improve productivity.
- Taxon
- onionAllium cepae0
- Interactor
- StemphyliumStemphyliume1pathogen
- Outcome
- suppress SLBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Poultry litter biochar can be successfully used to suppress SLB in onion and productivity of the crop”
e1“Stemphylium leaf blight (SLB) of onion”
The same questions in other papers
biochar · yield · Allium cepa (onion)Positive and negative results
16 papers in the same direction as this paper · 4 in the opposite direction
- positive
- no effect
- no effect
17 papers more in this group
See all 21 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.