Abstract
The effects of irrigation and rate of humic acid on concentration of nutrients and yield and quality of flue-cured tobacco (Nicotiana tabacum L.) in dry land were studied by field experiment. The results showed that application of humic acid could increase the content of N, P, K, Fe in tobacco plant. With the increasing of humic acid, the yield, high quality leaf ratio and the content of nicotine in the cured leaves increased, the content of reducing sugar decreased, but the difference in the content of total nitrogen was not significant. It was also found that yield and superior leaf ratio of the leaves increased significantly with irrigation, but the interaction of irrigation with humic acid rates on the content of nutrients and chemical components of tobacco was not significant.
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Claims 8
Claim · model-written summary
Humic acid increased plant N, P, K and Fe content.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- application of humic acide0
- Outcome
- content of N, P, K, Fee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of humic acid could increase the content of N, P, K, Fe in tobacco plant”
Claim · model-written summary
Increasing humic acid raised tobacco yield.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- humic acide0
- Outcome
- yielde0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increasing of humic acid, the yield, high quality leaf ratio and the content of nicotine in the cured leaves increased”
t0“Flue-cured Tobacco”
Claim · model-written summary
Increasing humic acid raised high quality leaf ratio.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- humic acide0
- Outcome
- high quality leaf ratioe0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increasing of humic acid, the yield, high quality leaf ratio and the content of nicotine in the cured leaves increased”
t0“Flue-cured Tobacco”
Claim · model-written summary
Increasing humic acid raised nicotine content in cured leaves.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- humic acide0
- Outcome
- content of nicotine in the cured leavese0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increasing of humic acid, the yield, high quality leaf ratio and the content of nicotine in the cured leaves increased”
t0“Flue-cured Tobacco”
Claim · model-written summary
Increasing humic acid reduced reducing sugar content.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- humic acide0
- Outcome
- content of reducing sugare0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increasing of humic acid, the yield, high quality leaf ratio and the content of nicotine in the cured leaves increased, the content of reducing sugar decreased”
t0“Flue-cured Tobacco”
Claim · model-written summary
Total nitrogen content showed no significant difference across humic acid rates.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- humic acide0
- Outcome
- content of total nitrogene0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increasing of humic acid, the yield, high quality leaf ratio and the content of nicotine in the cured leaves increased, the content of reducing sugar decreased, but the difference in the content of total nitrogen was not significant”
t0“Flue-cured Tobacco”
Claim · model-written summary
Irrigation significantly increased yield and superior leaf ratio.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- irrigatione0
- Outcome
- yield and superior leaf ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield and superior leaf ratio of the leaves increased significantly with irrigation”
t0“Flue-cured Tobacco”
Claim · model-written summary
The irrigation by humic acid interaction was not significant for nutrients and chemical components.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- irrigation with humic acid ratese0
- Outcome
- content of nutrients and chemical componentse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the interaction of irrigation with humic acid rates on the content of nutrients and chemical components of tobacco was not significant”
The same questions in other papers
irrigation · yield · Nicotiana tabacum (tobacco)Positive and negative results
16 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- negative
- negative
19 papers more in this group
See all 23 papers →other · nutrient: content · Nicotiana tabacum (tobacco)Results agree
16 papers in the same direction as this paper
- positive
- positive
- positive
13 papers more in this group
See all 17 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.