Abstract
A field experiment was performed to determine the effects of using humic acid with irrigation on quantitative and qualitative yield traits of sugar beet grown on calcareous soils in Esfaraen, located in the North-East of Iran. Treatments consisted of three levels of humic acid concentration (zero or control, 2.5 and 5 L ha-1) and the number of applications (once 45 days after planting; twice, 45 and 75 days after planting; three times, respectively 45, 75 and 105 days after planting). The effect of the two experimental factors on sugar beet yield traits such as the content of sucrose, refined sugar, molasses forming substances, root yield and refined sugar yield were evaluated. The results proved the existence of a significant interaction between humic acid concentration and the number of applications on all parameters under study. The application of humic acid caused a significant increase of sucrose, refined sugar, root yield and refined sugar yield and a reduction in molasses forming substances content, compared to the control. The increased amount of sucrose and refined sugar content in all applications in concentration of 2.5 L ha-1 humic acid was more than with 5 L ha-1. Similarly, the content of molasses forming substances showed more reduction in 2.5 L ha-1 than in 5 L ha-1 treatment. However, the results revealed that the highest root yield and refined sugar yield, as the main qualitative and quantitative parameters of sugar beet yield, were achieved by three times application of 5 L ha-1 that had 24 and 37% increase compared to control.
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Claims 7
Claim · model-written summary
Humic acid concentration and application number interacted significantly for every measured parameter.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarist0 - Treatment
- humic acid concentratione0
- Outcome
- all parameters under studye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant interaction between humic acid concentration and the number of applications on all parameters under study”
t0“Sugar Beet”
Claim · model-written summary
Humic acid increased sucrose and refined sugar content, root yield, and refined sugar yield against control.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- application of humic acide0
- Outcome
- sucrose, refined sugar, root yield and refined sugar yielde0
- Direction
- increasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of humic acid caused a significant increase of sucrose, refined sugar, root yield and refined sugar yield and a reduction in molasses forming substances content, compared to the control”
t0“Sugar Beet”
Claim · model-written summary
Humic acid reduced molasses forming substances content against control.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- application of humic acide0
- Outcome
- molasses forming substances contente0
- Direction
- reductione0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of humic acid caused a significant increase of sucrose, refined sugar, root yield and refined sugar yield and a reduction in molasses forming substances content, compared to the control”
t0“Sugar Beet”
Claim · model-written summary
Sucrose and refined sugar content increased more with 2.5 than 5 L ha-1 humic acid across applications.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- 2.5 L ha-1 humic acide0
- Outcome
- sucrose and refined sugar contente0
- Direction
- moree0
- Comparator
- 5 L ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increased amount of sucrose and refined sugar content in all applications in concentration of 2.5 L ha-1 humic acid was more than with 5 L ha-1”
t0“Sugar Beet”
Claim · model-written summary
Molasses forming substances fell more with 2.5 than 5 L ha-1 humic acid.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- 2.5 L ha-1e0
- Outcome
- content of molasses forming substancese0
- Direction
- more reductione0
- Comparator
- 5 L ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content of molasses forming substances showed more reduction in 2.5 L ha-1 than in 5 L ha-1 treatment”
t0“Sugar Beet”
Claim · model-written summary
Three applications of 5 L ha-1 humic acid gave the highest root yield, 24% above control.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- three times application of 5 L ha-1e0
- Outcome
- root yielde0
- Direction
- higheste0
- Value
- 24e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest root yield and refined sugar yield, as the main qualitative and quantitative parameters of sugar beet yield, were achieved by three times application of 5 L ha-1 that had 24 and 37% increase compared to control”
t0“Sugar Beet”
Claim · model-written summary
Three applications of 5 L ha-1 humic acid gave the highest refined sugar yield, 37% above control.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- three times application of 5 L ha-1e0
- Outcome
- refined sugar yielde0
- Direction
- higheste0
- Value
- 37%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest root yield and refined sugar yield, as the main qualitative and quantitative parameters of sugar beet yield, were achieved by three times application of 5 L ha-1 that had 24 and 37% increase compared to control”
t0“Sugar Beet”
The same questions in other papers
other · molecular: metabolites · Beta vulgaris (beet)Positive and negative results
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- positive
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See all 16 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.