Abstract
Sugar beet (Beta vulgaris L.), accounting for 30 percent of the total world sugar production, maybe affected by soil fertility and nutrition supply in terms of both its yield and quality. Humic substances have a direct and indirect effect on plants, is it possible to raise this effect by integrate it with mineral nitrogen fertilization in saline soils? Two field experiments were conducted during two seasons. The treatments in split-plot design included without humic substances, soil-addition of humic acid and soil-addition of fulvic acid as main plots and 71, 142 and 213 kg N ha−1 as subplots. Soil-additions of humic substances increased root length, top and root content of α-N and K, the concentration of sucrose, sugar loss and sugar recovery and yield of sucrose, sugar loss and sugar recovery but reduced root content of Na and sugar quality index percentage. Increasing nitrogen fertilization level from 71 to 213 kg N ha−1 significantly increased all traits, except sucrose, sugar recovery and sugar quality index percentage. The highest root yield values were with soil-addition of humic acid with 213 kg N ha−1. On the other hand, the soil-addition of humic acid and fulvic acid with 213 kg N ha−1 increased the recoverable sugar yield of sugar beet by 16.1 and 15.2%, respectively. Therefore, it is preferable to use soil-addition of humic acid at 30 kg ha−1 with 213 kg N ha−1 to obtain the highest yield from the root yield and the extracted sugar yield, especially in saline soils.
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Claims 11
Claim · model-written summary
Soil-additions of humic substances increased sugar beet root length compared with no humic substances.
- Taxon
- Sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- Soil-additions of humic substancese1
- Outcome
- root lengthe1
- Direction
- increasede1
- Comparator
- without humic substancese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet (Beta vulgaris L.)”
e1“Soil-additions of humic substances increased root length, top and root content of α-N and K”
e2“The treatments in split-plot design included without humic substances”
Claim · model-written summary
Soil-additions of humic substances increased the top and root content of alpha-N and K in sugar beet.
- Taxon
- Sugar beetBeta vulgaris subsp. vulgarise0
- Organ / stage
- top and roote1
- Treatment
- Soil-additions of humic substancese1
- Outcome
- content of α-N and Ke1
- Direction
- increasede1
- Comparator
- without humic substancese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet (Beta vulgaris L.)”
e1“Soil-additions of humic substances increased root length, top and root content of α-N and K”
e2“The treatments in split-plot design included without humic substances”
Claim · model-written summary
Soil-additions of humic substances increased the concentration of sucrose, sugar loss and sugar recovery in sugar beet.
- Taxon
- Sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- Soil-additions of humic substancese3
- Outcome
- the concentration of sucrose, sugar loss and sugar recoverye3
- Direction
- increasede3
- Comparator
- without humic substancese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet (Beta vulgaris L.)”
e3“Soil-additions of humic substances increased root length, top and root content of α-N and K, the concentration of sucrose, sugar loss and sugar recovery”
e2“The treatments in split-plot design included without humic substances”
Claim · model-written summary
Soil-additions of humic substances increased the yield of sucrose, sugar loss and sugar recovery in sugar beet.
- Taxon
- Sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- Soil-additions of humic substancese4
- Outcome
- yield of sucrose, sugar loss and sugar recoverye4
- Direction
- increasede4
- Comparator
- without humic substancese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet (Beta vulgaris L.)”
e4“Soil-additions of humic substances increased root length, top and root content of α-N and K, the concentration of sucrose, sugar loss and sugar recovery and yield of sucrose, sugar loss and sugar recovery”
e2“The treatments in split-plot design included without humic substances”
Claim · model-written summary
Soil-additions of humic substances reduced the root content of Na in sugar beet grown in saline soil.
- Taxon
- Sugar beetBeta vulgaris subsp. vulgarise0
- Organ / stage
- roote5
- Treatment
- Soil-additions of humic substancese5
- Outcome
- root content of Nae5
- Direction
- reducede5
- Comparator
- without humic substancese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet (Beta vulgaris L.)”
e5“Soil-additions of humic substances increased root length, top and root content of α-N and K, the concentration of sucrose, sugar loss and sugar recovery and yield of sucrose, sugar loss and sugar recovery but reduced root content of Na and sugar quality index percentage”
e2“The treatments in split-plot design included without humic substances”
Claim · model-written summary
Soil-additions of humic substances reduced the sugar quality index percentage of sugar beet.
- Taxon
- Sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- Soil-additions of humic substancese5
- Outcome
- sugar quality index percentagee5
- Direction
- reducede5
- Comparator
- without humic substancese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet (Beta vulgaris L.)”
e5“Soil-additions of humic substances increased root length, top and root content of α-N and K, the concentration of sucrose, sugar loss and sugar recovery and yield of sucrose, sugar loss and sugar recovery but reduced root content of Na and sugar quality index percentage”
e2“The treatments in split-plot design included without humic substances”
Claim · model-written summary
Increasing nitrogen fertilization from 71 to 213 kg N ha−1 significantly increased sugar beet traits, except sucrose, sugar recovery and sugar quality index percentage.
- Taxon
- Sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- nitrogen fertilizatione6
- Outcome
- all traitse6
- Direction
- increasede6
- Qualifier
- except sucrose, sugar recovery and sugar quality index percentagee6
- Comparator
- from 71e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet (Beta vulgaris L.)”
e6“Increasing nitrogen fertilization level from 71 to 213 kg N ha−1 significantly increased all traits, except sucrose, sugar recovery and sugar quality index percentage”
Claim · model-written summary
Soil-addition of humic acid with 213 kg N ha−1 gave the highest sugar beet root yield values.
- Taxon
- Sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- soil-addition of humic acid with 213 kg N ha−1e7
- Outcome
- root yield valuese7
- Direction
- higheste7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet (Beta vulgaris L.)”
e7“The highest root yield values were with soil-addition of humic acid with 213 kg N ha−1”
Claim · model-written summary
Soil-addition of humic acid at 30 kg ha−1 with 213 kg N ha−1 is preferable for the highest root and extracted sugar yield in saline soils.
- Taxon
- Sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- soil-addition of humic acid at 30 kg ha−1 with 213 kg N ha−1e1
- Outcome
- root yield and the extracted sugar yielde1
- Setting
- saline soilse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet (Beta vulgaris L.)”
e1“Therefore, it is preferable to use soil-addition of humic acid at 30 kg ha−1 with 213 kg N ha−1 to obtain the highest yield from the root yield and the extracted sugar yield, especially in saline soils”
Claim · model-written summary
Soil-addition of humic acid with 213 kg N ha−1 increased sugar beet recoverable sugar yield by 16.1%.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Treatment
- soil-addition of humic acide1
- Outcome
- recoverable sugar yielde1
- Direction
- increasede1
- Value
- 16.1e1
- Qualifier
- with 213 kg N ha−1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the soil-addition of humic acid and fulvic acid with 213 kg N ha−1 increased the recoverable sugar yield of sugar beet by 16.1 and 15.2%, respectively”
Claim · model-written summary
Fulvic acid with 213 kg N ha−1 increased sugar beet recoverable sugar yield by 15.2%.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Treatment
- fulvic acide1
- Outcome
- recoverable sugar yielde1
- Direction
- increasede1
- Value
- 15.2e1
- Qualifier
- with 213 kg N ha−1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the soil-addition of humic acid and fulvic acid with 213 kg N ha−1 increased the recoverable sugar yield of sugar beet by 16.1 and 15.2%, respectively”
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