Abstract
Two field experiments were conducted at a private farm in El-QantaraSharq, Ismailia Governorate, Egypt, during the 2021/22 and 2022/23 winter growing seasons. The study aimed to assess the effect of boron and potassium sources and rates on sugar beet yield quality and soil fertility. The experiments were arranged in a split-split plot design. The main plots had foliar boron (B) application (without and with 4 g B/L), while the sub-main plots had potassium sources: K-sulfate, K-silicate, and K-humate. The sub-plots had potassium rates (0, 4, 8, and 12 g/L) applied as foliar spray at three intervals: 30, 45, and 75 days after planting. Results indicated that foliar boron application led to a 17.17% decrease in soil electrical conductivity (EC) compared to without boron spraying. However, there was no significant change in pH values. The study showed a significant increase in soil available N, P, K, Fe, Mn, Zn, and B with the application of 4 g/L of boron or K-humate at a rate of 12 g/L individually. Sugar beet yield, quality and root nutrients content were notably influenced by potassium sources in the following order: K-humate > K-silicate > K-sulfate. The interaction between boron spray and potassium sources and rates had a significant effect on various parameters, with the highest values for root length (cm), fresh root weight (kg/plant), root and top yield (t/ha), protein (%),sugar content (%) and sugar yield (t/ha) achieved by foliar application of boron combined with K-humate at a rate of 12 g/L.
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Claims 7
Claim · model-written summary
Boron spray reduced soil electrical conductivity by 17.17%.
- Treatment
- foliar boron applicatione0
- Outcome
- soil electrical conductivity (EC)e0
- Direction
- decreasee0
- Value
- 17.17%e0
- Comparator
- without boron sprayinge0
Not reportedTaxon
Verbatim
e0“foliar boron application led to a 17.17% decrease in soil electrical conductivity (EC) compared to without boron spraying”
Claim · model-written summary
Boron spray did not significantly change soil pH.
- Treatment
- foliar boron applicatione0
- Outcome
- pH valuese0
- Direction
- no significant changee0
- Comparator
- without boron sprayinge0
Not reportedTaxon
Verbatim
e0“foliar boron application led to a 17.17% decrease in soil electrical conductivity (EC) compared to without boron spraying. However, there was no significant change in pH values”
Claim · model-written summary
Boron at 4 g/L increased available soil nutrients.
Not reportedTaxonComparator
Verbatim
e0“significant increase in soil available N, P, K, Fe, Mn, Zn, and B with the application of 4 g/L of boron or K-humate at a rate of 12 g/L individually”
Claim · model-written summary
K-humate at 12 g/L increased available soil nutrients.
- Treatment
- K-humate at a rate of 12 g/Le0
- Outcome
- soil available N, P, K, Fe, Mn, Zn, and Be0
- Direction
- increasee0
Not reportedTaxonComparator
Verbatim
e0“significant increase in soil available N, P, K, Fe, Mn, Zn, and B with the application of 4 g/L of boron or K-humate at a rate of 12 g/L individually”
Claim · model-written summary
Potassium sources ranked K-humate, K-silicate, then K-sulfate for beet yield, quality and root nutrients.
- Taxon
- Sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- potassium sourcese0
- Outcome
- yield, quality and root nutrients contente0
- Direction
- K-humate > K-silicate > K-sulfatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet yield, quality and root nutrients content were notably influenced by potassium sources in the following order: K-humate > K-silicate > K-sulfate”
Claim · model-written summary
Boron combined with K-humate at 12 g/L gave the highest root length, root weight, and root and top yields.
- Taxon
- Sugar BeetBeta vulgaris subsp. vulgarist0
- Treatment
- foliar application of boron combined with K-humate at a rate of 12 g/Le0
- Outcome
- root length (cm), fresh root weight (kg/plant), root and top yield (t/ha)e0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest values for root length (cm), fresh root weight (kg/plant), root and top yield (t/ha), protein (%),sugar content (%) and sugar yield (t/ha) achieved by foliar application of boron combined with K-humate at a rate of 12 g/L”
t0“Sugar Beet”
Claim · model-written summary
Boron combined with K-humate at 12 g/L gave the highest protein, sugar content and sugar yield.
- Taxon
- Sugar BeetBeta vulgaris subsp. vulgarist0
- Treatment
- foliar application of boron combined with K-humate at a rate of 12 g/Le0
- Outcome
- protein (%),sugar content (%) and sugar yield (t/ha)e0
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“protein (%),sugar content (%) and sugar yield (t/ha) achieved by foliar application of boron combined with K-humate at a rate of 12 g/L”
e1“highest values for root length (cm), fresh root weight (kg/plant), root and top yield (t/ha), protein (%),sugar content (%) and sugar yield (t/ha)”
t0“Sugar Beet”
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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.