Paper · 2025 · Horticulturae

Effect of Biostimulants on the Productivity and Nutritional Value of White Cabbage (Brassica oleracea L. var. capitata)

Danguolė Juškevičienė; Audrius Radzevičius; Rasa Karklelienė

6
claims
12
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by

Abstract

The study examines the influence of humic and amino acid applications on the productivity and nutritional value of white cabbage (Brassica oleracea L. var. capitata). Two cultivars, ‘Bagočiai’ and ‘Kamienna glowa’, were investigated at the Lithuanian Research Centre for Agriculture and Forestry during the 2020–2021 period. The experiment was carried out in the experimental field where four different combinations of humic and amino acids were applied. Productivity and biochemical parameters were evaluated. It was determined that the application of amino and humic acids influenced the productivity of white cabbage. The obtained results showed that biostimulants enhanced the yield of heads up to 25% for cultivar ‘Bagočiai’ and 35% for ‘Kamienna Głowa’ compared with the control. The highest productivity, reaching 72.5–78.6 t ha−1 of cultivar ‘Kamienna Głowa’ and 74.9 t ha−1 to 76.2 t ha−1 of ‘Bagočiai’, was determined in the variants where amino acids and a combination of humic + amino acid were applied. The amount of vitamin C increased when plants were treated with an amino acid solution, while the highest crude protein content was found when plants were treated with humic acid.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biostimulants increased Bagočiai head yield by up to 25% versus control.

Taxon
white cabbage (Brassica oleracea L. var. capitata)Brassica oleracea var. capitatat0
Material
‘Bagočiai’e0
Treatment
biostimulantse0
Outcome
yield of headse0
Direction
enhancede0
Value
25%e0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“biostimulants enhanced the yield of heads up to 25% for cultivar ‘Bagočiai’ and 35% for ‘Kamienna Głowa’ compared with the control”

✓ located verbatim in the source · abstract, characters 654–784 · show in text ↑
t0

“white cabbage (Brassica oleracea L. var. capitata)”

✓ located after whitespace/quote normalisation · title, characters 69–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biostimulants increased Kamienna Głowa head yield by up to 35% versus control.

Taxon
white cabbage (Brassica oleracea L. var. capitata)Brassica oleracea var. capitatat0
Material
‘Kamienna Głowa’e0
Treatment
biostimulantse0
Outcome
yield of headse0
Direction
enhancede0
Value
35%e0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“biostimulants enhanced the yield of heads up to 25% for cultivar ‘Bagočiai’ and 35% for ‘Kamienna Głowa’ compared with the control”

✓ located verbatim in the source · abstract, characters 654–784 · show in text ↑
t0

“white cabbage (Brassica oleracea L. var. capitata)”

✓ located after whitespace/quote normalisation · title, characters 69–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Amino acid and combined treatments gave Kamienna Głowa the highest productivity of 72.5–78.6 t ha−1.

Taxon
white cabbage (Brassica oleracea L. var. capitata)Brassica oleracea var. capitatat0
Material
‘Kamienna Głowa’e0
Treatment
amino acids and a combination of humic + amino acide0
Outcome
productivitye0
Direction
higheste0
Value
72.5–78.6 t ha−1e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest productivity, reaching 72.5–78.6 t ha−1 of cultivar ‘Kamienna Głowa’ and 74.9 t ha−1 to 76.2 t ha−1 of ‘Bagočiai’, was determined in the variants where amino acids and a combination of humic + amino acid were applied”

✓ located verbatim in the source · abstract, characters 786–1014 · show in text ↑
t0

“white cabbage (Brassica oleracea L. var. capitata)”

✓ located after whitespace/quote normalisation · title, characters 69–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Amino acid and combined treatments gave Bagočiai the highest productivity of 74.9 to 76.2 t ha−1.

Taxon
white cabbage (Brassica oleracea L. var. capitata)Brassica oleracea var. capitatat0
Material
‘Bagočiai’e0
Treatment
amino acids and a combination of humic + amino acide0
Outcome
productivitye0
Direction
higheste0
Value
74.9 t ha−1 to 76.2 t ha−1e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest productivity, reaching 72.5–78.6 t ha−1 of cultivar ‘Kamienna Głowa’ and 74.9 t ha−1 to 76.2 t ha−1 of ‘Bagočiai’, was determined in the variants where amino acids and a combination of humic + amino acid were applied”

✓ located verbatim in the source · abstract, characters 786–1014 · show in text ↑
t0

“white cabbage (Brassica oleracea L. var. capitata)”

✓ located after whitespace/quote normalisation · title, characters 69–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Amino acid solution increased cabbage vitamin C amount.

Taxon
white cabbage (Brassica oleracea L. var. capitata)Brassica oleracea var. capitatat0
Treatment
amino acid solutione0
Outcome
amount of vitamin Ce0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The amount of vitamin C increased when plants were treated with an amino acid solution”

✓ located verbatim in the source · abstract, characters 1016–1102 · show in text ↑
t0

“white cabbage (Brassica oleracea L. var. capitata)”

✓ located after whitespace/quote normalisation · title, characters 69–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Humic acid treatment gave the highest crude protein content.

Taxon
white cabbage (Brassica oleracea L. var. capitata)Brassica oleracea var. capitatat0
Treatment
humic acide0
Outcome
crude protein contente0
Direction
higheste0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the highest crude protein content was found when plants were treated with humic acid”

✓ located verbatim in the source · abstract, characters 1110–1194 · show in text ↑
t0

“white cabbage (Brassica oleracea L. var. capitata)”

✓ located after whitespace/quote normalisation · title, characters 69–119 · show in text ↑

amino acid · quality: phytochemicals · Brassica oleracea (wild cabbage)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

amino acid · yield · Brassica oleracea (wild cabbage)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

other · yield · Brassica oleracea (wild cabbage)Results differ

37 papers: 33 positive, 4 negative or no effect

32 papers in the same direction as this paper · 4 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

33 papers more in this group

See all 37 papers →

other · quality: protein · Brassica oleracea (wild cabbage)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 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.