Paper · 2025 · Revista de la Facultad de Agronomía

Effect of fulvic acid on the growth of hydroponic pea (Pisum sativum L.) microgreens

Aldo Gutiérrez; Martha Balandrán; Rosa Yañez; et al.

15
claims
30
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

Fulvic acid is a widely recognized biostimulant due to its benefits in traditional crops; however, its application in hydroponic systems, particularly in microgreen production, is not well documented. This study evaluated the effect of fulvic acid on the growth of hydroponic pea microgreens (Pisum sativum L.). The experimental design was completely randomized and consisted of four treatments (n=5): nutrient solution (NS), fulvic acid solution 0.01 % (FA), NS + FA, and water (control). After 12 days, growth and biochemical parameters were measured. The results showed that NS and NS+FA treatments significantly increased stem length (7.73 cm and 7.28 cm), fresh weight (0.613 g and 0.618 g), and yield (6.15 kg.m-2) compared to the FA treatment or control. The FA treatment increased stem diameter (2.38 mm) but did not significantly increase biomass. Biochemical analysis showed that FA and control had higher nitrate content, while NS and NS+FA reduced nitrate accumulation. Antioxidant capacity, chlorophyll content, and color index were similar among treatments. However, the pH increased with the application of fulvic acid. Fulvic acid alone moderately improved growth but was less effective than the nutrient solution. The combination of fulvic acid with a complete nutrient solution did not produce additive effects, highlighting the importance of balanced nutrition in hydroponic microgreen production.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 15

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nutrient solution significantly increased stem length to 7.73 cm versus fulvic acid or water.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
NSe0
Outcome
stem lengthe0
Direction
increasede0
Value
7.73 cme0
Comparator
FA treatment or controle0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“NS and NS+FA treatments significantly increased stem length (7.73 cm and 7.28 cm), fresh weight (0.613 g and 0.618 g), and yield (6.15 kg.m-2) compared to the FA treatment or control”

✓ located verbatim in the source · abstract, characters 578–760 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nutrient solution plus fulvic acid significantly increased stem length to 7.28 cm.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
NS+FAe0
Outcome
stem lengthe0
Direction
increasede0
Value
7.28 cme0
Comparator
FA treatment or controle0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“NS and NS+FA treatments significantly increased stem length (7.73 cm and 7.28 cm), fresh weight (0.613 g and 0.618 g), and yield (6.15 kg.m-2) compared to the FA treatment or control”

✓ located verbatim in the source · abstract, characters 578–760 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nutrient solution significantly increased fresh weight to 0.613 g.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
NSe0
Outcome
fresh weighte0
Direction
increasede0
Value
0.613 ge0
Comparator
FA treatment or controle0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“NS and NS+FA treatments significantly increased stem length (7.73 cm and 7.28 cm), fresh weight (0.613 g and 0.618 g), and yield (6.15 kg.m-2) compared to the FA treatment or control”

✓ located verbatim in the source · abstract, characters 578–760 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nutrient solution plus fulvic acid significantly increased fresh weight to 0.618 g.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
NS+FAe0
Outcome
fresh weighte0
Direction
increasede0
Value
0.618 ge0
Comparator
FA treatment or controle0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“NS and NS+FA treatments significantly increased stem length (7.73 cm and 7.28 cm), fresh weight (0.613 g and 0.618 g), and yield (6.15 kg.m-2) compared to the FA treatment or control”

✓ located verbatim in the source · abstract, characters 578–760 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nutrient solution increased yield to 6.15 kg.m-2.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
NSe0
Outcome
yielde0
Direction
increasede0
Value
6.15 kg.m-2e0
Comparator
FA treatment or controle0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“NS and NS+FA treatments significantly increased stem length (7.73 cm and 7.28 cm), fresh weight (0.613 g and 0.618 g), and yield (6.15 kg.m-2) compared to the FA treatment or control”

✓ located verbatim in the source · abstract, characters 578–760 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nutrient solution plus fulvic acid increased yield to 6.15 kg.m-2.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
NS+FAe0
Outcome
yielde0
Direction
increasede0
Value
6.15 kg.m-2e0
Comparator
FA treatment or controle0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“NS and NS+FA treatments significantly increased stem length (7.73 cm and 7.28 cm), fresh weight (0.613 g and 0.618 g), and yield (6.15 kg.m-2) compared to the FA treatment or control”

✓ located verbatim in the source · abstract, characters 578–760 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fulvic acid increased stem diameter to 2.38 mm.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
FA treatmente0
Outcome
stem diametere0
Direction
increasede0
Value
2.38 mme0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The FA treatment increased stem diameter (2.38 mm) but did not significantly increase biomass”

✓ located verbatim in the source · abstract, characters 762–855 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Fulvic acid did not significantly increase biomass.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
FA treatmente0
Outcome
biomasse0
Direction
did not significantly increasee0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The FA treatment increased stem diameter (2.38 mm) but did not significantly increase biomass”

✓ located verbatim in the source · abstract, characters 762–855 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Fulvic acid yielded higher nitrate content.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
FAe0
Outcome
nitrate contente0
Direction
highere0
Comparator
NSe0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Biochemical analysis showed that FA and control had higher nitrate content, while NS and NS+FA reduced nitrate accumulation”

✓ located verbatim in the source · abstract, characters 857–980 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The water control had higher nitrate content.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
controle0
Outcome
nitrate contente0
Direction
highere0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Biochemical analysis showed that FA and control had higher nitrate content, while NS and NS+FA reduced nitrate accumulation”

✓ located verbatim in the source · abstract, characters 857–980 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nutrient solution reduced nitrate accumulation.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
NSe0
Outcome
nitrate accumulatione0
Direction
reducede0
Comparator
FAe0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Biochemical analysis showed that FA and control had higher nitrate content, while NS and NS+FA reduced nitrate accumulation”

✓ located verbatim in the source · abstract, characters 857–980 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nutrient solution plus fulvic acid reduced nitrate accumulation.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
NS+FAe0
Outcome
nitrate accumulatione0
Direction
reducede0
Comparator
FAe0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Biochemical analysis showed that FA and control had higher nitrate content, while NS and NS+FA reduced nitrate accumulation”

✓ located verbatim in the source · abstract, characters 857–980 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Antioxidant capacity, chlorophyll content and color index were similar across treatments.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Outcome
Antioxidant capacity, chlorophyll content, and color indexe0
Direction
similare0
Comparator
treatmentse0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Antioxidant capacity, chlorophyll content, and color index were similar among treatments”

✓ located verbatim in the source · abstract, characters 982–1070 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Fulvic acid increased pH.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
application of fulvic acide0
Outcome
pHe0
Direction
increasede0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the pH increased with the application of fulvic acid”

✓ located verbatim in the source · abstract, characters 1081–1133 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Combining fulvic acid with nutrient solution had no additive effect.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
combination of fulvic acid with a complete nutrient solutione0
Outcome
additive effectse0
Direction
did not producee0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The combination of fulvic acid with a complete nutrient solution did not produce additive effects”

✓ located verbatim in the source · abstract, characters 1231–1328 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 55–71 · show in text ↑

fertilization · nutrient: content · Lathyrus oleraceus (pea)Positive and negative results

36 papers: 33 positive, 3 negative or no effect

32 papers in the same direction as this paper · 3 in the opposite direction

  1. no effect
  2. negative
  3. negative

32 papers more in this group

See all 36 papers →

fertilization · growth · Lathyrus oleraceus (pea)Positive and negative results

97 papers: 86 positive, 11 negative or no effect

85 papers in the same direction as this paper · 11 in the opposite direction

  1. no effect
  2. negative
  3. negative

93 papers more in this group

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fertilization · yield · Lathyrus oleraceus (pea)Positive and negative results

240 papers: 216 positive, 24 negative or no effect

215 papers in the same direction as this paper · 23 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

236 papers more in this group

See all 240 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.