Abstract
Abstract The aim of the research was to evaluate the effect of the new humic biostimulants preparation containing fulvic acids on the growth and quality of the yield of alfalfa ( Medicago × varia T. Martyn) and cucumber ( Cucumis sativus L.). In 2025, two experiments were conducted: 1. with alfalfa – a grow room experiment, and 2. with cucumber – a field experiment. Experimental factors: I – biostimulant, II – number of applications (2 and 4 sprays). The concentration of the preparation and the number and timing of treatments are recommended by the manufacturer. Morphometric characteristics (alfalfa), marketable yield (cucumber) and chemical composition (ICP-AES method) were determined in the plant material. Application of tested biostimulant increased the value of morphometric traits of alfalfa: the length of stalks, number of shoots per plant and leaves per shoot, diameter of root collar, weight of shoot and root system per plant, weight of leaves and inflorescence per shoot. It also resulted in an increase of up to 61% in the dry weight of plants compared to the control. Moreover, it increased the concentration of potassium, magnesium, and phosphorus in the dry matter of the plant. Foliar application of the tested biostimulant to cucumbers resulted in a statistically significant increase in fruit yield of gherkin cucumbers by 24% and in total marketable yield by 12.5% compared to the control. No significant changes were observed in the dry matter, protein, phosphorus, potassium, or magnesium content in cucumber fruit. The research conducted is a preliminary step towards expanding the assessment of the effects of fulvic acid use on the characteristics of tested plants under various growing conditions.
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Claims 9
Claim · model-written summary
The tested biostimulant increased the length of stalks, number of shoots per plant and leaves per shoot in alfalfa.
- Taxon
- alfalfa
Medicago sativae1 - Treatment
- Application of tested biostimulante1
- Outcome
- the length of stalks, number of shoots per plant and leaves per shoote1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Application of tested biostimulant increased the value of morphometric traits of alfalfa: the length of stalks, number of shoots per plant and leaves per shoot, diameter of root collar, weight of shoot and root system per plant, weight of leaves and inflorescence per shoot”
Claim · model-written summary
The tested biostimulant increased root collar diameter and shoot and root system weight per plant in alfalfa.
- Taxon
- alfalfaMedicago sativae1
- Treatment
- Application of tested biostimulante1
- Outcome
- diameter of root collar, weight of shoot and root system per plante1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Application of tested biostimulant increased the value of morphometric traits of alfalfa: the length of stalks, number of shoots per plant and leaves per shoot, diameter of root collar, weight of shoot and root system per plant, weight of leaves and inflorescence per shoot”
Claim · model-written summary
The tested biostimulant increased leaf and inflorescence weight per shoot in alfalfa.
- Taxon
- alfalfaMedicago sativae1
- Treatment
- Application of tested biostimulante1
- Outcome
- weight of leaves and inflorescence per shoote1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Application of tested biostimulant increased the value of morphometric traits of alfalfa: the length of stalks, number of shoots per plant and leaves per shoot, diameter of root collar, weight of shoot and root system per plant, weight of leaves and inflorescence per shoot”
Claim · model-written summary
The tested biostimulant increased alfalfa dry weight by up to 61% compared with the control.
- Taxon
- alfalfaMedicago sativae1
- Treatment
- tested biostimulante1
- Outcome
- dry weight of plantse2
- Direction
- increasee2
- Value
- up to 61%e2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Application of tested biostimulant increased the value of morphometric traits of alfalfa: the length of stalks, number of shoots per plant and leaves per shoot, diameter of root collar, weight of shoot and root system per plant, weight of leaves and inflorescence per shoot”
e2“It also resulted in an increase of up to 61% in the dry weight of plants compared to the control”
Claim · model-written summary
The tested biostimulant increased potassium, magnesium and phosphorus concentration in alfalfa dry matter.
- Taxon
- alfalfaMedicago sativae1
- Treatment
- tested biostimulante1
- Outcome
- concentration of potassium, magnesium, and phosphoruse3
- Direction
- increasede3
- Qualifier
- in the dry matter of the plante3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Application of tested biostimulant increased the value of morphometric traits of alfalfa: the length of stalks, number of shoots per plant and leaves per shoot, diameter of root collar, weight of shoot and root system per plant, weight of leaves and inflorescence per shoot”
e3“Moreover, it increased the concentration of potassium, magnesium, and phosphorus in the dry matter of the plant”
Claim · model-written summary
Foliar application of the tested biostimulant increased gherkin cucumber fruit yield by 24% compared with the control.
- Taxon
- cucumbers
Cucumis sativuse4 - Material
- gherkin cucumberse4
- Treatment
- Foliar application of the tested biostimulante4
- Outcome
- fruit yielde4
- Direction
- increasee4
- Value
- 24%e4
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Foliar application of the tested biostimulant to cucumbers resulted in a statistically significant increase in fruit yield of gherkin cucumbers by 24% and in total marketable yield by 12.5% compared to the control”
Claim · model-written summary
Foliar application of the tested biostimulant increased total marketable cucumber yield by 12.5% compared with the control.
- Taxon
- cucumbersCucumis sativuse4
- Treatment
- Foliar application of the tested biostimulante4
- Outcome
- total marketable yielde4
- Direction
- increasee4
- Value
- 12.5%e4
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Foliar application of the tested biostimulant to cucumbers resulted in a statistically significant increase in fruit yield of gherkin cucumbers by 24% and in total marketable yield by 12.5% compared to the control”
Claim · model-written summary
The tested biostimulant did not change dry matter, protein or phosphorus content in cucumber fruit.
- Taxon
- cucumbersCucumis sativuse4
- Organ / stage
- cucumber fruite5
- Treatment
- Foliar application of the tested biostimulante4
- Outcome
- dry matter, protein, phosphoruse5
- Direction
- no_changeinferrede5
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Foliar application of the tested biostimulant to cucumbers resulted in a statistically significant increase in fruit yield of gherkin cucumbers by 24% and in total marketable yield by 12.5% compared to the control”
e5“No significant changes were observed in the dry matter, protein, phosphorus, potassium, or magnesium content in cucumber fruit”
Claim · model-written summary
The tested biostimulant did not change potassium or magnesium content in cucumber fruit.
- Taxon
- cucumbersCucumis sativuse4
- Organ / stage
- cucumber fruite5
- Treatment
- Foliar application of the tested biostimulante4
- Outcome
- potassium, or magnesiume5
- Direction
- no_changeinferrede5
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Foliar application of the tested biostimulant to cucumbers resulted in a statistically significant increase in fruit yield of gherkin cucumbers by 24% and in total marketable yield by 12.5% compared to the control”
e5“No significant changes were observed in the dry matter, protein, phosphorus, potassium, or magnesium content in cucumber fruit”
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See all 5 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.