Paper · 2022 · Scientific Reports

Application of humic acid and biofertilizers changes oil and phenolic compounds of fennel and fenugreek in intercropping systems

Lavin Ghaderimokri; Esmaeil Rezaei-Chiyaneh; Mahdi Ghiyasi; et al.

18
claims
20
verbatim quotes
26
citations
2
research areas
✓
Open access · cc-by

Abstract

Abstract The study investigated the effect of organic/biofertilizers in intercropping patterns on seed yield and yield components and essential oil, fatty acid, and phenolic compounds of fennel ( Foeniculum vulgare L.) and fenugreek ( Trigonella foenum-graecum L.). Experimental treatments included the application of humic acid (HA), biofertilizers (BFS), and the unfertilized control in five planting patterns [1 row fennel + 2 rows fenugreek intercropping (1F:2FG), 2 rows fennel + 2 rows fenugreek intercropping (2F:2FG), 2 rows fennel + 4 rows fenugreek intercropping (2F:4FG), and sole cropping of each species]. Sole cropping with BFS produced the highest seed yields for fennel (2233 kg ha −1 ) and fenugreek (1240 kg ha –1 ). In contrast, the 2F:2FG intercropping ratio with BFS yielded the maximum fixed oil content for fennel (17.4%) and fenugreek (8.3%). Application of HA and BFS enhanced oil yields by 66% and 75% in fennel and 40% and 57% in fenugreek, respectively. The 2F:2FG intercropping ratio with BFS produced the maximum essential oil constituents [( E )-anethole, estragole, and fenchone] in fennel. In addition, 2F:4FG with BFS and 1F:1FG with HA produced the highest unsaturated fatty acid (oleic and linoleic acids) concentration in both species. The 2F:2FG intercropping ratio with BFS and HA produced the highest chlorogenic acid and quercetin contents, respectively, in fennel. In contrast, the 2F:4FG intercropping ratio with HA produced the highest chlorogenic acid and caffeic acid contents in fenugreek. Intercropping fennel/fenugreek with BFS or HA improved the essential oil content (fennel only), fixed oil quality and quantity, and phenolic compounds and created a more sustainable cultivation system than sole cropping systems for both species under low-input conditions.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 18

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sole cropping with biofertilizers gave the highest fennel seed yield, 2233 kg ha −1.

Treatment
Sole cropping with BFSe0
Outcome
seed yieldse0
Direction
higheste0
Value
2233 kg ha −1e0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Sole cropping with BFS produced the highest seed yields for fennel (2233 kg ha −1 ) and fenugreek (1240 kg ha –1 )”

✓ located verbatim in the source · abstract, characters 619–733 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sole cropping with biofertilizers gave the highest fenugreek seed yield, 1240 kg ha –1.

Treatment
Sole cropping with BFSe0
Outcome
seed yieldse0
Direction
higheste0
Value
1240 kg ha –1e0

Not reportedComparator

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

Trigonella foenum-graecum
Trigonella foenum-graecum · TaxonYak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Sole cropping with BFS produced the highest seed yields for fennel (2233 kg ha −1 ) and fenugreek (1240 kg ha –1 )”

✓ located verbatim in the source · abstract, characters 619–733 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 2F:2FG pattern with biofertilizers maximized fennel fixed oil content at 17.4%.

Treatment
2F:2FG intercropping ratio with BFSe0
Outcome
fixed oil contente0
Direction
maximume0
Value
17.4%e0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the 2F:2FG intercropping ratio with BFS yielded the maximum fixed oil content for fennel (17.4%) and fenugreek (8.3%)”

✓ located verbatim in the source · abstract, characters 748–865 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 2F:2FG pattern with biofertilizers maximized fenugreek fixed oil content at 8.3%.

Treatment
2F:2FG intercropping ratio with BFSe0
Outcome
fixed oil contente0
Direction
maximume0
Value
8.3%e0

Not reportedComparator

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

Trigonella foenum-graecum
Trigonella foenum-graecum · TaxonYak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the 2F:2FG intercropping ratio with BFS yielded the maximum fixed oil content for fennel (17.4%) and fenugreek (8.3%)”

✓ located verbatim in the source · abstract, characters 748–865 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Humic acid enhanced fennel oil yield by 66%.

Treatment
HAe0
Outcome
oil yieldse0
Direction
enhancede0
Value
66%e0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of HA and BFS enhanced oil yields by 66% and 75% in fennel and 40% and 57% in fenugreek, respectively”

✓ located verbatim in the source · abstract, characters 867–980 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biofertilizers enhanced fennel oil yield by 75%.

Treatment
BFSe0
Outcome
oil yieldse0
Direction
enhancede0
Value
75%e0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of HA and BFS enhanced oil yields by 66% and 75% in fennel and 40% and 57% in fenugreek, respectively”

✓ located verbatim in the source · abstract, characters 867–980 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Humic acid enhanced fenugreek oil yield by 40%.

Treatment
HAe0
Outcome
oil yieldse0
Direction
enhancede0
Value
40%e0

Not reportedComparator

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

Trigonella foenum-graecum
Trigonella foenum-graecum · TaxonYak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of HA and BFS enhanced oil yields by 66% and 75% in fennel and 40% and 57% in fenugreek, respectively”

✓ located verbatim in the source · abstract, characters 867–980 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biofertilizers enhanced fenugreek oil yield by 57%.

Treatment
BFSe0
Outcome
oil yieldse0
Direction
enhancede0
Value
57%e0

Not reportedComparator

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

Trigonella foenum-graecum
Trigonella foenum-graecum · TaxonYak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of HA and BFS enhanced oil yields by 66% and 75% in fennel and 40% and 57% in fenugreek, respectively”

✓ located verbatim in the source · abstract, characters 867–980 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 2F:2FG ratio with biofertilizers maximized three fennel essential oil constituents.

Treatment
2F:2FG intercropping ratio with BFSe0
Outcome
essential oil constituents [( E )-anethole, estragole, and fenchone]e0
Direction
maximume0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The 2F:2FG intercropping ratio with BFS produced the maximum essential oil constituents [( E )-anethole, estragole, and fenchone] in fennel”

✓ located verbatim in the source · abstract, characters 982–1121 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 2F:4FG pattern with biofertilizers gave the highest unsaturated fatty acid concentration in fennel and fenugreek.

Treatment
2F:4FG with BFSe0
Outcome
unsaturated fatty acid (oleic and linoleic acids) concentratione0
Direction
higheste0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“2F:4FG with BFS and 1F:1FG with HA produced the highest unsaturated fatty acid (oleic and linoleic acids) concentration in both species”

✓ located verbatim in the source · abstract, characters 1136–1271 · show in text ↑
e1

“fennel ( Foeniculum vulgare L.) and fenugreek ( Trigonella foenum-graecum L.)”

✓ located verbatim in the source · abstract, characters 187–264 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 1F:1FG pattern with humic acid gave the highest unsaturated fatty acid concentration in fenugreek.

Treatment
1F:1FG with HAe0
Outcome
unsaturated fatty acid (oleic and linoleic acids) concentratione0
Direction
higheste0

Not reportedComparator

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

Trigonella foenum-graecum
Trigonella foenum-graecum · TaxonYak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“2F:4FG with BFS and 1F:1FG with HA produced the highest unsaturated fatty acid (oleic and linoleic acids) concentration in both species”

✓ located verbatim in the source · abstract, characters 1136–1271 · show in text ↑
e1

“fennel ( Foeniculum vulgare L.) and fenugreek ( Trigonella foenum-graecum L.)”

✓ located verbatim in the source · abstract, characters 187–264 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 2F:2FG ratio with biofertilizers gave the highest fennel chlorogenic acid content.

Treatment
2F:2FG intercropping ratio with BFSe0
Outcome
chlorogenic acide0
Direction
higheste0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The 2F:2FG intercropping ratio with BFS and HA produced the highest chlorogenic acid and quercetin contents, respectively, in fennel”

✓ located verbatim in the source · abstract, characters 1273–1405 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 2F:2FG ratio with humic acid gave the highest fennel quercetin content.

Treatment
2F:2FG intercropping ratio with BFS and HAe0
Outcome
quercetin contentse0
Direction
higheste0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The 2F:2FG intercropping ratio with BFS and HA produced the highest chlorogenic acid and quercetin contents, respectively, in fennel”

✓ located verbatim in the source · abstract, characters 1273–1405 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 2F:4FG ratio with humic acid gave the highest fenugreek chlorogenic and caffeic acid contents.

Treatment
2F:4FG intercropping ratio with HAe0
Outcome
chlorogenic acid and caffeic acid contentse0
Direction
higheste0

Not reportedComparator

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

Trigonella foenum-graecum
Trigonella foenum-graecum · TaxonYak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the 2F:4FG intercropping ratio with HA produced the highest chlorogenic acid and caffeic acid contents in fenugreek”

✓ located verbatim in the source · abstract, characters 1420–1535 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping with biofertilizers or humic acid improved fennel essential oil content compared with sole cropping.

Treatment
Intercropping fennel/fenugreek with BFS or HAe0
Outcome
essential oil contente0
Direction
improvede0
Qualifier
under low-input conditionse0
Comparator
sole cropping systemse0

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Intercropping fennel/fenugreek with BFS or HA improved the essential oil content (fennel only), fixed oil quality and quantity, and phenolic compounds and created a more sustainable cultivation system than sole cropping systems for both species under low-input conditions”

✓ located verbatim in the source · abstract, characters 1537–1808 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping with biofertilizers or humic acid improved fennel fixed oil quality and quantity and phenolic compounds relative to sole cropping.

Treatment
Intercropping fennel/fenugreek with BFS or HAe0
Outcome
fixed oil quality and quantity, and phenolic compoundse0
Direction
improvede0
Comparator
sole cropping systemse0

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Intercropping fennel/fenugreek with BFS or HA improved the essential oil content (fennel only), fixed oil quality and quantity, and phenolic compounds and created a more sustainable cultivation system than sole cropping systems for both species under low-input conditions”

✓ located verbatim in the source · abstract, characters 1537–1808 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping with biofertilizers or humic acid improved fenugreek fixed oil quality and quantity and phenolic compounds relative to sole cropping.

Treatment
Intercropping fennel/fenugreek with BFS or HAe0
Outcome
fixed oil quality and quantity, and phenolic compoundse0
Direction
improvede0
Comparator
sole cropping systemse0

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

Trigonella foenum-graecum
Trigonella foenum-graecum · TaxonYak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Intercropping fennel/fenugreek with BFS or HA improved the essential oil content (fennel only), fixed oil quality and quantity, and phenolic compounds and created a more sustainable cultivation system than sole cropping systems for both species under low-input conditions”

✓ located verbatim in the source · abstract, characters 1537–1808 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors concluded that intercropping with biofertilizers or humic acid created a more sustainable cultivation system than sole cropping under low-input conditions.

Outcome
more sustainable cultivation systeme0
Comparator
sole cropping systemse0

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

Trigonella foenum-graecum
Trigonella foenum-graecum · TaxonYak · CC BY-SA 3.0 · Wikimedia Commons ↗
Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Intercropping fennel/fenugreek with BFS or HA improved the essential oil content (fennel only), fixed oil quality and quantity, and phenolic compounds and created a more sustainable cultivation system than sole cropping systems for both species under low-input conditions”

✓ located verbatim in the source · abstract, characters 1537–1808 · show in text ↑

intercropping · quality: oil · Anethum foeniculum (fennel)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. no effect
See all 2 papers →

other · quality: oil · Trigonella foenum-graecum (fenugreek)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

2 in the opposite direction

  1. no effect
  2. no effect
See all 3 papers →

inoculation · molecular: metabolites · Anethum foeniculum (fennel)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. no effect
  3. positive
See all 4 papers →

intercropping · yield · Trigonella foenum-graecum (fenugreek)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

3 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

intercropping · yield · Anethum foeniculum (fennel)Positive and negative results

7 papers: 4 positive, 3 negative or no effect

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

  1. negative
  2. negative
  3. negative

3 papers more in this group

See all 7 papers →

inoculation · quality: oil · Anethum foeniculum (fennel)Positive and negative results

12 papers: 11 positive, 1 negative or no effect

10 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

inoculation · yield · Anethum foeniculum (fennel)Positive and negative results

17 papers: 16 positive, 1 negative or no effect

15 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

13 papers more in this group

See all 17 papers →

inoculation · yield · Trigonella foenum-graecum (fenugreek)Positive and negative results

41 papers: 38 positive, 3 negative or no effect

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

  1. negative
  2. no effect
  3. negative

37 papers more in this group

See all 41 papers →

8 of 14 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.