Paper · 2022 · Journal of Pharmaceutical Negative Results

Effect of Fulvic Acid and Seaweed on the Nutrient uptake and Some Soil Chemical Properties

Yasser Al-Eezzi; Hassan Al-Alawy; B Al-Bandawy; et al.

17
claims
34
verbatim quotes
2
citations
2
research areas
✓
Open access

Abstract

A field experiment was conducted in the Mandali of Diyala governorate during the fall season 2021 to study the effect of fulvic acid by adding five levels (control, 150 kg ha-1, 300 kg ha-1, 2.5 g L-1 and 5 g L-1) and seaweed by foliar application (control, 3 ml L-1 and 6 ml L-1) in the growth and yield of broccoli and some soil characteristics. The experiment was carried out according to a randomized complete block design (RCBD) as a factorial experiment with three .The results showed that the levels of fulvic acid were superior in most of the studied traits compared to the control treatment and the intraction between fulvic acid and seaweed in all studied traits compared to the comparison treatment. The superiority of the level of ground addition with fulvic acid at a concentration of 300 kg ha -1 (F2) increased of availability of pH, EC, nitrogen , phosphorous and potassium 7.08 , 2.01 dS m-1 33.96 mg kg-1 soil and 40.17 mg kg-1 soil and 273.5 mg kg-1 soil respectively, (F3) exceeded concentration of phosphorous and potassium in the flower disk with a value 0.42% and 2.915% , respectively, and the level (F4) exceeded in the concentration of nitrogen and sulfur in the flower disc with a value of 4.807%, 0.374 respectively, as for spraying seaweed extract, (S2) exceeded in most of the studied characteristics such as the available of pH , nitrogen concentration , phosphorous concentration, potassium , sulfur concentrations in flower disc with a value of 7.13, 33.55 mg kg-1 soil and 34.56 mg kg-1 soil ,2.924%, 0.353 % respectively while the control treatment gave the lowest values for all studied traits.

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Claims 17

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fulvic acid levels were superior to the control for most studied traits.

Treatment
fulvic acide0
Outcome
superior in most of the studied traitse0
Direction
superiore0
Comparator
control treatmente0

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“levels of fulvic acid were superior in most of the studied traits compared to the control treatment”

✓ located verbatim in the source · abstract, characters 500–599 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The fulvic acid and seaweed interaction was superior to the comparison treatment for all studied traits.

Treatment
fulvic acid and seaweede0
Outcome
all studied traitse0
Comparator
comparison treatmente0

Not reportedDirection

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the intraction between fulvic acid and seaweed in all studied traits compared to the comparison treatment”

✓ located verbatim in the source · abstract, characters 604–709 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 300 kg ha -1 ground applied fulvic acid, soil pH was 7.08.

Treatment
ground addition with fulvic acid at a concentration of 300 kg ha -1e0
Outcome
pHe0
Direction
increasede0
Value
7.08e0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“ground addition with fulvic acid at a concentration of 300 kg ha -1 (F2) increased of availability of pH, EC, nitrogen , phosphorous and potassium 7.08 , 2.01 dS m-1 33.96 mg kg-1 soil and 40.17 mg kg-1 soil and 273.5 mg kg-1 soil respectively”

✓ located verbatim in the source · abstract, characters 743–986 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 300 kg ha -1 ground applied fulvic acid, soil EC was 2.01 dS m-1.

Treatment
ground addition with fulvic acid at a concentration of 300 kg ha -1e0
Outcome
ECe0
Direction
increasede0
Value
2.01 dS m-1e0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“ground addition with fulvic acid at a concentration of 300 kg ha -1 (F2) increased of availability of pH, EC, nitrogen , phosphorous and potassium 7.08 , 2.01 dS m-1 33.96 mg kg-1 soil and 40.17 mg kg-1 soil and 273.5 mg kg-1 soil respectively”

✓ located verbatim in the source · abstract, characters 743–986 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 300 kg ha -1 ground applied fulvic acid, available soil nitrogen was 33.96 mg kg-1 soil.

Treatment
ground addition with fulvic acid at a concentration of 300 kg ha -1e0
Outcome
nitrogene0
Direction
increasede0
Value
33.96 mg kg-1 soile0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“ground addition with fulvic acid at a concentration of 300 kg ha -1 (F2) increased of availability of pH, EC, nitrogen , phosphorous and potassium 7.08 , 2.01 dS m-1 33.96 mg kg-1 soil and 40.17 mg kg-1 soil and 273.5 mg kg-1 soil respectively”

✓ located verbatim in the source · abstract, characters 743–986 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 300 kg ha -1 ground applied fulvic acid, available soil phosphorous was 40.17 mg kg-1 soil.

Treatment
ground addition with fulvic acid at a concentration of 300 kg ha -1e0
Outcome
phosphorouse0
Direction
increasede0
Value
40.17 mg kg-1 soile0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“ground addition with fulvic acid at a concentration of 300 kg ha -1 (F2) increased of availability of pH, EC, nitrogen , phosphorous and potassium 7.08 , 2.01 dS m-1 33.96 mg kg-1 soil and 40.17 mg kg-1 soil and 273.5 mg kg-1 soil respectively”

✓ located verbatim in the source · abstract, characters 743–986 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 300 kg ha -1 ground applied fulvic acid, available soil potassium was 273.5 mg kg-1 soil.

Treatment
ground addition with fulvic acid at a concentration of 300 kg ha -1e0
Outcome
potassiume0
Direction
increasede0
Value
273.5 mg kg-1 soile0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“ground addition with fulvic acid at a concentration of 300 kg ha -1 (F2) increased of availability of pH, EC, nitrogen , phosphorous and potassium 7.08 , 2.01 dS m-1 33.96 mg kg-1 soil and 40.17 mg kg-1 soil and 273.5 mg kg-1 soil respectively”

✓ located verbatim in the source · abstract, characters 743–986 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

F3 treatment yielded flower disc phosphorous concentration of 0.42%.

Organ / stage
flower diske0
Treatment
F3e0
Outcome
concentration of phosphorouse0
Direction
exceedede0
Value
0.42%e0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“(F3) exceeded concentration of phosphorous and potassium in the flower disk with a value 0.42% and 2.915% , respectively”

✓ located verbatim in the source · abstract, characters 988–1108 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

F3 treatment yielded flower disc potassium concentration of 2.915%.

Organ / stage
flower diske0
Treatment
F3e0
Outcome
potassiume0
Direction
exceedede0
Value
2.915%e0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“(F3) exceeded concentration of phosphorous and potassium in the flower disk with a value 0.42% and 2.915% , respectively”

✓ located verbatim in the source · abstract, characters 988–1108 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

F4 treatment yielded flower disc nitrogen concentration of 4.807%.

Organ / stage
flower disce0
Treatment
F4e0
Outcome
concentration of nitrogene0
Direction
exceedede0
Value
4.807%e0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“(F4) exceeded in the concentration of nitrogen and sulfur in the flower disc with a value of 4.807%, 0.374 respectively”

✓ located verbatim in the source · abstract, characters 1124–1243 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

F4 treatment yielded flower disc sulfur concentration of 0.374.

Organ / stage
flower disce0
Treatment
F4e0
Outcome
sulfure0
Direction
exceedede0
Value
0.374e0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“(F4) exceeded in the concentration of nitrogen and sulfur in the flower disc with a value of 4.807%, 0.374 respectively”

✓ located verbatim in the source · abstract, characters 1124–1243 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seaweed extract S2 yielded pH of 7.13.

Treatment
spraying seaweed extract, (S2)e0
Outcome
pHe0
Direction
exceedede0
Value
7.13e0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“spraying seaweed extract, (S2) exceeded in most of the studied characteristics such as the available of pH , nitrogen concentration , phosphorous concentration, potassium , sulfur concentrations in flower disc with a value of 7.13, 33.55 mg kg-1 soil and 34.56 mg kg-1 soil ,2.924%, 0.353 % respectively”

✓ located verbatim in the source · abstract, characters 1252–1555 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seaweed extract S2 yielded nitrogen concentration of 33.55 mg kg-1 soil.

Treatment
spraying seaweed extract, (S2)e0
Outcome
nitrogen concentratione0
Direction
exceedede0
Value
33.55 mg kg-1 soile0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“spraying seaweed extract, (S2) exceeded in most of the studied characteristics such as the available of pH , nitrogen concentration , phosphorous concentration, potassium , sulfur concentrations in flower disc with a value of 7.13, 33.55 mg kg-1 soil and 34.56 mg kg-1 soil ,2.924%, 0.353 % respectively”

✓ located verbatim in the source · abstract, characters 1252–1555 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seaweed extract S2 yielded phosphorous concentration of 34.56 mg kg-1 soil.

Treatment
spraying seaweed extract, (S2)e0
Outcome
phosphorous concentratione0
Direction
exceedede0
Value
34.56 mg kg-1 soile0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“spraying seaweed extract, (S2) exceeded in most of the studied characteristics such as the available of pH , nitrogen concentration , phosphorous concentration, potassium , sulfur concentrations in flower disc with a value of 7.13, 33.55 mg kg-1 soil and 34.56 mg kg-1 soil ,2.924%, 0.353 % respectively”

✓ located verbatim in the source · abstract, characters 1252–1555 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seaweed extract S2 yielded flower disc potassium concentration of 2.924%.

Organ / stage
flower disce0
Treatment
spraying seaweed extract, (S2)e0
Outcome
potassiume0
Direction
exceedede0
Value
2.924%e0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“spraying seaweed extract, (S2) exceeded in most of the studied characteristics such as the available of pH , nitrogen concentration , phosphorous concentration, potassium , sulfur concentrations in flower disc with a value of 7.13, 33.55 mg kg-1 soil and 34.56 mg kg-1 soil ,2.924%, 0.353 % respectively”

✓ located verbatim in the source · abstract, characters 1252–1555 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seaweed extract S2 yielded flower disc sulfur concentration of 0.353%.

Organ / stage
flower disce0
Treatment
spraying seaweed extract, (S2)e0
Outcome
sulfur concentrationse0
Direction
exceedede0
Value
0.353 %e0

Not reportedComparator

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“spraying seaweed extract, (S2) exceeded in most of the studied characteristics such as the available of pH , nitrogen concentration , phosphorous concentration, potassium , sulfur concentrations in flower disc with a value of 7.13, 33.55 mg kg-1 soil and 34.56 mg kg-1 soil ,2.924%, 0.353 % respectively”

✓ located verbatim in the source · abstract, characters 1252–1555 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The control treatment gave the lowest values for all studied traits.

Treatment
control treatmente0
Outcome
all studied traitse0
Direction
loweste0

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the control treatment gave the lowest values for all studied traits”

✓ located verbatim in the source · abstract, characters 1562–1629 · show in text ↑
t0

“broccoli”

✓ located verbatim in the source · abstract, characters 308–316 · show in text ↑

other · soil: chemistry · Brassica oleracea (wild cabbage)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. no effect
  2. positive
  3. positive
See all 4 papers →

other · molecular: metabolites · Brassica oleracea (wild cabbage)Positive and negative results

10 papers: 9 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

6 papers more in this group

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application · nutrient: content · Brassica oleracea (wild cabbage)Positive and negative results

38 papers: 36 positive, 2 negative or no effect

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

  1. positive
  2. no effect
  3. negative

34 papers more in this group

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application · molecular: metabolites · Brassica oleracea (wild cabbage)Results agree

15 papers: 15 positive, 0 negative or no effect

14 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

11 papers more in this group

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other · nutrient: content · Brassica oleracea (wild cabbage)Results agree

19 papers: 19 positive, 0 negative or no effect

18 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

15 papers more in this group

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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.