Paper · 2021 · Agriculture

The Reaction of Winter Oilseed Rape to Different Foliar Fertilization with Macro- and Micronutrients

Wacław Jarecki

12
claims
24
verbatim quotes
11
citations
2
research areas
✓
Open access · cc-by

Abstract

Foliar fertilization provides cultivated plants with the necessary nutrients during the growing season. The conducted field experiment was aimed at comparing the effectiveness of different variants of foliar fertilization applied in the cultivation of winter oilseed rape (Brassica napus L.), cultivar ‘ES Cesario’. The experimental factors were: A (control), B (YaraVita Brassitrel Pro), C (YaraVita Brassitrel Pro and YaraVita Thiotrac), D (YaraVita Brassitrel Pro and YaraVita Bortrac), E (YaraVita Brassitrel Pro and YaraVita Bortrac and YaraVita Thiotrac) and F (YaraVita Thiotrac). Weather conditions were variable over the years of the study and had a modifying effect on most of the tested parameters. Intensive foliar fertilization (variants D and E) resulted in a significant increase in the number of pods per plant, seed and fat yields, and SPAD (soil plant analysis development) and LAI (leaf area index) indices compared to the control. The protein yield was the highest after fertilizer applications in variants C and E. The use of YaraVita Thiotrac alone (variant F) did not provide the expected results. Foliar fertilizers applied in variant D increased Gs (leaf stomatal conductance) measurements and fat content in seeds but decreased TSW and seed protein content. It was shown that intensive foliar fertilization (variants D and E) increased seed boron content compared to YaraVita Thiotrac fertilization and the control. Fat and protein yields were strongly positively correlated with seed yield (r = 0.93 and r = 0.71, respectively). The best economic effect was obtained after applying foliar fertilization in variants D and E; therefore, they can be recommended for agricultural practice.

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 12

Associationobservedoriginal resultmeasured

Claim · model-written summary

Weather modified most tested parameters.

Taxon
Winter Oilseed RapeBrassica napust0
Outcome
most of the tested parameterse0
Setting
over the years of the studye0

Not reportedDirection

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Weather conditions were variable over the years of the study and had a modifying effect on most of the tested parameters.”

✓ located verbatim in the source · abstract, characters 588–709 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Variants D and E significantly increased pods per plant, seed yield, and fat yield versus control.

Taxon
Winter Oilseed RapeBrassica napust0
Treatment
Intensive foliar fertilization (variants D and E)e0
Outcome
number of pods per plant, seed and fat yieldse0
Direction
increasee0
Comparator
the controle0

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Intensive foliar fertilization (variants D and E) resulted in a significant increase in the number of pods per plant, seed and fat yields, and SPAD (soil plant analysis development) and LAI (leaf area index) indices compared to the control.”

✓ located verbatim in the source · abstract, characters 710–950 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Variants D and E significantly increased SPAD and LAI indices versus control.

Taxon
Winter Oilseed RapeBrassica napust0
Treatment
Intensive foliar fertilization (variants D and E)e0
Outcome
SPAD (soil plant analysis development) and LAI (leaf area index) indicese0
Direction
increasee0
Comparator
the controle0

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Intensive foliar fertilization (variants D and E) resulted in a significant increase in the number of pods per plant, seed and fat yields, and SPAD (soil plant analysis development) and LAI (leaf area index) indices compared to the control.”

✓ located verbatim in the source · abstract, characters 710–950 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Protein yield was highest with variants C and E.

Taxon
Winter Oilseed RapeBrassica napust0
Treatment
fertilizer applications in variants C and Ee0
Outcome
protein yielde0
Direction
higheste0

Not reportedComparator

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The protein yield was the highest after fertilizer applications in variants C and E.”

✓ located verbatim in the source · abstract, characters 951–1035 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Variant F did not provide the expected results.

Taxon
Winter Oilseed RapeBrassica napust0
Treatment
YaraVita Thiotrac alone (variant F)e0
Outcome
expected resultse0

Not reportedComparatorDirection

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The use of YaraVita Thiotrac alone (variant F) did not provide the expected results.”

✓ located verbatim in the source · abstract, characters 1036–1120 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Variant D increased leaf stomatal conductance and seed fat content.

Taxon
Winter Oilseed RapeBrassica napust0
Treatment
Foliar fertilizers applied in variant De0
Outcome
Gs (leaf stomatal conductance) measurements and fat content in seedse0
Direction
increasede0

Not reportedComparator

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar fertilizers applied in variant D increased Gs (leaf stomatal conductance) measurements and fat content in seeds but decreased TSW and seed protein content.”

✓ located verbatim in the source · abstract, characters 1121–1283 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Variant D decreased TSW and seed protein content.

Taxon
Winter Oilseed RapeBrassica napust0
Treatment
Foliar fertilizers applied in variant De0
Outcome
TSW and seed protein contente0
Direction
decreasede0

Not reportedComparator

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar fertilizers applied in variant D increased Gs (leaf stomatal conductance) measurements and fat content in seeds but decreased TSW and seed protein content.”

✓ located verbatim in the source · abstract, characters 1121–1283 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Variants D and E increased seed boron versus Thiotrac and control.

Taxon
Winter Oilseed RapeBrassica napust0
Treatment
intensive foliar fertilization (variants D and E)e0
Outcome
seed boron contente0
Direction
increasede0
Comparator
YaraVita Thiotrac fertilization and the controle0

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“intensive foliar fertilization (variants D and E) increased seed boron content compared to YaraVita Thiotrac fertilization and the control.”

✓ located verbatim in the source · abstract, characters 1302–1441 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Fat yield correlated positively with seed yield (r = 0.93).

Taxon
Winter Oilseed RapeBrassica napust0
Outcome
Fate0
Direction
positively correlatede0
Value
r = 0.93e0
Comparator
seed yielde0

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Fat and protein yields were strongly positively correlated with seed yield (r = 0.93 and r = 0.71, respectively).”

✓ located verbatim in the source · abstract, characters 1442–1555 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Protein yield correlated positively with seed yield (r = 0.71).

Taxon
Winter Oilseed RapeBrassica napust0
Outcome
protein yieldse0
Direction
positively correlatede0
Value
r = 0.71e0
Comparator
seed yielde0

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Fat and protein yields were strongly positively correlated with seed yield (r = 0.93 and r = 0.71, respectively).”

✓ located verbatim in the source · abstract, characters 1442–1555 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Variants D and E gave the best economic effect.

Taxon
Winter Oilseed RapeBrassica napust0
Treatment
foliar fertilization in variants D and Ee0
Outcome
economic effecte0
Direction
beste0

Not reportedComparator

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The best economic effect was obtained after applying foliar fertilization in variants D and E”

✓ located verbatim in the source · abstract, characters 1556–1649 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend variants D and E for agricultural practice.

Taxon
Winter Oilseed RapeBrassica napust0
Outcome
recommended for agricultural practicee0

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“they can be recommended for agricultural practice.”

✓ located verbatim in the source · abstract, characters 1662–1712 · show in text ↑
t0

“Winter Oilseed Rape”

✓ located verbatim in the source · title, characters 16–35 · show in text ↑

fertilization · quality: protein · Brassica napus (oilseed rape)Results differ

29 papers: 21 positive, 8 negative or no effect

20 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. positive
  3. no effect

25 papers more in this group

See all 29 papers →

fertilization · physiology: gas exchange · Brassica napus (oilseed rape)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. no effect
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

application · physiology: gas exchange · Brassica napus (oilseed rape)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

application · physiology: pigments · Brassica napus (oilseed rape)Positive and negative results

17 papers: 15 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive

13 papers more in this group

See all 17 papers →

fertilization · physiology: pigments · Brassica napus (oilseed rape)Positive and negative results

17 papers: 13 positive, 4 negative or no effect

12 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

13 papers more in this group

See all 17 papers →

application · nutrient: content · Brassica napus (oilseed rape)Positive and negative results

18 papers: 15 positive, 3 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

14 papers more in this group

See all 18 papers →

application · yield · Brassica napus (oilseed rape)Positive and negative results

93 papers: 85 positive, 8 negative or no effect

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

  1. positive
  2. positive
  3. positive

89 papers more in this group

See all 93 papers →

fertilization · nutrient: content · Brassica napus (oilseed rape)Positive and negative results

109 papers: 95 positive, 14 negative or no effect

94 papers in the same direction as this paper · 13 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

105 papers more in this group

See all 109 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.