Paper · 2017 · Zemdirbyste-Agriculture

The influence of foliar fertilization with nitrogen, sulphur, amino acids and microelements on spring wheat

Gediminas Staugaitis; Loreta Aleknavičienė; Zita Brazienė; et al.

6
claims
14
verbatim quotes
5
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

During a five year period (2011)(2012)(2013)(2014)(2015) research was carried out with spring wheat on a Bathihypogleyi-Calc(ar)ic Luvisol (LVk-gld-w) with predominant silt loam on clay loam. The main aim was to establish how different foliar fertilizers affect spring wheat when the optimum nitrogen (N), phosphorus (P), potassium (K) and sulphur (S) rates had been applied during the main fertilisation. The soil was well-drained and very high in plant-available phosphorus (P 2 O 5 ) and potassium (K 2 O), pH KCl 6.4-7.4. Each year, depending on agrochemical analyses done in spring, all treatments were applied with the same rates of mineral fertilizers. The experiments established that the foliar nutrition of spring wheat at the BBCH 29-30 stage with amino acids with amide nitrogen (Delfan 2.0 l ha -1 ) or microelements (Tradecorp Cu 0.8 kg ha -1 , Tradecorp Mn 1.0 kg ha -1 and Tradecorp Zn 1.0 kg ha -1 ) increased grain yield only in one year out of five, and ammonium sulphate (15.0 kg ha -1 ) and urea (6.7 kg ha -1 ) in two years. The average data of five years indicated that the foliar fertilisers used did not increase grain and straw yield statistically significantly and did not have significant influence on the content of crude protein and starch in grain.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar amino acids with amide nitrogen increased grain yield of spring wheat in only one year out of five.

Taxon
spring wheatTriticum aestivume0
Organ / stage
BBCH 29-30 stagee0
Treatment
amino acids with amide nitrogen (Delfan 2.0 l ha -1)e0
Outcome
grain yielde2
Direction
increasede2
Qualifier
only in one year out of fivee2

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the foliar nutrition of spring wheat at the BBCH 29-30 stage with amino acids with amide nitrogen (Delfan 2.0 l ha -1)”

✓ located after whitespace/quote normalisation · abstract, characters 693–812 · show in text ↑
e2

“increased grain yield only in one year out of five, and ammonium sulphate (15.0 kg ha -1 ) and urea (6.7 kg ha -1 ) in two years”

✓ located verbatim in the source · abstract, characters 917–1045 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar microelements increased grain yield of spring wheat in only one year out of five.

Taxon
spring wheatTriticum aestivume0
Organ / stage
BBCH 29-30 stagee0
Treatment
microelements (Tradecorp Cu 0.8 kg ha -1 , Tradecorp Mn 1.0 kg ha -1 and Tradecorp Zn 1.0 kg ha -1 )e1
Outcome
grain yielde2
Direction
increasede2
Qualifier
only in one year out of fivee2

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the foliar nutrition of spring wheat at the BBCH 29-30 stage with amino acids with amide nitrogen (Delfan 2.0 l ha -1)”

✓ located after whitespace/quote normalisation · abstract, characters 693–812 · show in text ↑
e1

“or microelements (Tradecorp Cu 0.8 kg ha -1 , Tradecorp Mn 1.0 kg ha -1 and Tradecorp Zn 1.0 kg ha -1 )”

✓ located verbatim in the source · abstract, characters 813–916 · show in text ↑
e2

“increased grain yield only in one year out of five, and ammonium sulphate (15.0 kg ha -1 ) and urea (6.7 kg ha -1 ) in two years”

✓ located verbatim in the source · abstract, characters 917–1045 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar ammonium sulphate increased grain yield of spring wheat in two years.

Taxon
spring wheatTriticum aestivume0
Organ / stage
BBCH 29-30 stagee0
Treatment
ammonium sulphate (15.0 kg ha -1 )e2
Outcome
grain yielde2
Direction
increasede2
Qualifier
in two yearse2

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the foliar nutrition of spring wheat at the BBCH 29-30 stage with amino acids with amide nitrogen (Delfan 2.0 l ha -1)”

✓ located after whitespace/quote normalisation · abstract, characters 693–812 · show in text ↑
e2

“increased grain yield only in one year out of five, and ammonium sulphate (15.0 kg ha -1 ) and urea (6.7 kg ha -1 ) in two years”

✓ located verbatim in the source · abstract, characters 917–1045 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar urea increased grain yield of spring wheat in two years.

Taxon
spring wheatTriticum aestivume0
Organ / stage
BBCH 29-30 stagee0
Treatment
urea (6.7 kg ha -1 )e2
Outcome
grain yielde2
Direction
increasede2
Qualifier
in two yearse2

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the foliar nutrition of spring wheat at the BBCH 29-30 stage with amino acids with amide nitrogen (Delfan 2.0 l ha -1)”

✓ located after whitespace/quote normalisation · abstract, characters 693–812 · show in text ↑
e2

“increased grain yield only in one year out of five, and ammonium sulphate (15.0 kg ha -1 ) and urea (6.7 kg ha -1 ) in two years”

✓ located verbatim in the source · abstract, characters 917–1045 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Foliar fertilisers did not increase grain and straw yield of spring wheat statistically significantly over five years.

Taxon
spring wheatTriticum aestivume0
Treatment
foliar fertiliserse3
Outcome
grain and straw yielde3
Direction
did not increasee3
Qualifier
average data of five yearse3

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the foliar nutrition of spring wheat at the BBCH 29-30 stage with amino acids with amide nitrogen (Delfan 2.0 l ha -1)”

✓ located after whitespace/quote normalisation · abstract, characters 693–812 · show in text ↑
e3

“The average data of five years indicated that the foliar fertilisers used did not increase grain and straw yield statistically significantly”

✓ located verbatim in the source · abstract, characters 1047–1187 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Foliar fertilisers did not significantly influence crude protein and starch content of spring wheat grain.

Taxon
spring wheatTriticum aestivume0
Treatment
foliar fertiliserse3
Outcome
content of crude protein and starch in graine4
Direction
did not have significant influencee4

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the foliar nutrition of spring wheat at the BBCH 29-30 stage with amino acids with amide nitrogen (Delfan 2.0 l ha -1)”

✓ located after whitespace/quote normalisation · abstract, characters 693–812 · show in text ↑
e3

“The average data of five years indicated that the foliar fertilisers used did not increase grain and straw yield statistically significantly”

✓ located verbatim in the source · abstract, characters 1047–1187 · show in text ↑
e4

“did not have significant influence on the content of crude protein and starch in grain”

✓ located verbatim in the source · abstract, characters 1192–1278 · show in text ↑

ammonium sulfate · yield · Triticum aestivum (wheat)Results differ

32 papers: 27 positive, 5 negative or no effect

26 papers in the same direction as this paper · 3 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

28 papers more in this group

See all 32 papers →

manganese atom · yield · Triticum aestivum (wheat)Results differ

65 papers: 61 positive, 4 negative or no effect

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

  1. no effect
  2. no effect
  3. no effect

61 papers more in this group

See all 65 papers →

copper atom · yield · Triticum aestivum (wheat)Results differ

75 papers: 63 positive, 12 negative or no effect

62 papers in the same direction as this paper · 12 in the opposite direction

  1. positive
  2. negative
  3. no effect

71 papers more in this group

See all 75 papers →

zinc atom · yield · Triticum aestivum (wheat)Results differ

511 papers: 456 positive, 55 negative or no effect

455 papers in the same direction as this paper · 49 in the opposite direction · 6 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

507 papers more in this group

See all 511 papers →

amide · yield · Triticum aestivum (wheat)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

application · quality: protein · Triticum aestivum (wheat)Positive and negative results

125 papers: 110 positive, 15 negative or no effect

14 papers in the same direction as this paper · 110 in the opposite direction

  1. positive
  2. positive
    Late soil nitrogen increased grain protein content in both wheat crops by 15%.

    Late‐Season Nitrogen Increases Improver Common and Durum Wheat Quality · 2015 · compared with control without N fertilization after the vegetative growth stage

    Opposite direction

  3. positive

121 papers more in this group

See all 125 papers →

fertilization · quality: protein · Triticum aestivum (wheat)Positive and negative results

566 papers: 501 positive, 65 negative or no effect

64 papers in the same direction as this paper · 501 in the opposite direction

  1. no effect
  2. positive
  3. positive

562 papers more in this group

See all 566 papers →

application · yield · Triticum aestivum (wheat)Positive and negative results

877 papers: 795 positive, 82 negative or no effect

81 papers in the same direction as this paper · 795 in the opposite direction

  1. positive
  2. positive
  3. positive

873 papers more in this group

See all 877 papers →

8 of 10 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.