Paper · 1972 · Journal of the Science of Food and Agriculture

Evaluation of barley as a source of protein for chicks. I. Variety and nitrogen application in relation to protein content and amino‐acid composition of the seed

A. A. Woodham; S. Savic; W. R. Hepburn

5
claims
9
verbatim quotes
17
citations
2
research areas
—
Not open access

Abstract

Abstract Seventy‐six samples of barley embracing 14 varieties grown under various conditions of nitrogen fertilisation in different locations in the U.K. were examined for nitrogen content and 14 samples were analysed for their total content of amino acids other than tryptophan. Top dressing with nitrogenous fertilisers during growth resulted in the production of grain with a higher nitrogen content as well as an increased overall yield of nitrogen/hectare. The growth locality had a greater effect upon the nitrogen content of the harvested seed than did the application of nitrogen to the growing crop. Lysine content was inversely proportional to crude protein content for barleys containing between 8 and 11% crude protein and, in consequence, within this range the yield of lysine/ton of grain was of the same order.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen top dressing increased barley grain nitrogen content.

Treatment
Top dressing with nitrogenous fertiliserse0
Outcome
nitrogen contente0
Direction
highere0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Top dressing with nitrogenous fertilisers during growth resulted in the production of grain with a higher nitrogen content as well as an increased overall yield of nitrogen/hectare”

✓ located verbatim in the source · abstract, characters 280–460 · show in text ↑
t0

“barley”

✓ located verbatim in the source · title, characters 14–20 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen top dressing increased overall nitrogen yield per hectare.

Treatment
Top dressing with nitrogenous fertiliserse0
Outcome
yield of nitrogen/hectaree0
Direction
increasede0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Top dressing with nitrogenous fertilisers during growth resulted in the production of grain with a higher nitrogen content as well as an increased overall yield of nitrogen/hectare”

✓ located verbatim in the source · abstract, characters 280–460 · show in text ↑
t0

“barley”

✓ located verbatim in the source · title, characters 14–20 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Growth locality affected harvested seed nitrogen content more than nitrogen application.

Outcome
nitrogen content of the harvested seede0
Direction
greatere0
Comparator
application of nitrogene0
Setting
growth localitye0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The growth locality had a greater effect upon the nitrogen content of the harvested seed than did the application of nitrogen to the growing crop”

✓ located verbatim in the source · abstract, characters 462–607 · show in text ↑
t0

“barley”

✓ located verbatim in the source · title, characters 14–20 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Lysine content varied inversely with crude protein content in barley containing 8 to 11% crude protein.

Taxon
barleysHordeume0
Compound
crude proteine0
Outcome
Lysine contente0
Direction
inversely proportionale0
Qualifier
between 8 and 11% crude proteine0

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

Hordeum
Hordeum · TaxonMatt Lavin · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Lysine content was inversely proportional to crude protein content for barleys containing between 8 and 11% crude protein”

✓ located verbatim in the source · abstract, characters 609–730 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Within that protein range, lysine yield per ton of grain was of the same order.

Outcome
yield of lysine/ton of graine0
Direction
same ordere0
Qualifier
within this rangee0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“within this range the yield of lysine/ton of grain was of the same order”

✓ located verbatim in the source · abstract, characters 752–824 · show in text ↑
t0

“barley”

✓ located verbatim in the source · title, characters 14–20 · show in text ↑

fertilization · nutrient: content · Hordeum vulgare (barley)Positive and negative results

120 papers: 96 positive, 24 negative or no effect

95 papers in the same direction as this paper · 21 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
    In barley, equivalent mid-May topdressings consistently increased grain nitrogen content compared with seedbed dressings.

    Nitrogen fertilizers for spring barley and wheat · 1958 · compared with 0·25 or 0·5 cwt. N/acre broadcast on the seedbed or combine-drilled

    Same directionCited by this paper

  2. no effect
  3. no effect

116 papers more in this group

See all 120 papers →

fertilization · yield · Hordeum vulgare (barley)Positive and negative results

550 papers: 473 positive, 77 negative or no effect

472 papers in the same direction as this paper · 66 in the opposite direction · 11 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

546 papers more in this group

See all 550 papers →

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.