Paper · 2010 · The Pakistan Journal of Agricultural Sciences

EFFECT OF FERTILIZER LEVELS AND PLANT DENSITIES ON YIELD AND PROTEIN CONTENTS OF AUTUMN PLANTED MAIZE

Muhammad Asif Rafiq; Asghar Ali; Muhammad Asghar Malik; et al.

8
claims
13
verbatim quotes
66
citations
3
research areas
—
Not open access

Abstract

-1 and 0 kg Zn ha -1 and crop was sown at plant density of 57100 plants ha -1 . Increasing fertilizer levels and plant densities linearly increased plant height and grain yield. Application of Zinc accelerated tasseling and silking of maize crop, however the application of nitrogen had no significant effect on tasseling and silking. The fertilizer levels and plant densities also significantly affected protein contents of maize grain. Application of nitrogen at higher levels improved protein contents of grain however, opposite was true for protein contents of grains collected from the crop sown under higher plant densities. It was concluded that application of fertilizer at 250 kg N ha -1 and 15 kg Zn ha -1 and the sowing of crop at plant density of 99900 plants ha -1 showed

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Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher fertilizer levels increased maize plant height and grain yield.

Taxon
MAIZEZea mayst0
Treatment
fertilizer levelse0
Outcome
plant height and grain yielde0
Direction
increasede0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“MAIZE”

✓ located verbatim in the source · title, characters 96–101 · show in text ↑
e0

“Increasing fertilizer levels and plant densities linearly increased plant height and grain yield”

✓ located verbatim in the source · abstract, characters 80–176 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher plant densities increased maize plant height and grain yield.

Taxon
MAIZEZea mayst0
Treatment
plant densitiese0
Outcome
plant height and grain yielde0
Direction
increasede0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“MAIZE”

✓ located verbatim in the source · title, characters 96–101 · show in text ↑
e0

“Increasing fertilizer levels and plant densities linearly increased plant height and grain yield”

✓ located verbatim in the source · abstract, characters 80–176 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc application accelerated maize tasseling and silking.

Taxon
maizeZea mayse0
Treatment
Zince0
Outcome
tasseling and silkinge0
Direction
acceleratede0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of Zinc accelerated tasseling and silking of maize crop”

✓ located verbatim in the source · abstract, characters 178–245 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen application had no significant effect on maize tasseling and silking.

Taxon
MAIZEZea mayst0
Treatment
nitrogene0
Outcome
tasseling and silkinge0
Direction
no significant effecte0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“application of nitrogen had no significant effect on tasseling and silking”

✓ located verbatim in the source · abstract, characters 259–333 · show in text ↑
t0

“MAIZE”

✓ located verbatim in the source · title, characters 96–101 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Fertilizer levels significantly affected maize grain protein content.

Taxon
maizeZea mayse0
Treatment
fertilizer levelse0
Outcome
protein contents of maize graine0

Not reportedComparatorDirection

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The fertilizer levels and plant densities also significantly affected protein contents of maize grain”

✓ located verbatim in the source · abstract, characters 335–436 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Plant density significantly affected maize grain protein content.

Taxon
maizeZea mayse0
Treatment
plant densitiese0
Outcome
protein contents of maize graine0

Not reportedComparatorDirection

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The fertilizer levels and plant densities also significantly affected protein contents of maize grain”

✓ located verbatim in the source · abstract, characters 335–436 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher nitrogen levels improved maize grain protein content.

Taxon
MAIZEZea mayst0
Treatment
nitrogen at higher levelse0
Outcome
protein contents of graine0
Direction
improvede0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“MAIZE”

✓ located verbatim in the source · title, characters 96–101 · show in text ↑
e0

“Application of nitrogen at higher levels improved protein contents of grain”

✓ located verbatim in the source · abstract, characters 438–513 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher plant density reduced maize grain protein content.

Taxon
MAIZEZea mayst0
Treatment
higher plant densitiese0
Outcome
protein contents of grainse0

Not reportedComparatorDirection

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“MAIZE”

✓ located verbatim in the source · title, characters 96–101 · show in text ↑
e0

“opposite was true for protein contents of grains collected from the crop sown under higher plant densities”

✓ located verbatim in the source · abstract, characters 523–629 · show in text ↑

zinc atom · phenology · Zea mays (maize)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

nitrogen · phenology · Zea mays (maize)Results differ

44 papers: 29 positive, 15 negative or no effect

14 papers in the same direction as this paper · 29 in the opposite direction

  1. positive
  2. positive
  3. positive

40 papers more in this group

See all 44 papers →

density · quality: protein · Zea mays (maize)Positive and negative results

33 papers: 19 positive, 14 negative or no effect

13 papers in the same direction as this paper · 19 in the opposite direction

  1. negative
  2. negative
  3. positive

29 papers more in this group

See all 33 papers →

nitrogen · quality: protein · Zea mays (maize)Positive and negative results

181 papers: 164 positive, 17 negative or no effect

163 papers in the same direction as this paper · 14 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
  2. positive
  3. no effect

177 papers more in this group

See all 181 papers →

density · yield · Zea mays (maize)Positive and negative results

658 papers: 519 positive, 139 negative or no effect

518 papers in the same direction as this paper · 132 in the opposite direction · 7 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive

654 papers more in this group

See all 658 papers →

fertilization · yield · Zea mays (maize)Positive and negative results

3,908 papers: 3,485 positive, 423 negative or no effect

3,484 papers in the same direction as this paper · 338 in the opposite direction · 85 reporting no difference from an alternative

  1. negative
  2. positive
  3. positive

3,904 papers more in this group

See all 3,908 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.