Paper · 2001 · Indian Journal of Agronomy

Integrated phosphorus management in maize (Zea mays)-sunflower (Helianthus annuus)-cowpea (Vigna unguiculata) fodder cropping system

Kumaresn; V. S. Shanmugasundaram; T. N. Balasubramanian

4
claims
5
verbatim quotes
2
citations
1
research areas
—
Not open access

Abstract

A field experiment was conducted during 1997–98 and 1998–99 at Tamil Nadu Agricultural University, Coimbatore, to study the effect of phosphorous sources and levels in a maize (Zea mays L.)-sunflower (Helianthus annuus L.)-cowpea [Vigna unguiculata (L.) Walp.] fodder cropping system. Single superphosphate with 75% recommended level of P2O6 increased the plant height, dry-matter production and productivity of maize and sunflower crops. Single superphosphate application+microbial inoculants with 75% recommended level of P2O5 increased the growth and yield of cowpea fodder. The P2O5 application for all the 3 crops in the system increased the productivity.

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Claims 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Single superphosphate with 75% recommended P2O5 increased maize plant height, dry-matter production and productivity.

Taxon
maizeZea mayse0
Treatment
Single superphosphate with 75% recommended levele0
Outcome
plant height, dry-matter production and productivitye0
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

e0

“Single superphosphate with 75% recommended level of P2O6 increased the plant height, dry-matter production and productivity of maize and sunflower crops”

✓ located verbatim in the source · abstract, characters 285–437 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Single superphosphate with 75% recommended P2O5 increased sunflower plant height, dry-matter production and productivity.

Taxon
sunflowerHelianthus annuuse0
Treatment
Single superphosphate with 75% recommended levele0
Outcome
plant height, dry-matter production and productivitye0
Direction
increasede0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Single superphosphate with 75% recommended level of P2O6 increased the plant height, dry-matter production and productivity of maize and sunflower crops”

✓ located verbatim in the source · abstract, characters 285–437 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Single superphosphate with microbial inoculants and 75% recommended P2O5 increased growth and yield of cowpea fodder.

Treatment
Single superphosphate application+microbial inoculants with 75% recommended levele1
Outcome
growth and yielde1
Direction
increasede1

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Single superphosphate application+microbial inoculants with 75% recommended level of P2O5 increased the growth and yield of cowpea fodder”

✓ located verbatim in the source · abstract, characters 439–576 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P2O5 application increased the productivity of the maize-sunflower-cowpea system.

Taxon
maizeZea mayst0
Treatment
P2O5 applicatione2
Outcome
productivitye2
Direction
increasede2
Qualifier
for all the 3 crops in the systeme2

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 (Zea mays)”

✓ located verbatim in the source · title, characters 36–52 · show in text ↑
e2

“The P2O5 application for all the 3 crops in the system increased the productivity”

✓ located verbatim in the source · abstract, characters 578–659 · show in text ↑

phosphorus · yield · Helianthus annuus (common sunflower)Results differ

81 papers: 79 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

77 papers more in this group

See all 81 papers →

phosphorus · yield · Vigna unguiculata (cowpea)Results differ

113 papers: 107 positive, 6 negative or no effect

106 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

109 papers more in this group

See all 113 papers →

inoculation · yield · Vigna unguiculata (cowpea)Results differ

116 papers: 99 positive, 17 negative or no effect

98 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

112 papers more in this group

See all 116 papers →

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

627 papers: 549 positive, 78 negative or no effect

548 papers in the same direction as this paper · 69 in the opposite direction · 9 reporting no difference from an alternative

  1. positive
  2. no effect
  3. no effect

623 papers more in this group

See all 627 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.