Paper · 1997 · University of Khartoum Journal of Agricultural Sciences

Effect of nitrogen and phosphorus fertilizers on growth and yield of some graminaceous forages

Awad Abusuwar

6
claims
6
verbatim quotes
1
citations
1
research areas
—
Not open access

Abstract

Abstract : An experiment was conducted for two consecutive seasons (1987/88 and 1988/89) at the Demonstration Farm of the University of Khartoum in Shambat to test the response of some graminaceous forages to nitrogen and phosphorus fertilizers and to examine the residual effects of these fertilizers on ratoon yield. The tested crops were Abu Sabein (Sorghum bicolor (L.) Moench), sudangrass (Sorghum sudanense), Pioneer 988 (Sorghum bicolor x Sorghum sudanense), and napiergrass (Pennisetum purpureum). F our levels of fertilizer combinations of urea and superphosphate, namely 0N0P (control), 0N2P, 2N0P and 2N2P were used and arranged in a randomized complete block design with three replicates. Nitrogen fertilizer significantly improved growth and productivity of the graminaceous forages, whereas phosphorus had no effect on growth attributes but it significantly improved the productivity in the second. season. Among the graminaceous forages, napiergrass outyielded the others due to its high tillering capacity.

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Claims 6

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen fertilizer significantly improved forage growth.

Taxon
graminaceous foragese0
Treatment
Nitrogen fertilizere0
Outcome
growthe0
Direction
improvede0

Not reportedComparator

Verbatim

e0

“Nitrogen fertilizer significantly improved growth and productivity of the graminaceous forages”

✓ located verbatim in the source · abstract, characters 701–794 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen fertilizer significantly improved forage productivity.

Taxon
graminaceous foragese0
Treatment
Nitrogen fertilizere0
Outcome
productivitye0
Direction
improvede0

Not reportedComparator

Verbatim

e0

“Nitrogen fertilizer significantly improved growth and productivity of the graminaceous forages”

✓ located verbatim in the source · abstract, characters 701–794 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Phosphorus had no reported effect on forage growth attributes.

Treatment
phosphoruse0
Outcome
growth attributese0
Direction
no effecte0

Not reportedTaxonComparator

Verbatim

e0

“phosphorus had no effect on growth attributes”

✓ located verbatim in the source · abstract, characters 804–849 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Phosphorus significantly improved forage productivity in the second season.

Treatment
phosphoruse0
Outcome
productivitye0
Direction
improvede0
Qualifier
second. seasone0

Not reportedTaxonComparator

Verbatim

e0

“phosphorus had no effect on growth attributes but it significantly improved the productivity in the second. season.”

✓ located verbatim in the source · abstract, characters 804–918 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Napiergrass outyielded the other tested forages.

Taxon
napiergrassCenchrus purpureuse0
Outcome
outyieldede0
Direction
outyieldede0
Comparator
the otherse0

Not reportedMaterial

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

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Among the graminaceous forages, napiergrass outyielded the others due to its high tillering capacity.”

✓ located verbatim in the source · abstract, characters 919–1020 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors attributed higher napiergrass yield to high tillering capacity.

Taxon
napiergrassCenchrus purpureuse0
Organ / stage
tillering capacitye0
Outcome
outyieldede0

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

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“napiergrass outyielded the others due to its high tillering capacity”

✓ located verbatim in the source · abstract, characters 951–1019 · show in text ↑

phosphorus · yield · Cenchrus purpureus (elephant grass)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 →

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.