Paper · 1986 · UA Campus Repository (The University of Arizona)

The Relative Influences of Moisture and Nitrogen Fertilizer on Sorghum Development for Grain and Forage under Full Season Growth

Yahya Refay; Robert L. Voigt

3
claims
3
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

Three high-yielding and three low-yielding grain sorghum hybrids were grown for a full season for grain yield and total dry weight of forage with two levels of irrigation (dry and wet) and two levels of nitrogen (0 and 100 lbs /acre). The experiment was conducted at the University of Arizona Marana Agricultural Center. The combined high nitrogen fertilizer and high water irrigation increased grain yield and total dry matter of sorghum over the dry moisture condition and no nitrogen fertilizer application more than the applied increases of nitrogen fertilizer or irrigation water alone as expected. Both high- and low-yielding groups of sorghum hybrids had the same basic relative percentage potential for increased grain yield from additional nitrogen fertilizer under either wet or dry conditions.

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Claims 3

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined high nitrogen and high irrigation increased sorghum grain yield more than either input alone relative to dry, unfertilized conditions.

Taxon
sorghumSorghume0
Treatment
combined high nitrogen fertilizer and high water irrigatione0
Outcome
grain yielde0
Direction
increasede0
Comparator
dry moisture condition and no nitrogen fertilizer applicatione0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The combined high nitrogen fertilizer and high water irrigation increased grain yield and total dry matter of sorghum over the dry moisture condition and no nitrogen fertilizer application more than the applied increases of nitrogen fertilizer or irrigation water alone as expected.”

✓ located verbatim in the source · abstract, characters 321–603 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined high nitrogen and high irrigation increased sorghum total dry matter more than either input alone relative to dry, unfertilized conditions.

Taxon
sorghumSorghume0
Treatment
combined high nitrogen fertilizer and high water irrigatione0
Outcome
total dry mattere0
Direction
increasede0
Comparator
dry moisture condition and no nitrogen fertilizer applicatione0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The combined high nitrogen fertilizer and high water irrigation increased grain yield and total dry matter of sorghum over the dry moisture condition and no nitrogen fertilizer application more than the applied increases of nitrogen fertilizer or irrigation water alone as expected.”

✓ located verbatim in the source · abstract, characters 321–603 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

High- and low-yielding sorghum hybrid groups had the same relative percentage potential for grain yield increase from added nitrogen under wet or dry conditions.

Taxon
sorghumSorghume0
Material
high- and low-yielding groups of sorghum hybridse0
Treatment
additional nitrogen fertilizere0
Outcome
grain yielde0
Direction
same basic relative percentage potentiale0
Qualifier
under either wet or dry conditionse0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Both high- and low-yielding groups of sorghum hybrids had the same basic relative percentage potential for increased grain yield from additional nitrogen fertilizer under either wet or dry conditions.”

✓ located verbatim in the source · abstract, characters 604–804 · show in text ↑

fertilization · growth · SorghumResults differ

120 papers: 104 positive, 16 negative or no effect

103 papers in the same direction as this paper · 16 in the opposite direction

  1. negative
  2. negative
  3. no effect

116 papers more in this group

See all 120 papers →

irrigation · growth · SorghumPositive and negative results

51 papers: 31 positive, 20 negative or no effect

30 papers in the same direction as this paper · 20 in the opposite direction

  1. negative
  2. negative
  3. no effect

47 papers more in this group

See all 51 papers →

irrigation · yield · SorghumPositive and negative results

131 papers: 94 positive, 37 negative or no effect

93 papers in the same direction as this paper · 36 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

127 papers more in this group

See all 131 papers →

fertilization · yield · SorghumPositive and negative results

446 papers: 418 positive, 28 negative or no effect

417 papers in the same direction as this paper · 21 in the opposite direction · 7 reporting no difference from an alternative

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

442 papers more in this group

See all 446 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.