Paper · 1975

Fertilizer placement for rainfed sorghum

Sanjoy Das; B. V. Subbiah

3
claims
5
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

Placement of nitrogen (in the form of ammonium sulphate) was most effective for sorghum yields at 15cm depth. N applications gave no further yield increases at rates above 56 kg/ha. Under the current practice of P placement at 5 cm to the side of the crop row, split applications were no more effective than single applications

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Claims 3

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen placement at 15 cm was most effective for sorghum yield.

Taxon
sorghumSorghume0
Treatment
Placement of nitrogen (in the form of ammonium sulphate)e0
Outcome
sorghum yieldse0
Direction
most effectivee0
Value
15cme0

Not reportedComparator

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

“Placement of nitrogen (in the form of ammonium sulphate) was most effective for sorghum yields at 15cm depth.”

✓ located verbatim in the source · abstract, characters 0–109 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen applications above 56 kg/ha gave no further sorghum yield increase.

Taxon
sorghumSorghumt0
Treatment
N applicationse0
Outcome
yielde0
Direction
no further yield increasese0
Qualifier
rates above 56 kg/hae0
Comparator
56 kg/hae0

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

“N applications gave no further yield increases at rates above 56 kg/ha.”

✓ located verbatim in the source · abstract, characters 110–181 · show in text ↑
t0

“sorghum”

✓ located verbatim in the source · title, characters 33–40 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Split phosphorus applications were no more effective than single applications with placement 5 cm to the side of the crop row.

Taxon
sorghumSorghumt0
Treatment
split applicationse0
Outcome
no more effectivee0
Direction
no more effectivee0
Qualifier
P placement at 5 cm to the side of the crop rowe0
Comparator
single applicationse0

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

“Under the current practice of P placement at 5 cm to the side of the crop row, split applications were no more effective than single applications”

✓ located verbatim in the source · abstract, characters 182–327 · show in text ↑
t0

“sorghum”

✓ located verbatim in the source · title, characters 33–40 · show in text ↑

ammonium sulfate · yield · SorghumResults agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

nitrogen · yield · SorghumPositive and negative results

290 papers: 264 positive, 26 negative or no effect

263 papers in the same direction as this paper · 22 in the opposite direction · 4 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

286 papers more in this group

See all 290 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.