Paper · 2015 · Cercetari Agronomice in Moldova

Effect of Sowing Date and Nitrogen Fertilizer on Sorghum (Sorghum bicolor L. var. Speed Feed) Forage Production in a Summer Intercropping System

S. Joorabi; N. Akbari; M. R. Chaichi; et al.

7
claims
14
verbatim quotes
5
citations
2
research areas
✓
Open access

Abstract

Abstract To evaluate the interaction effects of planting date and different levels of nitrogen fertilizer on sorghum ( Sorghum bicolor var. Speed feed) forage production, an experiment was conducted in split plots based on a complete randomized block design in Agricultural Research Station of Khorramabad, Lorestan province, Iran. The experimental treatments comprised of three nitrogen fertilizer levels of control (N0), 100 (N1), and 150 kg per hectare (N2), assigned to main plots and three sowing dates of T1 (June, 10 th ), T2 (June 26 th ) and T3 (July 11 th ) assigned to subplots. Results showed that in sum of two harvests, the yield of hay, forage, leaf and shoot hay weigh in second planting date and N2 and N3 level of fertility was higher than all treatments. In the case of quality treatments the percent of crude protein in first harvest had the most amounts in first and second planting date and N1, N2 and N3 fertility levels. Crude fiber percentage in first harvest of second planting date was highest in N1, N2 and N3 levels of fertility. Treatment interactions had not any significant effect for crude fiber. The most ash percent was observed in first harvest and N1, N2 and N3 fertility level. In second harvest time N2 and N3 fertility levels were superior to the rest. Also, fat percentage in first and second planting date and N1, N2 and N3 increased than the control fertility treatment.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined-harvest hay, forage, leaf and shoot hay yields were higher at the second planting date and N2/N3 levels than other treatments.

Taxon
sorghumSorghume1
Treatment
second planting date and N2 and N3 level of fertilitye0
Outcome
yield of hay, forage, leaf and shoot hay weighe0
Direction
highere0
Comparator
all treatmentse0

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 yield of hay, forage, leaf and shoot hay weigh in second planting date and N2 and N3 level of fertility was higher than all treatments”

✓ located verbatim in the source · abstract, characters 634–772 · show in text ↑
e1

“on sorghum ( Sorghum bicolor var. Speed feed) forage production”

✓ located verbatim in the source · abstract, characters 106–169 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

First-harvest crude protein percentage was greatest for the first and second planting dates at N1, N2 and N3.

Taxon
sorghumSorghume1
Organ / stage
first harveste0
Treatment
first and second planting date and N1, N2 and N3 fertility levelse0
Outcome
percent of crude proteine0
Direction
moste0

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

“the percent of crude protein in first harvest had the most amounts in first and second planting date and N1, N2 and N3 fertility levels”

✓ located verbatim in the source · abstract, characters 808–943 · show in text ↑
e1

“on sorghum ( Sorghum bicolor var. Speed feed) forage production”

✓ located verbatim in the source · abstract, characters 106–169 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

First-harvest crude fiber percentage was highest at the second planting date under N1, N2 and N3.

Taxon
sorghumSorghume1
Treatment
second planting datee0
Outcome
Crude fiber percentagee0
Direction
higheste0
Qualifier
N1, N2 and N3 levels of fertilitye0

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

“Crude fiber percentage in first harvest of second planting date was highest in N1, N2 and N3 levels of fertility”

✓ located verbatim in the source · abstract, characters 945–1057 · show in text ↑
e1

“on sorghum ( Sorghum bicolor var. Speed feed) forage production”

✓ located verbatim in the source · abstract, characters 106–169 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Treatment interactions had no significant effect on crude fiber.

Taxon
sorghumSorghume1
Treatment
Treatment interactionse0
Outcome
crude fibere0
Direction
not any significant effecte0

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

“Treatment interactions had not any significant effect for crude fiber”

✓ located verbatim in the source · abstract, characters 1059–1128 · show in text ↑
e1

“on sorghum ( Sorghum bicolor var. Speed feed) forage production”

✓ located verbatim in the source · abstract, characters 106–169 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Ash percentage was greatest in the first harvest under N1, N2 and N3.

Taxon
sorghumSorghume1
Treatment
N1, N2 and N3 fertility levele0
Outcome
ash percente0
Direction
moste0
Qualifier
first harveste0

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

“The most ash percent was observed in first harvest and N1, N2 and N3 fertility level”

✓ located verbatim in the source · abstract, characters 1130–1214 · show in text ↑
e1

“on sorghum ( Sorghum bicolor var. Speed feed) forage production”

✓ located verbatim in the source · abstract, characters 106–169 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N2 and N3 fertility levels were superior in the second harvest.

Taxon
sorghumSorghume1
Treatment
N2 and N3 fertility levelse0
Outcome
superiore0
Direction
superiore0
Comparator
the reste0

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

“In second harvest time N2 and N3 fertility levels were superior to the rest”

✓ located verbatim in the source · abstract, characters 1216–1291 · show in text ↑
e1

“on sorghum ( Sorghum bicolor var. Speed feed) forage production”

✓ located verbatim in the source · abstract, characters 106–169 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fat percentage rose at the first and second planting dates under N1, N2 and N3 compared with control fertility.

Taxon
sorghumSorghume1
Treatment
first and second planting date and N1, N2 and N3e0
Outcome
fat percentagee0
Direction
increasede0
Comparator
control fertility treatmente0

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

“fat percentage in first and second planting date and N1, N2 and N3 increased than the control fertility treatment”

✓ located verbatim in the source · abstract, characters 1299–1412 · show in text ↑
e1

“on sorghum ( Sorghum bicolor var. Speed feed) forage production”

✓ located verbatim in the source · abstract, characters 106–169 · show in text ↑

sowing time · quality: protein · SorghumPositive and negative results

5 papers: 4 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

sowing time · yield · SorghumPositive and negative results

71 papers: 50 positive, 21 negative or no effect

49 papers in the same direction as this paper · 19 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

67 papers more in this group

See all 71 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.