Paper · 2010 · Sarhad Journal of Agriculture

Wheat yielding components response to different levels of fertilizer-N application time and decapitation stress.

Muhammad Zahir Afridi; M. T. Jan; Muhammad Arif; et al.

7
claims
14
verbatim quotes
10
citations
1
research areas
—
Not open access

Abstract

Wheat (Triticum aestivum L.) if cut before boot stage can be used for both forage and grain purposes, however, it needs better nutrient management along with other agronomic practices to reduce the possible loss in grain yield. A field experiment was conducted on imposing decapitation stress in wheat as compare to no cut under different N levels and its application time to assess the response of yield crop and yield components. The decapitation stress was imposed through cutting of foliage at 60 d after wheat sowing. Three levels of nitrogen (100, 150 and 200 kg ha) were applied as full dose at sowing (M1), full dose at 2 irrigation (M2) and split (M3) as half each at sowing and with 2 irrigation to cut (C1) or no cut (C0) wheat. Treatments were arranged in randomized complete block (RCB) design with four replications having a plot size of 3 m x 5 m. Wheat cultivar Fakhre Sarhad was planted on 1 November 2004 with seed rate of 120 kg ha. The experiment was conducted on well developed, deep silty clay loam alkaline soil (pH = 7.7-8.2) at Agricultural Research Farm (Malakandher), KP Agricultural University Peshawar during 2004-05. Compared to control, fertilizer-N supplementation produced more spikes m (349), grains spike (44), thousand grains weight (37.21 g), grain yield (2985 kg ha), biological yield (10039 kg ha) and harvest index (37 %) as compare to control. Whereas the decapitation stress decreased spikes m (316), grains spike (42), thousand grains weight (35.92 g), grain yield (2601 kg ha), biological yield (9176 kg ha) and harvest index by 35 % as compare to no-cut plots. Compared to control fertilizer-N levels increased spikes m (368), grains spike (46), thousand grains weight (37.89 g), grain yield (3213 kg ha) and biological yield (10923 kg ha. Similarly, the split application of fertilizerN improved spikes m (353), grain spike (45), grain yield (3165 kg ha) and biological yield (10527 kg ha) as compared to control, whereas thousand grains weight and harvest index were not affected by fertilizer-N application time. Based on the findings of this study wheat can be grown as dual purpose crop and the reduction in yielding component can be managed through increase in fertilizer-N level, through split application, half at sowing and half with 2 irrigation.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen supplementation raised spike number, grains per spike and thousand grain weight.

Treatment
fertilizer-N supplementatione0
Outcome
spikes me0
Direction
moree0
Value
349e0
Comparator
controle1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“fertilizer-N supplementation produced more spikes m (349), grains spike (44), thousand grains weight (37.21 g)”

✓ located verbatim in the source · abstract, characters 1168–1278 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
e1

“grain yield (2985 kg ha), biological yield (10039 kg ha) and harvest index (37 %) as compare to control”

✓ located verbatim in the source · abstract, characters 1280–1383 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen supplementation raised grain yield to 2985 kg ha.

Outcome
grain yielde0
Value
2985 kg hae0
Comparator
controle0

Not reportedTreatmentDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“grain yield (2985 kg ha), biological yield (10039 kg ha) and harvest index (37 %) as compare to control”

✓ located verbatim in the source · abstract, characters 1280–1383 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Decapitation decreased grain yield to 2601 kg ha.

Treatment
decapitation stresse0
Outcome
grain yielde0
Direction
decreasede0
Value
2601 kg hae0
Comparator
no-cut plotse0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“decapitation stress decreased spikes m (316), grains spike (42), thousand grains weight (35.92 g), grain yield (2601 kg ha), biological yield (9176 kg ha) and harvest index by 35 % as compare to no-cut plots”

✓ located verbatim in the source · abstract, characters 1397–1604 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher nitrogen levels increased grain yield to 3213 kg ha.

Treatment
fertilizer-N levelse0
Outcome
grain yielde0
Direction
increasede0
Value
3213 kg hae0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“fertilizer-N levels increased spikes m (368), grains spike (46), thousand grains weight (37.89 g), grain yield (3213 kg ha) and biological yield (10923 kg ha”

✓ located verbatim in the source · abstract, characters 1626–1783 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Split fertilizer application improved grain yield to 3165 kg ha.

Treatment
split application of fertilizerNe0
Outcome
grain yielde0
Direction
improvede0
Value
3165 kg hae0
Comparator
controle0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“split application of fertilizerN improved spikes m (353), grain spike (45), grain yield (3165 kg ha) and biological yield (10527 kg ha) as compared to control”

✓ located verbatim in the source · abstract, characters 1800–1958 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Fertilizer application timing did not affect thousand grain weight or harvest index.

Treatment
fertilizer-N application timee0
Outcome
thousand grains weight and harvest indexe0
Direction
not affectede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“thousand grains weight and harvest index were not affected by fertilizer-N application time”

✓ located verbatim in the source · abstract, characters 1968–2059 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend higher and split nitrogen for dual-purpose wheat to manage yield component reductions.

Outcome
reduction in yielding component can be managede0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“wheat can be grown as dual purpose crop and the reduction in yielding component can be managed through increase in fertilizer-N level, through split application, half at sowing and half with 2 irrigation”

✓ located verbatim in the source · abstract, characters 2097–2300 · show in text ↑

pruning · yield · Triticum aestivum (wheat)Positive and negative results

93 papers: 33 positive, 60 negative or no effect

59 papers in the same direction as this paper · 33 in the opposite direction

  1. positive
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  3. positive

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fertilization · yield · Triticum aestivum (wheat)Positive and negative results

3,438 papers: 3,115 positive, 323 negative or no effect

3,114 papers in the same direction as this paper · 284 in the opposite direction · 39 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive

3,434 papers more in this group

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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.