Paper · 2014 · American Journal of Life Sciences

Effects of Nitrogen and Phosphorus Fertilizer Levels on Growth and Development of Barley (Hordeum vulgare L.) at Bore District, Southern Oromia, Ethiopia

Wakene Tigre

8
claims
16
verbatim quotes
49
citations
2
research areas
✓
Open access

Abstract

Fertilizer requirement of crops vary from location to location owing to several factors. Thus there is a need to determine site specific fertilizer recommendation for specific crops. Accordingly, an experiment was conducted on the effects of different nitrogen and phosphorus fertilizer levels on yield and yield components of barley at south eastern Oromia, Bore, in 2009 cropping season. The barley variety Biftu was used as test crop. It is a newly released variety from Sinana Agricultural Research Center. The experiment contained factorial combination of five levels of N (0, 30, 60, 90 and 120 Kg ha-1) and four levels of P (0, 23, 46 and 69 Kg ha-1) laid out in randomized complete block design with four replications. Application of N significantly prolonged number of days to heading and maturity and grain filling period. Number of fertile tillers, total biomass and straw yield were significantly increased by application of N. However, the effect of N on plant height and number of total tillers was not significant. On the other hand, P application significantly influenced all the parameters of growth and development. Contrary to N, increase in P significantly shortened number of days to heading and maturity and grain filling period. Number of fertile tillers was significantly increased by P application. The interaction effect of N and P was significant on days to heading and number of fertile tillers. Therefore, balanced amount of N and P is very essential for appropriate growth of barley.

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Claims 8

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Nitrogen application significantly prolonged barley heading, maturity and grain filling.

Material
Biftue1
Treatment
Ne0
Outcome
number of days to heading and maturity and grain filling periode0
Direction
prolongede0
Setting
south eastern Oromia, Boree2

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of N significantly prolonged number of days to heading and maturity and grain filling period”

✓ located verbatim in the source · abstract, characters 727–831 · show in text ↑
e1

“barley variety Biftu”

✓ located verbatim in the source · abstract, characters 394–414 · show in text ↑
e2

“at south eastern Oromia, Bore”

✓ located verbatim in the source · abstract, characters 334–363 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen significantly increased barley fertile tillers, biomass and straw yield.

Material
Biftue1
Treatment
Ne0
Outcome
Number of fertile tillers, total biomass and straw yielde0
Direction
increasede0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Number of fertile tillers, total biomass and straw yield were significantly increased by application of N”

✓ located verbatim in the source · abstract, characters 833–938 · show in text ↑
e1

“barley variety Biftu”

✓ located verbatim in the source · abstract, characters 394–414 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen effects on barley height and total tiller count were not significant.

Material
Biftue1
Treatment
Ne0
Outcome
plant height and number of total tillerse0

Not reportedComparatorDirection

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the effect of N on plant height and number of total tillers was not significant”

✓ located verbatim in the source · abstract, characters 949–1028 · show in text ↑
e1

“barley variety Biftu”

✓ located verbatim in the source · abstract, characters 394–414 · show in text ↑
Intervention effectobservedoriginal resultmixedsignificant (as stated)measured

Claim · model-written summary

Phosphorus significantly influenced all measured growth and development parameters.

Material
Biftue1
Treatment
P applicatione0
Outcome
all the parameters of growth and developmente0

Not reportedComparatorDirection

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“P application significantly influenced all the parameters of growth and development”

✓ located verbatim in the source · abstract, characters 1049–1132 · show in text ↑
e1

“barley variety Biftu”

✓ located verbatim in the source · abstract, characters 394–414 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Increasing phosphorus significantly shortened heading, maturity and grain filling in barley.

Material
Biftue1
Treatment
increase in Pe0
Outcome
number of days to heading and maturity and grain filling periode0
Direction
shortenede0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“increase in P significantly shortened number of days to heading and maturity and grain filling period”

✓ located verbatim in the source · abstract, characters 1149–1250 · show in text ↑
e1

“barley variety Biftu”

✓ located verbatim in the source · abstract, characters 394–414 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Phosphorus significantly increased fertile tiller number in barley.

Material
Biftue1
Treatment
P applicatione0
Outcome
Number of fertile tillerse0
Direction
increasede0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Number of fertile tillers was significantly increased by P application”

✓ located verbatim in the source · abstract, characters 1252–1322 · show in text ↑
e1

“barley variety Biftu”

✓ located verbatim in the source · abstract, characters 394–414 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Nitrogen and phosphorus interacted significantly for barley heading time and fertile tiller number.

Material
Biftue1
Treatment
N and Pe0
Outcome
days to heading and number of fertile tillerse0

Not reportedComparatorDirection

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The interaction effect of N and P was significant on days to heading and number of fertile tillers”

✓ located verbatim in the source · abstract, characters 1324–1422 · show in text ↑
e1

“barley variety Biftu”

✓ located verbatim in the source · abstract, characters 394–414 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend balanced nitrogen and phosphorus for appropriate barley growth.

Outcome
balanced amount of N and P is very essential for appropriate growthe0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“balanced amount of N and P is very essential for appropriate growth of barley”

✓ located verbatim in the source · abstract, characters 1435–1512 · show in text ↑

phosphorus · yield · Hordeum vulgare (barley)Results differ

80 papers: 71 positive, 9 negative or no effect

70 papers in the same direction as this paper · 8 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

76 papers more in this group

See all 80 papers →

nitrogen · yield · Hordeum vulgare (barley)Positive and negative results

299 papers: 252 positive, 47 negative or no effect

251 papers in the same direction as this paper · 44 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

295 papers more in this group

See all 299 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.