Paper · 2024 · Asian Journal of Advances in Agricultural Research

Field and Economic Evaluation of Barley Productivity as Affected by Seed Rates and Slow-release Nitrogen Fertilizer Levels under Rainfed Conditions

Sally E. El-Wakeel; Mohamed Mansour; Ashgan M. Abd El-Azeem; et al.

20
claims
54
verbatim quotes
0
citations
1
research areas
✓
Open access

Abstract

A field experiment was conducted at the north western coast of Egypt under rainfed conditions to study the effects of seed rates (70, 95 and 120 kg ha-1) and nitrogen fertilizer treatments (0, 35, 70 and 105 kg N ha-1) of Ensiabeen-40% N as slow-release fertilizer compared with 105 kg N ha-1 as Ammonium nitrate (33.5%N) on productivity of barley cultivar Giza134. This investigation was conducted during 2019/2020 and 2020/2021 winter growing seasons. The treatments were laid out in a split plot design, with three replications. Plant height, spike length, number of grins spike-1, number of spikes per m2, 1000 grain weight, biological and grain yield were recorded. In addition, total income and net return (LE)/hactare were calculated. The results indicated that mean squares due to seasons, seed rates, nitrogen levels and their interactions were significant for most studied traits. Mean performance of the studied traits as affected by seasons, seed rates and nitrogen levels showed that, the most desirable values were obtained by SR1 for spike length (6.13cm), number of grains spike-1 (48.78 grain) and 1000 grain weight (42.15g), from SR2 for Biological yield (6.02 ton ha-1) and grain yield (1.85 ton ha-1) and from SR3 for plant height (78.28cm) and number of spikes m-2 (180.11 spike). For nitrogen level effects, N4 recorded the most favorable values for all studied traits; plant height (81.48cm), spike length (6.33cm), number of grains spike-1 (49.99 grain), number of spikes m-2 (187.60 spike), Biological yield (6.88 ton ha-1), grain yield (2.12 ton ha-1) and 1000 grain weight (42.89g). Grain yield exhibited highly significant and positive correlation with each of plant height (r= 0.833**), spike length(r=0.621**), number of grains spike-1 (r=0.768**), number of spikes m-2(r=0.880**) and weight of 1000 grains (r= 0.661**). The most contributing variable in the total variation of grain yield were number of spikes m-2, number of grains spike-1 and spike length. These variables contributed by 92.9% in the grain yield variation. The results also indicated that, the highest values in the total income were 19149 and 24990 pound.hec-1 respectively, and net return were 9492 and 15498 pound.hec-1 obtained from the interaction between seed rate of 5kg ha-1 (SR2) and 105 unit of slow release fertilizer (N4) during the two growing seasons. It could recommend this treatment to maximize the total income for the farmers in such location.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 20

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Season, seed rate, nitrogen level and interactions significantly affected most barley traits.

Treatment
seed rates, nitrogen levelse0
Outcome
most studied traitse0
Setting
seasonse0

Not reportedDirection

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

“mean squares due to seasons, seed rates, nitrogen levels and their interactions were significant for most studied traits”

✓ located verbatim in the source · abstract, characters 769–889 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SR1 had the most desirable spike length of 6.13 cm.

Treatment
SR1e0
Outcome
spike lengthe0
Direction
most desirablee2
Value
6.13cme0

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

“SR1 for spike length (6.13cm)”

✓ located verbatim in the source · abstract, characters 1041–1070 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
e2

“most desirable values were obtained”

✓ located verbatim in the source · abstract, characters 1002–1037 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SR1 had the most desirable grain number per spike at 48.78.

Treatment
SR1e2
Outcome
number of grains spike-1e0
Direction
most desirablee3
Value
48.78 graine0

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 grains spike-1 (48.78 grain)”

✓ located verbatim in the source · abstract, characters 1072–1110 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
e2

“SR1 for spike length”

✓ located verbatim in the source · abstract, characters 1041–1061 · show in text ↑
e3

“most desirable values were obtained”

✓ located verbatim in the source · abstract, characters 1002–1037 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SR1 had the most desirable thousand grain weight at 42.15 g.

Treatment
SR1e2
Outcome
1000 grain weighte0
Direction
most desirablee3
Value
42.15ge0

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

“1000 grain weight (42.15g)”

✓ located verbatim in the source · abstract, characters 1115–1141 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
e2

“SR1 for spike length”

✓ located verbatim in the source · abstract, characters 1041–1061 · show in text ↑
e3

“most desirable values were obtained”

✓ located verbatim in the source · abstract, characters 1002–1037 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SR2 gave the most desirable biological yield of 6.02 ton per hectare.

Treatment
SR2e0
Outcome
Biological yielde0
Direction
most desirablee2
Value
6.02 ton ha-1e0

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

“SR2 for Biological yield (6.02 ton ha-1)”

✓ located verbatim in the source · abstract, characters 1148–1188 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
e2

“most desirable values were obtained”

✓ located verbatim in the source · abstract, characters 1002–1037 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SR2 gave the most desirable grain yield of 1.85 ton per hectare.

Treatment
SR2e2
Outcome
grain yielde0
Direction
most desirablee3
Value
1.85 ton ha-1e0

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

“grain yield (1.85 ton ha-1)”

✓ located verbatim in the source · abstract, characters 1193–1220 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
e2

“SR2 for Biological yield”

✓ located verbatim in the source · abstract, characters 1148–1172 · show in text ↑
e3

“most desirable values were obtained”

✓ located verbatim in the source · abstract, characters 1002–1037 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SR3 gave the most desirable plant height of 78.28 cm.

Treatment
SR3e0
Outcome
plant heighte0
Direction
most desirablee2
Value
78.28cme0

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

“SR3 for plant height (78.28cm)”

✓ located verbatim in the source · abstract, characters 1230–1260 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
e2

“most desirable values were obtained”

✓ located verbatim in the source · abstract, characters 1002–1037 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SR3 gave the most desirable spike density of 180.11.

Treatment
SR3e2
Outcome
number of spikes m-2e0
Direction
most desirablee3
Value
180.11 spikee0

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 spikes m-2 (180.11 spike)”

✓ located verbatim in the source · abstract, characters 1265–1300 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
e2

“SR3 for plant height”

✓ located verbatim in the source · abstract, characters 1230–1250 · show in text ↑
e3

“most desirable values were obtained”

✓ located verbatim in the source · abstract, characters 1002–1037 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N4 produced the most favorable plant height of 81.48 cm.

Treatment
N4e0
Outcome
plant heighte0
Direction
most favorablee0
Value
81.48cme0

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

“N4 recorded the most favorable values for all studied traits; plant height (81.48cm)”

✓ located verbatim in the source · abstract, characters 1330–1414 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N4 produced the most favorable spike length of 6.33 cm.

Treatment
N4e0
Outcome
spike lengthe0
Direction
most favorablee0
Value
6.33cme0

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

“N4 recorded the most favorable values for all studied traits; plant height (81.48cm), spike length (6.33cm)”

✓ located verbatim in the source · abstract, characters 1330–1437 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N4 produced the most favorable grain count per spike of 49.99.

Treatment
N4e0
Outcome
number of grains spike-1e0
Direction
most favorablee0
Value
49.99 graine0

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

“N4 recorded the most favorable values for all studied traits; plant height (81.48cm), spike length (6.33cm), number of grains spike-1 (49.99 grain)”

✓ located verbatim in the source · abstract, characters 1330–1477 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N4 produced the most favorable spike density of 187.60.

Treatment
N4e0
Outcome
number of spikes m-2e0
Direction
most favorablee0
Value
187.60 spikee0

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

“N4 recorded the most favorable values for all studied traits; plant height (81.48cm), spike length (6.33cm), number of grains spike-1 (49.99 grain), number of spikes m-2 (187.60 spike)”

✓ located verbatim in the source · abstract, characters 1330–1514 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N4 produced the most favorable biological yield of 6.88 ton per hectare.

Treatment
N4e0
Outcome
Biological yielde0
Direction
most favorablee0
Value
6.88 ton ha-1e0

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

“N4 recorded the most favorable values for all studied traits; plant height (81.48cm), spike length (6.33cm), number of grains spike-1 (49.99 grain), number of spikes m-2 (187.60 spike), Biological yield (6.88 ton ha-1)”

✓ located verbatim in the source · abstract, characters 1330–1548 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N4 produced the most favorable grain yield of 2.12 ton per hectare.

Treatment
N4e0
Outcome
grain yielde0
Direction
most favorablee0
Value
2.12 ton ha-1e0

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

“N4 recorded the most favorable values for all studied traits; plant height (81.48cm), spike length (6.33cm), number of grains spike-1 (49.99 grain), number of spikes m-2 (187.60 spike), Biological yield (6.88 ton ha-1), grain yield (2.12 ton ha-1)”

✓ located verbatim in the source · abstract, characters 1330–1577 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N4 produced the most favorable thousand grain weight of 42.89 g.

Treatment
N4e0
Outcome
1000 grain weighte0
Direction
most favorablee0
Value
42.89ge0

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

“N4 recorded the most favorable values for all studied traits; plant height (81.48cm), spike length (6.33cm), number of grains spike-1 (49.99 grain), number of spikes m-2 (187.60 spike), Biological yield (6.88 ton ha-1), grain yield (2.12 ton ha-1) and 1000 grain weight (42.89g)”

✓ located verbatim in the source · abstract, characters 1330–1608 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Barley grain yield correlated positively and highly significantly with height, spike length, grains per spike, spikes per area, and thousand grain weight.

Outcome
Grain yielde0
Direction
positive correlatione0
Qualifier
spike length(r=0.621**), number of grains spike-1 (r=0.768**), number of spikes m-2(r=0.880**) and weight of 1000 grains (r= 0.661**)e0
Comparator
plant heighte0

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

“Grain yield exhibited highly significant and positive correlation with each of plant height (r= 0.833**), spike length(r=0.621**), number of grains spike-1 (r=0.768**), number of spikes m-2(r=0.880**) and weight of 1000 grains (r= 0.661**)”

✓ located verbatim in the source · abstract, characters 1610–1849 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Spikes per area, grains per spike and spike length accounted for 92.9% of grain yield variation.

Outcome
grain yield variatione0
Value
92.9%e0
Comparator
number of spikes m-2, number of grains spike-1 and spike lengthe0

Not reportedDirection

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 spikes m-2, number of grains spike-1 and spike length. These variables contributed by 92.9% in the grain yield variation”

✓ located verbatim in the source · abstract, characters 1925–2055 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SR2 combined with N4 produced the highest total income in both seasons.

Treatment
seed rate of 5kg ha-1 (SR2) and 105 unit of slow release fertilizer (N4)e2
Outcome
total incomee0
Direction
higheste0
Value
19149 and 24990 pound.hec-1e0

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

“the highest values in the total income were 19149 and 24990 pound.hec-1 respectively”

✓ located verbatim in the source · abstract, characters 2090–2174 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
e2

“seed rate of 5kg ha-1 (SR2) and 105 unit of slow release fertilizer (N4)”

✓ located verbatim in the source · abstract, characters 2261–2333 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SR2 combined with N4 produced the highest net return in both seasons.

Treatment
seed rate of 5kg ha-1 (SR2) and 105 unit of slow release fertilizer (N4)e0
Outcome
net returne0
Direction
higheste2
Value
9492 and 15498 pound.hec-1e0

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

“net return were 9492 and 15498 pound.hec-1 obtained from the interaction between seed rate of 5kg ha-1 (SR2) and 105 unit of slow release fertilizer (N4)”

✓ located verbatim in the source · abstract, characters 2180–2333 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
e2

“the highest values in the total income”

✓ located verbatim in the source · abstract, characters 2090–2128 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend SR2 with N4 to maximize farmer income at this location.

Treatment
seed rate of 5kg ha-1 (SR2) and 105 unit of slow release fertilizer (N4)e2
Outcome
maximize the total incomee0

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

“It could recommend this treatment to maximize the total income for the farmers in such location”

✓ located verbatim in the source · abstract, characters 2366–2461 · show in text ↑
e1

“barley cultivar Giza134”

✓ located verbatim in the source · abstract, characters 341–364 · show in text ↑
e2

“seed rate of 5kg ha-1 (SR2) and 105 unit of slow release fertilizer (N4)”

✓ located verbatim in the source · abstract, characters 2261–2333 · show in text ↑

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

97 papers: 73 positive, 24 negative or no effect

72 papers in the same direction as this paper · 21 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
  2. no effect
  3. no effect

93 papers more in this group

See all 97 papers →

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

550 papers: 473 positive, 77 negative or no effect

472 papers in the same direction as this paper · 66 in the opposite direction · 11 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

546 papers more in this group

See all 550 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.