Paper · 2018 · Journal of Pharmacognosy and Phytochemistry

Effect of integrated nitrogen management and planting geometry on growth and productivity of maize. (Zea mays L.) Var. SHIATS-Makka 3

Samuel J Kerketta; Rajesh Singh

5
claims
12
verbatim quotes
0
citations
1
research areas
✓
Open access

Abstract

A field experiment was conducted during the kharif season of 2017 on maize crop (var. SHIATS-Makka 3) at the Crop Research Farm, Department of Agronomy, Naini Agricultural Institute, SHUATS, Allahabad (U.P.). The experiment comprised of four integrated nitrogen management treatments, including 75% of the recommended dose of nitrogen (RDN) to be provided through urea and 25% of the RDN to be provided through vermicompost or through Farm Yard Manure, with or without azotobactor seed inoculation and three spacings viz., 50 cm x 20 cm, 60 cm x 15 cm and 60 cm x 20 cm, which were compared with control (100% of the recommended dose of nitrogen only through urea alone, hence comprising of thirteen treatment combinations, laid out in Randomized Block Design and replicated thrice. The results showed that the plots with most narrow plant-plant spacing (60cm x 15 cm) showed higher plant average height (182.18 cm). Maximum plant dry weight at 60DAS (170.09 g) was recorded in plots of 75% RDN through Urea + 25% RDN through Vermicompost with the spacing of 60cm x 20cm. Also the same plot showed highest Test weight (258.5gm) as well as Grain yield (9.52t/ha). However the factor of seed inoculation with azotobacter showed little positive effect on the grain yield.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize plots with the narrowest plant spacing (60 cm x 15 cm) showed higher average plant height (182.18 cm).

Taxon
maizeZea mayst0
Treatment
most narrow plant-plant spacing (60cm x 15 cm)e0
Outcome
plant average heighte0
Direction
highere0
Value
182.18 cme0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“maize”

✓ located verbatim in the source · title, characters 93–98 · show in text ↑
e0

“plots with most narrow plant-plant spacing (60cm x 15 cm) showed higher plant average height (182.18 cm)”

✓ located verbatim in the source · abstract, characters 811–915 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maximum plant dry weight at 60 DAS (170.09 g) was recorded with 75% RDN through urea plus 25% RDN through vermicompost at 60 cm x 20 cm spacing.

Taxon
maizeZea mayst0
Treatment
75% RDN through Urea + 25% RDN through Vermicompost with the spacing of 60cm x 20cme0
Outcome
plant dry weight at 60DASe0
Direction
Maximume0
Value
170.09 ge0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“maize”

✓ located verbatim in the source · title, characters 93–98 · show in text ↑
e0

“Maximum plant dry weight at 60DAS (170.09 g) was recorded in plots of 75% RDN through Urea + 25% RDN through Vermicompost with the spacing of 60cm x 20cm”

✓ located verbatim in the source · abstract, characters 917–1070 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same treatment plot (75% RDN urea + 25% RDN vermicompost, 60 cm x 20 cm) had the highest test weight (258.5 g).

Taxon
maizeZea mayst0
Treatment
75% RDN through Urea + 25% RDN through Vermicompost with the spacing of 60cm x 20cme0
Outcome
Test weighte1
Direction
higheste1
Value
258.5gme1

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“maize”

✓ located verbatim in the source · title, characters 93–98 · show in text ↑
e0

“Maximum plant dry weight at 60DAS (170.09 g) was recorded in plots of 75% RDN through Urea + 25% RDN through Vermicompost with the spacing of 60cm x 20cm”

✓ located verbatim in the source · abstract, characters 917–1070 · show in text ↑
e1

“highest Test weight (258.5gm) as well as Grain yield (9.52t/ha)”

✓ located verbatim in the source · abstract, characters 1098–1161 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same treatment plot (75% RDN urea + 25% RDN vermicompost, 60 cm x 20 cm) had the highest grain yield (9.52 t/ha).

Taxon
maizeZea mayst0
Treatment
75% RDN through Urea + 25% RDN through Vermicompost with the spacing of 60cm x 20cme0
Outcome
Grain yielde1
Direction
higheste1
Value
9.52t/hae1

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“maize”

✓ located verbatim in the source · title, characters 93–98 · show in text ↑
e0

“Maximum plant dry weight at 60DAS (170.09 g) was recorded in plots of 75% RDN through Urea + 25% RDN through Vermicompost with the spacing of 60cm x 20cm”

✓ located verbatim in the source · abstract, characters 917–1070 · show in text ↑
e1

“highest Test weight (258.5gm) as well as Grain yield (9.52t/ha)”

✓ located verbatim in the source · abstract, characters 1098–1161 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seed inoculation with azotobacter showed only a little positive effect on maize grain yield.

Taxon
maizeZea mayst0
Treatment
seed inoculation with azotobactere0
Interactor
azotobacterAzotobactere0symbiont
Outcome
grain yielde0
Direction
little positive effecte0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

t0

“maize”

✓ located verbatim in the source · title, characters 93–98 · show in text ↑
e0

“the factor of seed inoculation with azotobacter showed little positive effect on the grain yield”

✓ located verbatim in the source · abstract, characters 1171–1267 · show in text ↑

density · quality: grain · Zea mays (maize)Positive and negative results

35 papers: 12 positive, 23 negative or no effect

11 papers in the same direction as this paper · 23 in the opposite direction

  1. negative
  2. no effect
  3. negative

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nitrogen · quality: grain · Zea mays (maize)Positive and negative results

72 papers: 59 positive, 13 negative or no effect

58 papers in the same direction as this paper · 11 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

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fertilization · quality: grain · Zea mays (maize)Positive and negative results

106 papers: 89 positive, 17 negative or no effect

88 papers in the same direction as this paper · 17 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

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density · growth · Zea mays (maize)Positive and negative results

197 papers: 119 positive, 78 negative or no effect

118 papers in the same direction as this paper · 76 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

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density · yield · Zea mays (maize)Positive and negative results

658 papers: 519 positive, 139 negative or no effect

518 papers in the same direction as this paper · 132 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

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nitrogen · growth · Zea mays (maize)Positive and negative results

748 papers: 619 positive, 129 negative or no effect

618 papers in the same direction as this paper · 115 in the opposite direction · 14 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

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fertilization · growth · Zea mays (maize)Positive and negative results

1,365 papers: 1,196 positive, 169 negative or no effect

1,195 papers in the same direction as this paper · 149 in the opposite direction · 20 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

1,361 papers more in this group

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nitrogen · yield · Zea mays (maize)Positive and negative results

2,185 papers: 1,906 positive, 279 negative or no effect

1,905 papers in the same direction as this paper · 234 in the opposite direction · 45 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

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8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.