Paper · 2007 · DergiPark (Istanbul University)

Comparative Efficiency of Bio- and Chemical Fertilizers on Nutrient Contents and Biomass Yield in Medicinal Plant Stevia rebaudiana Bert.

DAS, Kuntal; 6t. John’s Pharmacy College, #6, R.P.C Layout, Vijayanagar, Bangalore-560040. INDIA; DANG, Raman; et al.

4
claims
11
verbatim quotes
12
citations
2
research areas
—
Not open access

Abstract

A green house experiment was conducted at the Indian Institute of Horticultural Research (IIHR), Hessaraghatta, Bangalore, India to study the comparative effect of agro-techniques on biomass yield and nutrient content in stevia by applied chemical fertilizers (N, P and K as sole and in combinations) and bio-fertilizers (Vesicular Arbuscular Mycorrhiza, Phosphorus solubilizing bacteria and Azospirillum as sole and in combinations) and the results showed that the biomass yield as well as nutrient content in stevia have been recorded an increase significantly due to inorganic chemical and biofertilizer applications. The magnitude of such increase in biomass yield and nutrient content was recorded significantly higher with the application of biofertilizer, being further greater increase with combined applications of VAM, PSB and Azospirillum. The increase of biomass yield was 10.80 and 53.20 % higher with the combined applications of VAM+PSB+Azospirillum over that of PSB+VAM and chemical fertilizers (N, P and K), respectively

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Claims 4

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Chemical and bio-fertilizer applications significantly increased biomass yield and nutrient content of stevia in the greenhouse

Taxon
steviaSteviae1
Treatment
inorganic chemical and biofertilizer applicationse1
Outcome
biomass yield as well as nutrient contente1
Direction
an increasee1
Setting
green housee3

Not reportedComparator

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

Stevia
Stevia · Taxon · picture of the genus (one of its species)Ethel Aardvark · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e1

“the biomass yield as well as nutrient content in stevia have been recorded an increase significantly due to inorganic chemical and biofertilizer applications”

✓ located verbatim in the source · abstract, characters 462–619 · show in text ↑
e3

“A green house experiment was conducted at the Indian Institute of Horticultural Research (IIHR), Hessaraghatta, Bangalore, India”

✓ located verbatim in the source · abstract, characters 0–128 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bio-fertilizer application increased biomass yield and nutrient content of stevia significantly more than inorganic chemical fertilizer

Taxon
steviaSteviae1
Treatment
application of biofertilizere2
Outcome
biomass yield and nutrient contente2
Direction
significantly highere2
Comparator
inorganic chemicale1
Setting
green housee3

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

Stevia
Stevia · Taxon · picture of the genus (one of its species)Ethel Aardvark · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e1

“the biomass yield as well as nutrient content in stevia have been recorded an increase significantly due to inorganic chemical and biofertilizer applications”

✓ located verbatim in the source · abstract, characters 462–619 · show in text ↑
e2

“The magnitude of such increase in biomass yield and nutrient content was recorded significantly higher with the application of biofertilizer”

✓ located verbatim in the source · abstract, characters 621–761 · show in text ↑
e3

“A green house experiment was conducted at the Indian Institute of Horticultural Research (IIHR), Hessaraghatta, Bangalore, India”

✓ located verbatim in the source · abstract, characters 0–128 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined VAM+PSB+Azospirillum application increased biomass yield of stevia by 10.80% over PSB+VAM

Taxon
steviaSteviae1
Treatment
combined applications of VAM+PSB+Azospirillume4
Outcome
biomass yielde4
Direction
highere4
Value
10.80e4
Comparator
PSB+VAMe4
Setting
green housee3

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

Stevia
Stevia · Taxon · picture of the genus (one of its species)Ethel Aardvark · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e1

“the biomass yield as well as nutrient content in stevia have been recorded an increase significantly due to inorganic chemical and biofertilizer applications”

✓ located verbatim in the source · abstract, characters 462–619 · show in text ↑
e3

“A green house experiment was conducted at the Indian Institute of Horticultural Research (IIHR), Hessaraghatta, Bangalore, India”

✓ located verbatim in the source · abstract, characters 0–128 · show in text ↑
e4

“The increase of biomass yield was 10.80 and 53.20 % higher with the combined applications of VAM+PSB+Azospirillum over that of PSB+VAM and chemical fertilizers (N, P and K), respectively”

✓ located verbatim in the source · abstract, characters 851–1037 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined VAM+PSB+Azospirillum application increased biomass yield of stevia by 53.20% over chemical fertilizers (N, P and K)

Taxon
steviaSteviae1
Treatment
combined applications of VAM+PSB+Azospirillume4
Outcome
biomass yielde4
Direction
highere4
Value
53.20e4
Comparator
chemical fertilizers (N, P and K)e4
Setting
green housee3

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

Stevia
Stevia · Taxon · picture of the genus (one of its species)Ethel Aardvark · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e1

“the biomass yield as well as nutrient content in stevia have been recorded an increase significantly due to inorganic chemical and biofertilizer applications”

✓ located verbatim in the source · abstract, characters 462–619 · show in text ↑
e3

“A green house experiment was conducted at the Indian Institute of Horticultural Research (IIHR), Hessaraghatta, Bangalore, India”

✓ located verbatim in the source · abstract, characters 0–128 · show in text ↑
e4

“The increase of biomass yield was 10.80 and 53.20 % higher with the combined applications of VAM+PSB+Azospirillum over that of PSB+VAM and chemical fertilizers (N, P and K), respectively”

✓ located verbatim in the source · abstract, characters 851–1037 · show in text ↑

inoculation · yield · SteviaResults agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 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.