Paper · 2025 · Compost Science & Utilization

Synergistic Effects of Different Composts and Microbial Inoculants on Crop Yield, Soil Fertility, and Microbial Populations

Nallagatla Vinod Kumar; M. B. Patil; B. T. Nadagouda; et al.

8
claims
16
verbatim quotes
1
citations
3
research areas
✓
Open access · cc-by

Abstract

In recent years, organic agriculture has gained substantial attention as a sustainable alternative to conventional farming practices, particularly due to its environmental benefits. Organic farming emphasizes the use of organic amendments, such as compost, combined with microbial inoculants to improve soil fertility, enhance crop yields, and reduce environmental degradation. The present study was conducted to investigate the synergistic effects of different compost types (vermicompost, farmyard manure (FYM) and microbial inoculants (Rhizobium, PSB) on the yield, soil fertility and microbial populations in blackgram cultivation. The application of vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSB significantly enhanced seed and haulm yields, with increase of 6.37% and 7.86% respectively, compared to other treatments. The highest soil available nitrogen (291.39 kg ha−1) was recorded in the vermicompost-based treatment, demonstrating a 6.17% and 3.19% increase over FYM-based treatments. Additionally, nutrient uptake was notably higher in the vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSB treatment, with increases of 5.85%, 10.1% and 7.6% for nitrogen, phosphorus, and potassium respectively. Microbial populations, including bacteria, fungi and actinomycetes were significantly higher in treatments combining vermicompost and microbial inoculants, indicating enhanced soil microbial diversity and nutrient cycling. These results highlight the effectiveness of integrating different compost types with microbial inoculants in improving soil fertility, crop productivity, and environmental sustainability.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 8

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSB significantly enhanced blackgram seed yield by 6.37% compared with other treatments.

Taxon
blackgramVigna mungoe2
Treatment
vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSBe1
Interactor
RhizobiumRhizobiume1symbiont
Outcome
seede1
Direction
enhancede1
Value
6.37%e1
Comparator
other treatmentse1

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“The application of vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSB significantly enhanced seed and haulm yields, with increase of 6.37% and 7.86% respectively, compared to other treatments”

✓ located verbatim in the source · abstract, characters 636–837 · show in text ↑
e2

“blackgram cultivation”

✓ located verbatim in the source · abstract, characters 613–634 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The same treatment significantly enhanced blackgram haulm yield by 7.86% compared with other treatments.

Taxon
blackgramVigna mungoe2
Treatment
vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSBe1
Interactor
RhizobiumRhizobiume1symbiont
Outcome
haulm yieldse1
Direction
enhancede1
Value
7.86%e1
Comparator
other treatmentse1

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“The application of vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSB significantly enhanced seed and haulm yields, with increase of 6.37% and 7.86% respectively, compared to other treatments”

✓ located verbatim in the source · abstract, characters 636–837 · show in text ↑
e2

“blackgram cultivation”

✓ located verbatim in the source · abstract, characters 613–634 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The highest soil available nitrogen, 291.39 kg ha-1, was recorded in the vermicompost-based treatment, higher than FYM-based treatments.

Taxon
blackgramVigna mungoe2
Treatment
vermicompost-based treatmente1
Outcome
soil available nitrogene1
Direction
higheste1
Value
291.39 kg ha−1e1
Comparator
FYM-based treatmentse1

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“The highest soil available nitrogen (291.39 kg ha−1) was recorded in the vermicompost-based treatment, demonstrating a 6.17% and 3.19% increase over FYM-based treatments”

✓ located verbatim in the source · abstract, characters 839–1008 · show in text ↑
e2

“blackgram cultivation”

✓ located verbatim in the source · abstract, characters 613–634 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil available nitrogen in the vermicompost-based treatment was 6.17% and 3.19% higher than in the FYM-based treatments.

Taxon
blackgramVigna mungoe2
Treatment
vermicompost-based treatmente1
Outcome
soil available nitrogene1
Direction
increasee1
Value
6.17% and 3.19%e1
Comparator
FYM-based treatmentse1

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“The highest soil available nitrogen (291.39 kg ha−1) was recorded in the vermicompost-based treatment, demonstrating a 6.17% and 3.19% increase over FYM-based treatments”

✓ located verbatim in the source · abstract, characters 839–1008 · show in text ↑
e2

“blackgram cultivation”

✓ located verbatim in the source · abstract, characters 613–634 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nutrient uptake of nitrogen was higher in the vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSB treatment, by 5.85%.

Taxon
blackgramVigna mungoe2
Treatment
vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSBe1
Interactor
RhizobiumRhizobiume1symbiont
Outcome
nutrient uptakee1
Direction
highere1
Value
5.85%e1
Qualifier
nitrogene1

Not reportedComparator

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“nutrient uptake was notably higher in the vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSB treatment, with increases of 5.85%, 10.1% and 7.6% for nitrogen, phosphorus, and potassium respectively”

✓ located verbatim in the source · abstract, characters 1024–1230 · show in text ↑
e2

“blackgram cultivation”

✓ located verbatim in the source · abstract, characters 613–634 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nutrient uptake of phosphorus was higher in the vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSB treatment, by 10.1%.

Taxon
blackgramVigna mungoe2
Treatment
vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSBe1
Interactor
RhizobiumRhizobiume1symbiont
Outcome
nutrient uptakee1
Direction
highere1
Value
10.1%e1
Qualifier
phosphoruse1

Not reportedComparator

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“nutrient uptake was notably higher in the vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSB treatment, with increases of 5.85%, 10.1% and 7.6% for nitrogen, phosphorus, and potassium respectively”

✓ located verbatim in the source · abstract, characters 1024–1230 · show in text ↑
e2

“blackgram cultivation”

✓ located verbatim in the source · abstract, characters 613–634 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nutrient uptake of potassium was higher in the vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSB treatment, by 7.6%.

Taxon
blackgramVigna mungoe2
Treatment
vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSBe1
Interactor
RhizobiumRhizobiume1symbiont
Outcome
nutrient uptakee1
Direction
highere1
Value
7.6%e1
Qualifier
potassiume1

Not reportedComparator

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“nutrient uptake was notably higher in the vermicompost + Ghanajeevamrutha + 100% RDP + Rhizobium + PSB treatment, with increases of 5.85%, 10.1% and 7.6% for nitrogen, phosphorus, and potassium respectively”

✓ located verbatim in the source · abstract, characters 1024–1230 · show in text ↑
e2

“blackgram cultivation”

✓ located verbatim in the source · abstract, characters 613–634 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Microbial populations (bacteria, fungi and actinomycetes) were significantly higher in treatments combining vermicompost and microbial inoculants.

Taxon
blackgramVigna mungoe2
Treatment
treatments combining vermicompost and microbial inoculantse1
Outcome
Microbial populationse1
Direction
highere1

Not reportedComparator

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Microbial populations, including bacteria, fungi and actinomycetes were significantly higher in treatments combining vermicompost and microbial inoculants”

✓ located verbatim in the source · abstract, characters 1232–1386 · show in text ↑
e2

“blackgram cultivation”

✓ located verbatim in the source · abstract, characters 613–634 · show in text ↑

Rhizobium · nutrient: content · Vigna mungo (black gram)Results agree

19 papers: 19 positive, 0 negative or no effect

18 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

15 papers more in this group

See all 19 papers →

Rhizobium · yield · Vigna mungo (black gram)Results agree

64 papers: 64 positive, 0 negative or no effect

63 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

60 papers more in this group

See all 64 papers →

fertilization · soil: chemistry · Vigna mungo (black gram)Positive and negative results

20 papers: 19 positive, 1 negative or no effect

18 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. positive
  3. no effect

16 papers more in this group

See all 20 papers →

fertilization · nutrient: content · Vigna mungo (black gram)Positive and negative results

42 papers: 41 positive, 1 negative or no effect

40 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. positive
  3. negative

38 papers more in this group

See all 42 papers →

fertilization · yield · Vigna mungo (black gram)Positive and negative results

199 papers: 197 positive, 2 negative or no effect

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

  1. positive
  2. negative
  3. no effect

195 papers more in this group

See all 199 papers →

fertilization · soil: biology · Vigna mungo (black gram)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

inoculation · soil: biology · Vigna mungo (black gram)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 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.