Paper · 2022 · Journal of Plant Nutrition

Plant-soil nitrogen, carbon and phosphorus content after the addition of biochar, bacterial inoculums and nitrogen fertilizer

Irina Mikajlo; Bertrand Pourrut; Brice Louvel; et al.

6
claims
12
verbatim quotes
8
citations
2
research areas
✓
Open access · cc-by

Abstract

The use of biochar in combination with mineral or biological amendments to improve its influence on soil-plant properties has received growing attention. The changes of nitrogen, carbon and phosphorus content in Lactuca sativa var. capitata aboveground plant biomass and soil after the addition of beech wood biochar combined with the addition of bacterial inoculums (Bacofil and Novarefm) and nitrogen fertilizer have been studied using spectrophotometry methods. Pots were filled with the arable soil from the plots in the protection zone of water sources (Březová nad Svitavou, South Moravia, Czech Republic). Biochar with inoculums decreased plant growth in the first yield of Novaferm treatment and both yields of Bactofil treatment. Increased plant biomass growth was observed with Novaferm addition in the second yield. Total nitrogen increase has been obtained in the plant aboveground biomass and soil of the treatments amended with inoculums and nitrogen fertilizer. The decrease of phosphorus content has been observed in plant aboveground biomass in the biochar amended samples.

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 6

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Biochar with Novaferm decreased plant growth in the first yield.

Taxon
Lactuca sativa var. capitataLactuca sativa var. capitatat0
Treatment
Biochar with inoculumse0
Outcome
plant growthe0
Direction
decreasede0
Qualifier
first yield of Novaferm treatmente0

Not reportedComparator

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

Lactuca sativa var. capitata
Lactuca sativa var. capitata · Taxon · picture of the speciesen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Biochar with inoculums decreased plant growth in the first yield of Novaferm treatment”

✓ located verbatim in the source · abstract, characters 613–699 · show in text ↑
t0

“Lactuca sativa var. capitata aboveground plant biomass”

✓ located verbatim in the source · abstract, characters 212–266 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Biochar with Bactofil decreased plant growth in both yields.

Taxon
Lactuca sativa var. capitataLactuca sativa var. capitatat0
Treatment
Biochar with inoculumse0
Outcome
plant growthe0
Direction
decreasede0
Qualifier
both yields of Bactofil treatmente0

Not reportedComparator

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

Lactuca sativa var. capitata
Lactuca sativa var. capitata · Taxon · picture of the speciesen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Biochar with inoculums decreased plant growth in the first yield of Novaferm treatment and both yields of Bactofil treatment”

✓ located verbatim in the source · abstract, characters 613–737 · show in text ↑
t0

“Lactuca sativa var. capitata aboveground plant biomass”

✓ located verbatim in the source · abstract, characters 212–266 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Novaferm increased plant biomass growth in the second yield.

Taxon
Lactuca sativa var. capitataLactuca sativa var. capitatat0
Treatment
Novaferm additione0
Outcome
plant biomass growthe0
Direction
Increasede0
Qualifier
in the second yielde0

Not reportedComparator

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

Lactuca sativa var. capitata
Lactuca sativa var. capitata · Taxon · picture of the speciesen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Increased plant biomass growth was observed with Novaferm addition in the second yield”

✓ located verbatim in the source · abstract, characters 739–825 · show in text ↑
t0

“Lactuca sativa var. capitata aboveground plant biomass”

✓ located verbatim in the source · abstract, characters 212–266 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculums and nitrogen fertilizer increased total nitrogen in aboveground biomass.

Taxon
Lactuca sativa var. capitataLactuca sativa var. capitatat0
Organ / stage
aboveground biomasse0
Treatment
inoculums and nitrogen fertilizere0
Outcome
Total nitrogene0
Direction
increasee0

Not reportedComparator

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

Lactuca sativa var. capitata
Lactuca sativa var. capitata · Taxon · picture of the speciesen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Total nitrogen increase has been obtained in the plant aboveground biomass and soil of the treatments amended with inoculums and nitrogen fertilizer”

✓ located verbatim in the source · abstract, characters 827–975 · show in text ↑
t0

“Lactuca sativa var. capitata aboveground plant biomass”

✓ located verbatim in the source · abstract, characters 212–266 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Inoculums and nitrogen fertilizer increased soil total nitrogen.

Taxon
Lactuca sativa var. capitataLactuca sativa var. capitatat0
Treatment
inoculums and nitrogen fertilizere0
Outcome
Total nitrogen increasee0
Direction
increasee0
Qualifier
soile0

Not reportedComparator

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

Lactuca sativa var. capitata
Lactuca sativa var. capitata · Taxon · picture of the speciesen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Total nitrogen increase has been obtained in the plant aboveground biomass and soil of the treatments amended with inoculums and nitrogen fertilizer”

✓ located verbatim in the source · abstract, characters 827–975 · show in text ↑
t0

“Lactuca sativa var. capitata aboveground plant biomass”

✓ located verbatim in the source · abstract, characters 212–266 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Biochar decreased phosphorus content in aboveground plant biomass.

Taxon
Lactuca sativa var. capitataLactuca sativa var. capitatat0
Organ / stage
aboveground biomasse0
Treatment
biochare0
Outcome
phosphorus contente0
Direction
decreasee0

Not reportedComparator

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

Lactuca sativa var. capitata
Lactuca sativa var. capitata · Taxon · picture of the speciesen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The decrease of phosphorus content has been observed in plant aboveground biomass in the biochar amended samples”

✓ located verbatim in the source · abstract, characters 977–1089 · show in text ↑
t0

“Lactuca sativa var. capitata aboveground plant biomass”

✓ located verbatim in the source · abstract, characters 212–266 · show in text ↑

biochar · growth · Lactuca sativa (garden lettuce)Results differ

52 papers: 41 positive, 11 negative or no effect

10 papers in the same direction as this paper · 41 in the opposite direction

  1. no effect
  2. positive
  3. positive

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biochar · nutrient: content · Lactuca sativa (garden lettuce)Positive and negative results

20 papers: 18 positive, 2 negative or no effect

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

  1. positive
  2. positive
  3. positive

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inoculation · nutrient: content · Lactuca sativa (garden lettuce)Positive and negative results

26 papers: 24 positive, 2 negative or no effect

23 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. no effect
  3. positive

22 papers more in this group

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inoculation · growth · Lactuca sativa (garden lettuce)Positive and negative results

111 papers: 97 positive, 14 negative or no effect

13 papers in the same direction as this paper · 97 in the opposite direction

  1. positive
  2. positive
  3. positive

107 papers more in this group

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fertilization · nutrient: content · Lactuca sativa (garden lettuce)Positive and negative results

137 papers: 112 positive, 25 negative or no effect

111 papers in the same direction as this paper · 23 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

133 papers more in this group

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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.