Paper · 2023 · Korean Journal of Agricultural Science

Effects of organic amendments on lettuce (Lactuca sativa L.) growth and soil chemical properties in acidic and non-acidic soils

Yun-Gu Kang; Jun-Yeong Lee; Jun-Ho Kim; et al.

7
claims
13
verbatim quotes
7
citations
2
research areas
✓
Open access · cc-by-nc

Abstract

Soil acidification challenges global food security by adversely influences soil fertility and agricultural productivity.Carbonized agricultural residues present a sustainable and ecofriendly way to recycle agricultural waste and mitigate soil acidification.We evaluated the effects of organic amendments on lettuce growth and soil chemical properties in two soils with different pH levels.Carbonized rice husk was produced at 600 for 30 min and rice husk was treated at 1% (ww -1 ).Carbonized rice husk increased soil pH, electrical conductivity, total carbon content, and nitrogen content compared with untreated and rice husk treatments.Furthermore, this study found that lettuce growth positively correlated with soil pH, with increasing soil pH up to pH 6.34 resulting in improved lettuce growth parameters.Statistical correlation analysis also supported the relationship between soil pH and lettuce growth parameters.The study findings showed that the use of carbonized rice husk increased the constituent elements of lettuce, such as carbon, nitrogen, and phosphate content.The potassium content of lettuce followed a similar trend; however, was higher in acidic soil than that in non-acidic soil.Therefore, improving the pH of acidic soil is essential to enhance agricultural productivity.It is considered advantageous to use agricultural residues following pyrolysis to improve soil pH and agricultural productivity.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Carbonized rice husk increased soil pH, electrical conductivity and total carbon content compared with untreated and rice husk treatments.

Taxon
lettuceLactuca sativat0
Treatment
Carbonized rice huske1
Outcome
soil pH, electrical conductivity, total carbon contente1
Direction
increasede1
Comparator
untreated and rice husk treatmentse1

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

t0

“Effects of organic amendments on lettuce (Lactuca sativa L.) growth and soil chemical properties in acidic and non-acidic soils”

✓ located verbatim in the source · title, characters 0–127 · show in text ↑
e1

“Carbonized rice husk increased soil pH, electrical conductivity, total carbon content, and nitrogen content compared with untreated and rice husk treatments”

✓ located verbatim in the source · abstract, characters 482–638 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Carbonized rice husk increased soil nitrogen content compared with untreated and rice husk treatments.

Taxon
lettuceLactuca sativat0
Treatment
Carbonized rice huske1
Outcome
nitrogen contente1
Direction
increasede1
Comparator
untreated and rice husk treatmentse1

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

t0

“Effects of organic amendments on lettuce (Lactuca sativa L.) growth and soil chemical properties in acidic and non-acidic soils”

✓ located verbatim in the source · title, characters 0–127 · show in text ↑
e1

“Carbonized rice husk increased soil pH, electrical conductivity, total carbon content, and nitrogen content compared with untreated and rice husk treatments”

✓ located verbatim in the source · abstract, characters 482–638 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Lettuce growth was positively correlated with soil pH, improving up to pH 6.34.

Taxon
lettuceLactuca sativat0
Treatment
increasing soil pH up to pH 6.34e3
Outcome
lettuce growthe2
Direction
positively correlatede2

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

t0

“Effects of organic amendments on lettuce (Lactuca sativa L.) growth and soil chemical properties in acidic and non-acidic soils”

✓ located verbatim in the source · title, characters 0–127 · show in text ↑
e2

“lettuce growth positively correlated with soil pH”

✓ located verbatim in the source · abstract, characters 674–723 · show in text ↑
e3

“increasing soil pH up to pH 6.34 resulting in improved lettuce growth parameters”

✓ located verbatim in the source · abstract, characters 730–810 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Carbonized rice husk increased carbon, nitrogen and phosphate content in lettuce.

Taxon
lettuceLactuca sativae4
Treatment
carbonized rice huske4
Outcome
carbon, nitrogen, and phosphate contente4
Direction
increasede4

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e4

“the use of carbonized rice husk increased the constituent elements of lettuce, such as carbon, nitrogen, and phosphate content”

✓ located verbatim in the source · abstract, characters 953–1079 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Lettuce potassium content was higher in acidic soil than in non-acidic soil.

Taxon
lettuceLactuca sativae5
Outcome
potassium contente5
Direction
highere5
Comparator
non-acidic soile5
Setting
acidic soile5

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e5

“The potassium content of lettuce followed a similar trend; however, was higher in acidic soil than that in non-acidic soil”

✓ located verbatim in the source · abstract, characters 1080–1202 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Improving the pH of acidic soil is essential to enhance agricultural productivity.

Taxon
lettuceLactuca sativat0
Outcome
improving the pH of acidic soile6

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

t0

“Effects of organic amendments on lettuce (Lactuca sativa L.) growth and soil chemical properties in acidic and non-acidic soils”

✓ located verbatim in the source · title, characters 0–127 · show in text ↑
e6

“Therefore, improving the pH of acidic soil is essential to enhance agricultural productivity”

✓ located verbatim in the source · abstract, characters 1203–1295 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Using agricultural residues after pyrolysis is considered advantageous to improve soil pH and productivity.

Taxon
lettuceLactuca sativat0
Outcome
use agricultural residues following pyrolysise7

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

t0

“Effects of organic amendments on lettuce (Lactuca sativa L.) growth and soil chemical properties in acidic and non-acidic soils”

✓ located verbatim in the source · title, characters 0–127 · show in text ↑
e7

“It is considered advantageous to use agricultural residues following pyrolysis to improve soil pH and agricultural productivity”

✓ located verbatim in the source · abstract, characters 1296–1423 · show in text ↑

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

5 papers: 4 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

Oryza sativa · soil: chemistry · Lactuca sativa (garden lettuce)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

Oryza sativa · molecular: metabolites · Lactuca sativa (garden lettuce)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.