Paper · 2025 · Desalination and Water Treatment

Alleviating soil salinity stress in castor (Ricinus communis L.): Synergistic effects of organic amendments and arbuscular mycorrhizal fungi on growth, yield, and antioxidant improvement under effluent contaminated ecosystem

Kalaiselvi Periasamy; Paul Sebastian Selvaraj; Davamani Veeraswamy; et al.

13
claims
25
verbatim quotes
3
citations
3
research areas
✓
Open access · cc-by-nc

Abstract

Textile and dye industrial effluents , overloaded with salts and contaminants, significantly endangers soil quality and agricultural production. This study assesses the efficacy of organic amendments and arbuscular mycorrhizal fungi (AMF) in mitigating salinity stress and promoting the growth of castor ( Ricinus communis L.) in effluent-contaminated soils. A field experiment was conducted with recommended dose of fertilizers (RDF) with AM fungi and organic amendments, including farmyard manure (FYM), vermicompost (VC), composted press mud (CPM), and composted poultry litter manure (CPLM). The treatment utilizing the recommended dose of N & K combined with 50 % P + CPLM @ 5 t ha −1 + AMF demonstrated the most significant enhancements across several parameters. Post-harvest soil study indicated a decrease in electrical conductivity to 3.49 dS m −1 (from 3.56 dS m −1 ) and an increase in organic carbon to 0.39 %. The quantities of available nitrogen, phosphorus, and potassium rose to 185 kg ha −1 , 23.97 kg ha −1 , and 362 kg ha −1 , respectively. Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1 . The quality indicators shown substantial enhancement, with oil content at 48.9 % and crude protein at 32.4 %. Antioxidant markers, including proline , malondialdehyde (MDA), and catalase , were lowered to 0.5 µmol g −1 , 0.4 µmol g −1 , and 32.7 ml min −1 , respectively which signifies diminished oxidative stress . Arbuscular mycorrhizal fungal root colonization reached a maximum of 65 %, with spore densities attaining 120 per 100 g of soil. This study introduces a novel, sustainable strategy for biologically remediating saline, effluent-contaminated soils through the combined use of composted poultry litter manure and arbuscular mycorrhizal fungi. The integrated approach not only enhanced castor growth and yield but also reduced soil salinity and improved key soil fertility indicators, offering a viable solution for eco-friendly desalination and agricultural sustainability in salt-affected ecosystems.

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 13

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined RD of N and K, 50% P, CPLM at 5 t/ha and AMF decreased soil electrical conductivity to 3.49 dS/m in castor fields

Treatment
RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMFe0
Outcome
electrical conductivitye1
Direction
decreasee1
Value
3.49 dS m −1e1

Not reportedComparator

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e1

“Post-harvest soil study indicated a decrease in electrical conductivity to 3.49 dS m −1 (from 3.56 dS m −1) and an increase in organic carbon to 0.39 %”

✓ located after whitespace/quote normalisation · abstract, characters 770–922 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined RD of N and K, 50% P, CPLM at 5 t/ha and AMF increased soil organic carbon to 0.39%

Treatment
RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMFe0
Outcome
organic carbone1
Direction
increasee1
Value
0.39 %e1

Not reportedComparator

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e1

“Post-harvest soil study indicated a decrease in electrical conductivity to 3.49 dS m −1 (from 3.56 dS m −1) and an increase in organic carbon to 0.39 %”

✓ located after whitespace/quote normalisation · abstract, characters 770–922 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined RD of N and K, 50% P, CPLM at 5 t/ha and AMF raised available nitrogen to 185 kg/ha

Treatment
RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMFe0
Outcome
available nitrogene2
Direction
rosee2
Value
185 kg ha −1e2

Not reportedComparator

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e2

“The quantities of available nitrogen, phosphorus, and potassium rose to 185 kg ha −1 , 23.97 kg ha −1 , and 362 kg ha −1 , respectively”

✓ located verbatim in the source · abstract, characters 924–1059 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined RD of N and K, 50% P, CPLM at 5 t/ha and AMF raised available phosphorus to 23.97 kg/ha

Treatment
RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMFe0
Outcome
phosphoruse2
Direction
rosee2
Value
23.97 kg ha −1e2

Not reportedComparator

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e2

“The quantities of available nitrogen, phosphorus, and potassium rose to 185 kg ha −1 , 23.97 kg ha −1 , and 362 kg ha −1 , respectively”

✓ located verbatim in the source · abstract, characters 924–1059 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined RD of N and K, 50% P, CPLM at 5 t/ha and AMF raised available potassium to 362 kg/ha

Treatment
RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMFe0
Outcome
potassiume2
Direction
rosee2
Value
362 kg ha −1e2

Not reportedComparator

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e2

“The quantities of available nitrogen, phosphorus, and potassium rose to 185 kg ha −1 , 23.97 kg ha −1 , and 362 kg ha −1 , respectively”

✓ located verbatim in the source · abstract, characters 924–1059 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined RD of N and K, 50% P, CPLM at 5 t/ha and AMF gave castor seed yield of 2168 kg/ha

Treatment
RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMFe0
Outcome
seed yielde0
Direction
improvede0
Value
2168 kg ha −1e0

Not reportedComparator

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined RD of N and K, 50% P, CPLM at 5 t/ha and AMF gave castor oil content of 48.9%

Treatment
RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMFe0
Outcome
oil contente3
Direction
substantial enhancemente3
Value
48.9 %e3

Not reportedComparator

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e3

“The quality indicators shown substantial enhancement, with oil content at 48.9 % and crude protein at 32.4 %”

✓ located verbatim in the source · abstract, characters 1227–1335 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined RD of N and K, 50% P, CPLM at 5 t/ha and AMF gave castor crude protein of 32.4%

Treatment
RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMFe0
Outcome
crude proteine3
Direction
substantial enhancemente3
Value
32.4 %e3

Not reportedComparator

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e3

“The quality indicators shown substantial enhancement, with oil content at 48.9 % and crude protein at 32.4 %”

✓ located verbatim in the source · abstract, characters 1227–1335 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined RD of N and K, 50% P, CPLM at 5 t/ha and AMF lowered castor proline to 0.5 µmol/g

Treatment
RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMFe0
Outcome
prolinee4
Direction
lowerede4
Value
0.5 µmol g −1e4

Not reportedComparator

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e4

“Antioxidant markers, including proline , malondialdehyde (MDA), and catalase , were lowered to 0.5 µmol g −1 , 0.4 µmol g −1 , and 32.7 ml min −1”

✓ located verbatim in the source · abstract, characters 1337–1482 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined RD of N and K, 50% P, CPLM at 5 t/ha and AMF lowered castor malondialdehyde to 0.4 µmol/g

Treatment
RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMFe0
Outcome
malondialdehyde (MDA)e4
Direction
lowerede4
Value
0.4 µmol g −1e4

Not reportedComparator

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e4

“Antioxidant markers, including proline , malondialdehyde (MDA), and catalase , were lowered to 0.5 µmol g −1 , 0.4 µmol g −1 , and 32.7 ml min −1”

✓ located verbatim in the source · abstract, characters 1337–1482 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined RD of N and K, 50% P, CPLM at 5 t/ha and AMF lowered castor catalase to 32.7 ml/min

Treatment
RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMFe0
Outcome
catalasee4
Direction
lowerede4
Value
32.7 ml min −1e4

Not reportedComparator

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e4

“Antioxidant markers, including proline , malondialdehyde (MDA), and catalase , were lowered to 0.5 µmol g −1 , 0.4 µmol g −1 , and 32.7 ml min −1”

✓ located verbatim in the source · abstract, characters 1337–1482 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Arbuscular mycorrhizal fungal root colonization of castor reached 65% at maximum

Interactor
Arbuscular mycorrhizal fungale5symbiont
Outcome
root colonizatione5
Value
65 %e5

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e5

“Arbuscular mycorrhizal fungal root colonization reached a maximum of 65 %, with spore densities attaining 120 per 100 g of soil”

✓ located verbatim in the source · abstract, characters 1544–1671 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Arbuscular mycorrhizal fungal spore density reached 120 per 100 g of soil in castor plots

Interactor
Arbuscular mycorrhizal fungale5symbiont
Outcome
spore densitiese5
Value
120 per 100 g of soile5

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

Ricinus communis
Ricinus communis · TaxonDvellakat · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Castor plants subjected to the treatment RD of N & K + 50 % P + CPLM @ 5 t ha −1 + AMF exhibited improved growth and production, with a seed yield of 2168 kg ha −1”

✓ located verbatim in the source · abstract, characters 1061–1224 · show in text ↑
e5

“Arbuscular mycorrhizal fungal root colonization reached a maximum of 65 %, with spore densities attaining 120 per 100 g of soil”

✓ located verbatim in the source · abstract, characters 1544–1671 · show in text ↑

nitrogen · quality: oil · Ricinus communis (castor bean)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 →

fertilization · nutrient: content · Ricinus communis (castor bean)Positive and negative results

12 papers: 11 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

fertilization · quality: oil · Ricinus communis (castor bean)Positive and negative results

13 papers: 12 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

9 papers more in this group

See all 13 papers →

nitrogen · yield · Ricinus communis (castor bean)Positive and negative results

34 papers: 31 positive, 3 negative or no effect

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

  1. negative
  2. no effect
  3. negative

30 papers more in this group

See all 34 papers →

fertilization · yield · Ricinus communis (castor bean)Positive and negative results

43 papers: 40 positive, 3 negative or no effect

39 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

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

39 papers more in this group

See all 43 papers →

mycorrhiza · yield · Ricinus communis (castor bean)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

mycorrhiza · quality: oil · Ricinus communis (castor bean)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

fertilization · quality: protein · Ricinus communis (castor bean)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

8 of 13 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.