Paper · 2022 · Sains Tanah - Journal of Soil Science and Agroclimatology

Influence of biochar amendments on the soil quality indicators of sandy loam soils under cassava–peanut cropping sequence in the semi-arid tropics of Northern Lombok, Indonesia

Sukartono Sukartono; Bambang Hari Kusumo; Suwardji Suwardji; et al.

10
claims
23
verbatim quotes
6
citations
1
research areas
✓
Open access · cc-by-nc

Abstract

Low nutrient retention and soil organic matter depletion are the major challenges of the cropping system in the sandy loam soils of Northern Lombok, Indonesia. A field experiment was conducted to evaluate the influence of biochar-based organic amendments on the soil quality of sandy loam soils under cassava (Manihot Esculenta, Crants)–peanut (Arachis Hypogeae L.) cropping sequence. The treatments were as follows: biochar (10 ton ha-1) and rice straw (3 ton ha-1) (B1); biochar (10 ton ha-1), cattle manure (10 ton ha-1), and rice straw (3 ton ha-1) (B2); biochar (10 ton ha-1) and cattle manure (10 ton ha-1) (B3); biochar (10 ton ha-1) and cattle manure (10 ton ha-1) plus rice straw mulch (3 ton ha-1) applied on surface soils (B4), and without organic amendments (B0) as control. Results showed that the biochar-based organic amendments significantly improved several soil quality indicators such as SOC, total N, available P, Ca, cation-exchange capacity (CEC), and aggregate stability but had no significant effect on pH, K, and Mg. Improvement in soil quality was strongly indicated by an increase in the growth and yield of cassava and peanuts. Treatments B1, B2, B3, and B4 generally had a comparable effect on soil parameters and tended to improve the growth and yield of cassava and peanuts. Cassava was responsive to treatments B2 (biochar, cattle manure, and rice straw) and B3 (biochar and cattle manure) with its actual yield of 27 tons ha−1, which is a 40% increase compared with that in the control. As a secondary crop growing after cassava, peanuts also exhibited higher yields in all amended plots compared with that in the control. The highest yield was obtained in B2 (1.38 ton ha−1), followed by B4 (1.36 ton ha−1), B1 (1.33 ton ha−1), and B3 (1.25 ton ha−1). In conclusion, the incorporation of biochar, cattle manure, and crop residues (rice straw) into soils is a promising option to maintain soil quality and sustainably produce cassava and peanuts in the sandy loam soils of the semi-arid tropics of Lombok, Indonesia.

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 10

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biochar-based organic amendments significantly improved soil quality indicators (SOC, total N, available P, Ca, CEC, aggregate stability) relative to unamended plots in a cassava-peanut field experiment.

Treatment
biochar-based organic amendmentse2
Outcome
SOC, total N, available P, Ca, cation-exchange capacity (CEC), and aggregate stabilitye2
Direction
significantly improvede2
Comparator
without organic amendments (B0)e3
Setting
field experimente1

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e1

“A field experiment was conducted to evaluate the influence of biochar-based organic amendments on the soil quality of sandy loam soils under cassava (Manihot Esculenta, Crants)–peanut (Arachis Hypogeae L.) cropping sequence”

✓ located verbatim in the source · abstract, characters 160–383 · show in text ↑
e2

“Results showed that the biochar-based organic amendments significantly improved several soil quality indicators such as SOC, total N, available P, Ca, cation-exchange capacity (CEC), and aggregate stability but had no significant effect on pH, K, and Mg”

✓ located verbatim in the source · abstract, characters 787–1040 · show in text ↑
e3

“without organic amendments (B0) as control”

✓ located verbatim in the source · abstract, characters 743–785 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Biochar-based organic amendments had no significant effect on soil pH, K and Mg.

Treatment
biochar-based organic amendmentse2
Outcome
pH, K, and Mge2
Direction
no significant effecte2
Comparator
without organic amendments (B0)e3

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e1

“A field experiment was conducted to evaluate the influence of biochar-based organic amendments on the soil quality of sandy loam soils under cassava (Manihot Esculenta, Crants)–peanut (Arachis Hypogeae L.) cropping sequence”

✓ located verbatim in the source · abstract, characters 160–383 · show in text ↑
e2

“Results showed that the biochar-based organic amendments significantly improved several soil quality indicators such as SOC, total N, available P, Ca, cation-exchange capacity (CEC), and aggregate stability but had no significant effect on pH, K, and Mg”

✓ located verbatim in the source · abstract, characters 787–1040 · show in text ↑
e3

“without organic amendments (B0) as control”

✓ located verbatim in the source · abstract, characters 743–785 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Growth and yield of cassava and peanuts increased with soil quality improvement under the amendments.

Treatment
biochar-based organic amendmentse2
Outcome
growth and yielde4
Direction
an increasee4

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e1

“A field experiment was conducted to evaluate the influence of biochar-based organic amendments on the soil quality of sandy loam soils under cassava (Manihot Esculenta, Crants)–peanut (Arachis Hypogeae L.) cropping sequence”

✓ located verbatim in the source · abstract, characters 160–383 · show in text ↑
e2

“Results showed that the biochar-based organic amendments significantly improved several soil quality indicators such as SOC, total N, available P, Ca, cation-exchange capacity (CEC), and aggregate stability but had no significant effect on pH, K, and Mg”

✓ located verbatim in the source · abstract, characters 787–1040 · show in text ↑
e4

“Improvement in soil quality was strongly indicated by an increase in the growth and yield of cassava and peanuts”

✓ located verbatim in the source · abstract, characters 1042–1154 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cassava actual yield under B2 and B3 was 27 tons ha−1, a 40% increase over the control.

Treatment
B2 (biochar, cattle manure, and rice straw) and B3 (biochar and cattle manure)e5
Outcome
actual yielde5
Direction
increasee5
Value
40%e5
Qualifier
27 tons ha−1e5
Comparator
the controle5

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e1

“A field experiment was conducted to evaluate the influence of biochar-based organic amendments on the soil quality of sandy loam soils under cassava (Manihot Esculenta, Crants)–peanut (Arachis Hypogeae L.) cropping sequence”

✓ located verbatim in the source · abstract, characters 160–383 · show in text ↑
e5

“Cassava was responsive to treatments B2 (biochar, cattle manure, and rice straw) and B3 (biochar and cattle manure) with its actual yield of 27 tons ha−1, which is a 40% increase compared with that in the control”

✓ located verbatim in the source · abstract, characters 1306–1518 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Peanut yields were higher in all amended plots than in the control.

Taxon
peanutsArachis hypogaeae6
Treatment
all amended plotse6
Outcome
yieldse6
Direction
highere6
Comparator
the controle6

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e1

“A field experiment was conducted to evaluate the influence of biochar-based organic amendments on the soil quality of sandy loam soils under cassava (Manihot Esculenta, Crants)–peanut (Arachis Hypogeae L.) cropping sequence”

✓ located verbatim in the source · abstract, characters 160–383 · show in text ↑
e6

“As a secondary crop growing after cassava, peanuts also exhibited higher yields in all amended plots compared with that in the control”

✓ located verbatim in the source · abstract, characters 1520–1654 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The highest peanut yield was obtained under B2 (1.38 ton ha−1).

Taxon
peanutsArachis hypogaeae6
Treatment
B2e7
Outcome
yielde7
Direction
higheste7
Value
1.38 ton ha−1e7

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e6

“As a secondary crop growing after cassava, peanuts also exhibited higher yields in all amended plots compared with that in the control”

✓ located verbatim in the source · abstract, characters 1520–1654 · show in text ↑
e7

“The highest yield was obtained in B2 (1.38 ton ha−1), followed by B4 (1.36 ton ha−1), B1 (1.33 ton ha−1), and B3 (1.25 ton ha−1)”

✓ located verbatim in the source · abstract, characters 1656–1784 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Peanut yields under B4 followed B2, with 1.36 ton ha−1, then B1 and B3 at 1.33 and 1.25 ton ha−1.

Taxon
peanutsArachis hypogaeae6
Treatment
B4e7
Outcome
yielde7
Direction
followed bye7
Value
1.36 ton ha−1e7
Qualifier
B1 (1.33 ton ha−1), and B3 (1.25 ton ha−1)e7
Comparator
B2e7

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e6

“As a secondary crop growing after cassava, peanuts also exhibited higher yields in all amended plots compared with that in the control”

✓ located verbatim in the source · abstract, characters 1520–1654 · show in text ↑
e7

“The highest yield was obtained in B2 (1.38 ton ha−1), followed by B4 (1.36 ton ha−1), B1 (1.33 ton ha−1), and B3 (1.25 ton ha−1)”

✓ located verbatim in the source · abstract, characters 1656–1784 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatments B1 to B4 tended to improve cassava and peanut growth and yield.

Treatment
Treatments B1, B2, B3, and B4e2
Outcome
growth and yielde2
Direction
tended to improvee2

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e1

“A field experiment was conducted to evaluate the influence of biochar-based organic amendments on the soil quality of sandy loam soils under cassava (Manihot Esculenta, Crants)–peanut (Arachis Hypogeae L.) cropping sequence”

✓ located verbatim in the source · abstract, characters 160–383 · show in text ↑
e2

“Treatments B1, B2, B3, and B4 generally had a comparable effect on soil parameters and tended to improve the growth and yield of cassava and peanuts”

✓ located verbatim in the source · abstract, characters 1156–1304 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Treatments B1 to B4 had a comparable effect on soil parameters.

Outcome
soil parameterse2
Qualifier
a comparable effecte2

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e1

“A field experiment was conducted to evaluate the influence of biochar-based organic amendments on the soil quality of sandy loam soils under cassava (Manihot Esculenta, Crants)–peanut (Arachis Hypogeae L.) cropping sequence”

✓ located verbatim in the source · abstract, characters 160–383 · show in text ↑
e2

“Treatments B1, B2, B3, and B4 generally had a comparable effect on soil parameters and tended to improve the growth and yield of cassava and peanuts”

✓ located verbatim in the source · abstract, characters 1156–1304 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Incorporating biochar, cattle manure and rice straw into soils is a promising option to maintain soil quality and sustainably produce cassava and peanuts.

Treatment
biochar, cattle manure, and crop residues (rice straw)e2
Outcome
maintain soil quality and sustainably produce cassava and peanutse2

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e1

“A field experiment was conducted to evaluate the influence of biochar-based organic amendments on the soil quality of sandy loam soils under cassava (Manihot Esculenta, Crants)–peanut (Arachis Hypogeae L.) cropping sequence”

✓ located verbatim in the source · abstract, characters 160–383 · show in text ↑
e2

“the incorporation of biochar, cattle manure, and crop residues (rice straw) into soils is a promising option to maintain soil quality and sustainably produce cassava and peanuts”

✓ located verbatim in the source · abstract, characters 1801–1978 · show in text ↑

Oryza sativa · yield · Manihot esculenta (cassava)Results 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 →

organic · nutrient: content · Manihot esculenta (cassava)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. no effect
See all 2 papers →

organic · yield · Manihot esculenta (cassava)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

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fertilization · yield · Manihot esculenta (cassava)Positive and negative results

153 papers: 141 positive, 12 negative or no effect

140 papers in the same direction as this paper · 10 in the opposite direction · 2 reporting no difference from an alternative

  1. positive
  2. negative
  3. no effect

149 papers more in this group

See all 153 papers →

biochar · nutrient: content · Manihot esculenta (cassava)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 →

biochar · yield · Manihot esculenta (cassava)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 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.