Paper · 2023 · IOP Conference Series Earth and Environmental Science

Mitigation of drought disaster in sorghum (Sorghum bicolor l. Moench) in Ultisol soil with application of soil amendments and NPK for diversification and improvement of food security

C N Ichsan; W S Mahfira; A Halim; et al.

4
claims
10
verbatim quotes
2
citations
2
research areas
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Open access · cc-by

Abstract

Abstract Drought is a common obstacle in crop cultivation. One third of the world’s food land is experiencing drought, which is increasing from year to year. Mitigation measures are needed to maintain national food security. The use of compost and biochar on Ultisol soils can increase crop yields and productivity under drought stress. Research on Jantho Ultisol soil with low fertility using a soil amadement of 10 t. ha −1 , compost can increase soil pH from 4.57 to 5.97 at 50% field capacity soil moisture, an increase in sorghum yield from 1.54 t.ha −1 to 3.37 t.ha −1 . Application of biochar 10 t.ha −1 increased pH from 4.57 to 5.03 at 50% field capacity soil moisture, an increase in yield from 1.5 4 t.ha −1 to 2.65 t.ha −1 with 600 kg ha −1 NP K fertilization at 50% soil field capacity moisture. The application of compost and biochar was effective in increasing soil pH and sorghum yield on Ultisol soil. This has mitigated the impact of drought and is an opportunity to increase productivity, diversify of food to increase food security towards food 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 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Compost increased soil pH from 4.57 to 5.97.

Taxon
sorghumSorghumt0
Treatment
composte0
Outcome
soil pHe0
Direction
increasee0
Value
5.97e0
Qualifier
4.57e0

Not reportedComparator

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“10 t. ha −1 , compost can increase soil pH from 4.57 to 5.97 at 50% field capacity soil moisture”

✓ located verbatim in the source · abstract, characters 414–510 · show in text ↑
t0

“sorghum (Sorghum bicolor l. Moench)”

✓ located verbatim in the source · title, characters 34–69 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Compost increased sorghum yield from 1.54 to 3.37 t.ha −1.

Taxon
sorghumSorghumt0
Treatment
composte1
Outcome
sorghum yielde0
Direction
increasee0
Value
3.37 t.ha −1e0
Qualifier
1.54 t.ha −1e0

Not reportedComparator

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“an increase in sorghum yield from 1.54 t.ha −1 to 3.37 t.ha −1”

✓ located verbatim in the source · abstract, characters 512–574 · show in text ↑
e1

“10 t. ha −1 , compost can increase soil pH from 4.57 to 5.97 at 50% field capacity soil moisture”

✓ located verbatim in the source · abstract, characters 414–510 · show in text ↑
t0

“sorghum (Sorghum bicolor l. Moench)”

✓ located verbatim in the source · title, characters 34–69 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar increased soil pH from 4.57 to 5.03.

Taxon
sorghumSorghumt0
Treatment
biochar 10 t.ha −1e0
Outcome
pHe0
Direction
increasede0
Value
5.03e0
Qualifier
4.57e0

Not reportedComparator

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of biochar 10 t.ha −1 increased pH from 4.57 to 5.03 at 50% field capacity soil moisture”

✓ located verbatim in the source · abstract, characters 577–677 · show in text ↑
t0

“sorghum (Sorghum bicolor l. Moench)”

✓ located verbatim in the source · title, characters 34–69 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar increased yield from 1.5 4 to 2.65 t.ha −1 with NPK fertilization.

Taxon
sorghumSorghumt0
Treatment
biochar 10 t.ha −1e1
Outcome
yielde0
Direction
increasee0
Value
2.65 t.ha −1e0
Qualifier
600 kg ha −1 NP K fertilizatione0

Not reportedComparator

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“an increase in yield from 1.5 4 t.ha −1 to 2.65 t.ha −1 with 600 kg ha −1 NP K fertilization at 50% soil field capacity moisture”

✓ located verbatim in the source · abstract, characters 679–807 · show in text ↑
e1

“Application of biochar 10 t.ha −1 increased pH”

✓ located verbatim in the source · abstract, characters 577–623 · show in text ↑
t0

“sorghum (Sorghum bicolor l. Moench)”

✓ located verbatim in the source · title, characters 34–69 · show in text ↑

biochar · yield · SorghumPositive and negative results

14 papers: 13 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

10 papers more in this group

See all 14 papers →

fertilization · soil: chemistry · SorghumPositive and negative results

35 papers: 34 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

31 papers more in this group

See all 35 papers →

fertilization · yield · SorghumPositive and negative results

446 papers: 418 positive, 28 negative or no effect

417 papers in the same direction as this paper · 21 in the opposite direction · 7 reporting no difference from an alternative

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

442 papers more in this group

See all 446 papers →

biochar · soil: chemistry · SorghumResults agree

9 papers: 9 positive, 0 negative or no effect

8 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 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.