Paper · 2018 · International Journal of Environmental Sciences & Natural Resources

The Effect of Chicken Manure and Corn Cob Biochar on Soil Fertility and Crop Yield on Intercropping Planting Pattern of Cassava and Corn

Yuniwati ED

5
claims
5
verbatim quotes
6
citations
2
research areas
✓
Open access · cc-by

Abstract

The use of chicken manure and corn cob Biochar is proven to be able to improve soil quality, plant growth crop yield of cassava and corn. This study also aims to show that different types of biochar applications (chicken manure and corncob biochar) are able to improve soil physical and chemical properties, the yield of cassava and corn kernels biomass. This study was conducted in a farmer field in Batu, about 15 km southeast of Malang, East Java, Indonesia. The study was conducted on alfisol land having 8% surface slope. The method used was field experiment using Randomized Block Design (RBD) with the following treatment:

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 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chicken manure and corn cob biochar improved soil quality.

Treatment
chicken manure and corn cob Biochare0
Outcome
soil qualitye0
Direction
improvee0

Not reportedTaxonComparator

Verbatim

e0

“The use of chicken manure and corn cob Biochar is proven to be able to improve soil quality, plant growth crop yield of cassava and corn.”

✓ located verbatim in the source · abstract, characters 0–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chicken manure and corn cob biochar improved cassava growth.

Treatment
chicken manure and corn cob Biochare0
Outcome
plant growthe0
Direction
improvee0

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

e0

“The use of chicken manure and corn cob Biochar is proven to be able to improve soil quality, plant growth crop yield of cassava and corn.”

✓ located verbatim in the source · abstract, characters 0–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chicken manure and corn cob biochar improved corn growth.

Treatment
chicken manure and corn cob Biochare0
Outcome
plant growthe0
Direction
improvee0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The use of chicken manure and corn cob Biochar is proven to be able to improve soil quality, plant growth crop yield of cassava and corn.”

✓ located verbatim in the source · abstract, characters 0–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chicken manure and corn cob biochar improved cassava crop yield.

Treatment
chicken manure and corn cob Biochare0
Outcome
crop yielde0
Direction
improvee0

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

e0

“The use of chicken manure and corn cob Biochar is proven to be able to improve soil quality, plant growth crop yield of cassava and corn.”

✓ located verbatim in the source · abstract, characters 0–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chicken manure and corn cob biochar improved corn crop yield.

Treatment
chicken manure and corn cob Biochare0
Outcome
crop yielde0
Direction
improvee0

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The use of chicken manure and corn cob Biochar is proven to be able to improve soil quality, plant growth crop yield of cassava and corn.”

✓ located verbatim in the source · abstract, characters 0–137 · show in text ↑

Zea mays subsp. mays · yield · Zea mays (maize)Results differ

292 papers: 196 positive, 96 negative or no effect

195 papers in the same direction as this paper · 85 in the opposite direction · 11 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

288 papers more in this group

See all 292 papers →

Zea mays subsp. mays · growth · Zea mays (maize)Positive and negative results

94 papers: 60 positive, 34 negative or no effect

59 papers in the same direction as this paper · 31 in the opposite direction · 3 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

90 papers more in this group

See all 94 papers →

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

71 papers: 65 positive, 6 negative or no effect

64 papers in the same direction as this paper · 6 in the opposite direction

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

67 papers more in this group

See all 71 papers →

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 · growth · Zea mays (maize)Positive and negative results

190 papers: 180 positive, 10 negative or no effect

179 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

186 papers more in this group

See all 190 papers →

biochar · yield · Zea mays (maize)Positive and negative results

193 papers: 175 positive, 18 negative or no effect

174 papers in the same direction as this paper · 15 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

189 papers more in this group

See all 193 papers →

fertilization · growth · Zea mays (maize)Positive and negative results

1,365 papers: 1,196 positive, 169 negative or no effect

1,195 papers in the same direction as this paper · 149 in the opposite direction · 20 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

1,361 papers more in this group

See all 1,365 papers →

fertilization · yield · Zea mays (maize)Positive and negative results

3,908 papers: 3,485 positive, 423 negative or no effect

3,484 papers in the same direction as this paper · 338 in the opposite direction · 85 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

3,904 papers more in this group

See all 3,908 papers →

8 of 10 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.