Paper · 2022 · AGRI-ENVIRONMENTAL SCIENCES

MIXTURES OF PHOSPHORUS SOURCES OF DIFFERENT SOLUBILITIES AND THE EFFICIENCY OF USE BY CORN IN INTERCROPPING WITH COVER CROPS

Luiz Paulo Benício; Leonardo Santos Collier

3
claims
6
verbatim quotes
1
citations
1
research areas
✓
Open access · cc-by-nc-nd

Abstract

Tropical soils have chemical characteristics that promote a fixation of the P element, making the phosphate fertilizers in these soils have low efficiency. The present work aimed to evaluate the efficiency of phosphate fertilization in the corn crop in different crop systems, different sources of P and mixture between these sources. It was adopted a completely randomized design with subdivided plots. The plots were formed by three treatments (system cultivation of corn): single corn, corn intercropped with Crotalaria juncea, and corn intercropped pigeon pea (Cajanus cajan). The subplots formed by five treatments, created by two P sources and three mixtures between them. The consortium with pigeon pea and crotalaria species reduced productivity regardless of the source or mix of sources used. In consortium cultivation, greater use is made of the applied fertilizer, which means that consortium cultivation can be a tool for improving levels of P use in Brazilian agriculture.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. Read at the source ↗

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Claims 3

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Intercropping with pigeon pea reduced corn productivity regardless of phosphorus source.

Treatment
corn intercropped pigeon pea (Cajanus cajan)e1
Interactor
pigeon peaCajanus cajane0other
Outcome
productivitye0
Direction
reducede0

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 ↗
Cajanus cajan
Cajanus cajan · InteractorFilo gèn' · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The consortium with pigeon pea and crotalaria species reduced productivity regardless of the source or mix of sources used”

✓ located verbatim in the source · abstract, characters 679–801 · show in text ↑
e1

“corn intercropped pigeon pea (Cajanus cajan)”

✓ located verbatim in the source · abstract, characters 535–579 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Intercropping with crotalaria reduced corn productivity regardless of phosphorus source.

Treatment
corn intercropped with Crotalaria junceae1
Interactor
Crotalaria junceaCrotalaria junceae1other
Outcome
productivitye0
Direction
reducede0

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 ↗
Crotalaria juncea
Crotalaria juncea · InteractorA16898 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The consortium with pigeon pea and crotalaria species reduced productivity regardless of the source or mix of sources used”

✓ located verbatim in the source · abstract, characters 679–801 · show in text ↑
e1

“corn intercropped with Crotalaria juncea”

✓ located verbatim in the source · abstract, characters 489–529 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping increased use of applied phosphorus fertilizer.

Treatment
consortium cultivatione0
Outcome
use is made of the applied fertilizere0
Direction
greatere0

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

“In consortium cultivation, greater use is made of the applied fertilizer”

✓ located verbatim in the source · abstract, characters 803–875 · show in text ↑
e1

“corn crop”

✓ located verbatim in the source · abstract, characters 240–249 · show in text ↑

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

292 papers: 196 positive, 96 negative or no effect

95 papers in the same direction as this paper · 196 in the opposite direction

  1. positive
  2. positive
  3. positive

288 papers more in this group

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Crotalaria juncea · yield · Zea mays (maize)Positive and negative results

30 papers: 27 positive, 3 negative or no effect

2 papers in the same direction as this paper · 27 in the opposite direction

  1. positive
  2. positive
  3. positive

26 papers more in this group

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Cajanus cajan · yield · Zea mays (maize)Positive and negative results

40 papers: 33 positive, 7 negative or no effect

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

  1. positive
  2. positive
  3. positive

36 papers more in this group

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

834 papers: 613 positive, 221 negative or no effect

220 papers in the same direction as this paper · 613 in the opposite direction

  1. positive
  2. positive
  3. positive

830 papers more in this group

See all 834 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.