Paper · 2020 · Research Society and Development

Interaction of chemical attributes of an Red Oxisol in the brazilian Savannah cultivated with soy under two management systems

Paulo Ricardo Teodoro da Silva; Rafael Montanari; César Gustavo da Rocha Lima; et al.

4
claims
4
verbatim quotes
2
citations
1
research areas
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Open access · cc-by

Abstract

Soil compaction and nutrient accumulation on the surface have been a major problem. Soil scarification can alter nutrient variability due to partial soil mobilization. This research aimed to evaluate by multivariate techniques the main chemical attributes of the soil that best relate to soybean yield and production components. The experiment was performed in a dystrophic Red Oxisol, in the agricultural year of 2015/16, in Savannah area located in the Selvíria County, MS, Brazil. The experiment consisted of two cultivated areas, one under no-tillage system (NTS) implemented 13 years ago and another in minimum cultivation system scarified (MCSS). Were evaluated: population of plants, first pod insertion height, plant height, the number of pods per plant, grain per plant, grain per pod, the weight of 100 grains, grain yield and soil chemical attributes. Soybean yield was higher in NTS when compared to MCSS scarified. The values of pH, calcium content, magnesium and phosphorus in the layer of 0-0.10 m, as well as the content of K in 0.10-0.20 m, are the attributes that most contributed to the increase of soybean productivity in NTS and MCSS.

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

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Claims 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soybean yield was higher under no tillage than scarified minimum cultivation.

Taxon
SoybeanGlycine maxe0
Treatment
NTSe0
Outcome
yielde0
Direction
highere0
Comparator
MCSS scarifiede0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Soybean yield was higher in NTS when compared to MCSS scarified.”

✓ located verbatim in the source · abstract, characters 863–927 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Surface soil pH was among the attributes contributing most to increased soybean productivity.

Taxon
soybeanGlycine maxe0
Organ / stage
layer of 0-0.10 me0
Compound
pHe0
Outcome
soybean productivitye0
Direction
increasee0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The values of pH, calcium content, magnesium and phosphorus in the layer of 0-0.10 m, as well as the content of K in 0.10-0.20 m, are the attributes that most contributed to the increase of soybean productivity in NTS and MCSS.”

✓ located verbatim in the source · abstract, characters 928–1155 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Surface soil calcium, magnesium, and phosphorus content were among the attributes contributing most to increased soybean productivity.

Taxon
soybeanGlycine maxe0
Compound
calcium content, magnesium and phosphoruse0
Outcome
soybean productivitye0
Direction
increasee0
Setting
layer of 0-0.10 me0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The values of pH, calcium content, magnesium and phosphorus in the layer of 0-0.10 m, as well as the content of K in 0.10-0.20 m, are the attributes that most contributed to the increase of soybean productivity in NTS and MCSS.”

✓ located verbatim in the source · abstract, characters 928–1155 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium content at 0.10-0.20 m was among the attributes contributing most to increased soybean productivity.

Taxon
soybeanGlycine maxe0
Compound
Ke0
Outcome
soybean productivitye0
Direction
increasee0
Setting
0.10-0.20 me0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The values of pH, calcium content, magnesium and phosphorus in the layer of 0-0.10 m, as well as the content of K in 0.10-0.20 m, are the attributes that most contributed to the increase of soybean productivity in NTS and MCSS.”

✓ located verbatim in the source · abstract, characters 928–1155 · show in text ↑

tillage · yield · Glycine max (soybean)Positive and negative results

390 papers: 264 positive, 126 negative or no effect

263 papers in the same direction as this paper · 100 in the opposite direction · 26 reporting no difference from an alternative

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

386 papers more in this group

See all 390 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.