Paper · 2016 · Engenharia Agrícola

Physical properties of soil and soybean yield under cover crops

Diego dos Santos; Eduardo Godoy de Souza; Lúcia Helena Pereira Nóbrega; et al.

3
claims
4
verbatim quotes
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citations
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research areas
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Open access · cc-by

Abstract

Cover crops are important to improve soil quality. However, soil properties usually have some spatial dependence. Thus, this study aimed at evaluating the performance of winter cover crops on physical properties of soil and soybean yield using thematic maps. There were five winter treatments: black oat; intercropping 1 (forage turnip and black oat); intercropping 2 (forage turnip, black oat and common vetch), wheat and control. Macro and microporosity, total porosity, bulk density and water content of soil, from 0 - 0.1 m depth, were evaluated after winter cover crops management. Soybean was sown on the whole area at summertime after winter cover crops management and its yield was determined for each treatment. Maps for each treatment were elaborated and compared to the control using the relative deviation coefficient (RDC). The cover crops have improved total macroporosity of soil in some regions of the studied area. The black oat was more efficient in maintaining higher water content of soil and it can be recommended to decrease bulk density.

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 3

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Winter cover crops improved total macroporosity of soil in some regions of the studied area compared with the control.

Taxon
cover cropse1
Treatment
cover cropse1
Outcome
total macroporosity of soile1
Direction
improvede1
Qualifier
in some regions of the studied areae1
Comparator
controle3

Verbatim

e1

“The cover crops have improved total macroporosity of soil in some regions of the studied area”

✓ located verbatim in the source · abstract, characters 837–930 · show in text ↑
e3

“Maps for each treatment were elaborated and compared to the control using the relative deviation coefficient (RDC)”

✓ located verbatim in the source · abstract, characters 721–835 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Black oat was more efficient in maintaining higher water content of soil.

Taxon
black oatAvena strigosae2
Treatment
black oate2
Outcome
water content of soile2
Direction
highere2

Not reportedComparator

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

Avena strigosa
Avena strigosa · TaxonMiquel Pujol Palol · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e2

“The black oat was more efficient in maintaining higher water content of soil and it can be recommended to decrease bulk density”

✓ located verbatim in the source · abstract, characters 932–1059 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Black oat can be recommended to decrease bulk density.

Taxon
black oatAvena strigosae2
Outcome
bulk densitye2
Direction
decreasee2

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

Avena strigosa
Avena strigosa · TaxonMiquel Pujol Palol · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e2

“The black oat was more efficient in maintaining higher water content of soil and it can be recommended to decrease bulk density”

✓ located verbatim in the source · abstract, characters 932–1059 · show in text ↑