Abstract
In no-tillage systems, soil compaction has caused negative impacts on crop productivity and soil quality. The objective of this study was to evaluate the soil physical quality after different crops of the second season: maize, sorghum, and millet in compacted and uncompacted soils, in addition to evaluating the performance of soybean in succession in Rhodic Ferralsol under no-tillage (NT) in the Brazilian Cerrado biome. A field experiment was conducted during the second season of 2019 and the first season of 2019/20 in Rio Verde, Brazil. The experimental design used randomized blocks in a 3 × 2 factorial scheme, with six replications. The first factor corresponded to the cultivation of maize, sorghum, and millet; the second factor was the cultivation of these crops in compacted and uncompacted soils. The physical properties of the soils in the 0–0.1 and 0.1–0.2 m depth layers were evaluated after the second season of cultivation, in addition to the agronomic characteristics of the soybean cultivated in succession. The results indicate that the compaction influenced the soil physical quality, mainly in the 0.1–0.2 m layer, reflecting a decrease in the performance of the soybean crop (i.e., the plant height, number of pods per plant, and grain yield). The use of the second-season crop of millet improved the soil physical properties of penetration resistance and macroporosity and improved the water/air relation. The use of millet provided a reduction of up to 20% in the soil penetration resistance. About 10% more soybean was produced after cultivation in succession to millet compared to maize and sorghum.
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Claims 5
Claim · model-written summary
Soil compaction decreased the performance of the succeeding soybean crop, namely plant height, number of pods per plant and grain yield, relative to uncompacted soil.
- Taxon
- soybean
Glycine maxe0 - Treatment
- compactione2
- Outcome
- the plant height, number of pods per plant, and grain yielde0
- Direction
- decreasee0
- Comparator
- uncompacted soilse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reflecting a decrease in the performance of the soybean crop (i.e., the plant height, number of pods per plant, and grain yield)”
e1“maize, sorghum, and millet in compacted and uncompacted soils, in addition”
e2“the compaction influenced the soil physical quality”
Claim · model-written summary
Compaction influenced soil physical quality, mainly in the 0.1-0.2 m layer.
Not reportedTaxonComparatorDirection
Verbatim
e0“the compaction influenced the soil physical quality, mainly in the 0.1–0.2 m layer”
Claim · model-written summary
Using millet as the second-season crop improved the soil physical properties penetration resistance and macroporosity and improved the water/air relation.
- Taxon
- millete0
- Treatment
- second-season crop of millete0
- Outcome
- penetration resistance and macroporositye0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“The use of the second-season crop of millet improved the soil physical properties of penetration resistance and macroporosity and improved the water/air relation”
Claim · model-written summary
Using millet reduced soil penetration resistance by up to 20%.
- Taxon
- millete0
- Treatment
- use of millete0
- Outcome
- soil penetration resistancee0
- Direction
- reductione0
- Value
- up to 20%e0
Not reportedComparator
Verbatim
e0“The use of millet provided a reduction of up to 20% in the soil penetration resistance”
Claim · model-written summary
About 10% more soybean was produced when grown in succession to millet than in succession to maize and sorghum.
- Taxon
- soybeanGlycine maxe0
- Treatment
- cultivation in succession to millete0
- Outcome
- soybean was producede0
- Direction
- moree0
- Value
- About 10%e0
- Comparator
- maize and sorghume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“About 10% more soybean was produced after cultivation in succession to millet compared to maize and sorghum”
The same questions in other papers
tillage · yield · Glycine max (soybean)Positive and negative results
125 papers in the same direction as this paper · 264 in the opposite direction
- negative
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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.