Abstract
ABSTRACT: The present study assessed soil preparation in terms of the advantages it provides in lowering the physical obstacles and their influence on soybean cultivation, with reference to its establishment, development and yield, apart from quantification of the energy demand for tractor performance. The experiments were performed in the field adopting the randomized block design with a two-factor scheme (6x2). Factor A included a variety of soil preparations performed during the off-season of the soybean crop. Sowing was accomplished using the same fertilizer deposition mechanism only, and the areas having no soil preparation done were sown using various other fertilizer deposition mechanisms from the seeder, namely: (A1) sowing without soil preparation (SSPS)+double disc in the seeder (DD); (A2) SSPS+turbo disc (DT); (A3) SSPS+furrowing rod (HS); (A4) plow harrow+DD; (A5) scarified+DD and (A6) subsoiled+DD. Soil preparations before sowing were done on days 52 and 98 days, respectively, during the first and second harvests. Factor B included two soybean cultivars, namely: (B1) Nidera 6601 and (B2) Brasmax Valente. No interaction was observed between the factors investigated. While the scarification+DD showed the need for higher fuel consumption, the results were increased productivity. For the seeder-linked mechanisms, the HS gives more extensive root development of the plants and grain yield. On the contrary, while DD and DT show the combination of the highest operational capacity and lower fuel usage, this is related to lower grain yield.
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Claims 8
Claim · model-written summary
Scarification with double disc soil preparation showed higher fuel consumption.
- Taxon
- soybean
Glycine maxt0 - Treatment
- scarification+DDe1
- Outcome
- fuel consumptione1
- Direction
- highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“establishment and productivity of soybean in the lowlands”
e1“While the scarification+DD showed the need for higher fuel consumption”
Claim · model-written summary
Scarification with double disc soil preparation increased soybean productivity.
- Taxon
- soybean
Glycine maxt0 - Treatment
- scarification+DDe1
- Outcome
- productivitye2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“establishment and productivity of soybean in the lowlands”
e1“While the scarification+DD showed the need for higher fuel consumption”
e2“the results were increased productivity”
Claim · model-written summary
The HS furrowing rod gave more extensive root development of soybean plants than the other seeder-linked mechanisms.
- Taxon
- soybean
Glycine maxt0 - Treatment
- HSe3
- Outcome
- root developmente3
- Direction
- more extensivee3
- Comparator
- seeder-linked mechanismse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“establishment and productivity of soybean in the lowlands”
e3“For the seeder-linked mechanisms, the HS gives more extensive root development of the plants and grain yield”
Claim · model-written summary
The HS furrowing rod gave higher soybean grain yield than the other seeder-linked mechanisms.
- Taxon
- soybean
Glycine maxt0 - Treatment
- HSe3
- Outcome
- grain yielde3
- Direction
- higherinferrede3
- Comparator
- seeder-linked mechanismse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“establishment and productivity of soybean in the lowlands”
e3“For the seeder-linked mechanisms, the HS gives more extensive root development of the plants and grain yield”
Claim · model-written summary
DD and DT combinations gave the highest operational capacity.
- Taxon
- soybean
Glycine maxt0 - Treatment
- DD and DTe6
- Outcome
- operational capacitye4
- Direction
- higheste4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“establishment and productivity of soybean in the lowlands”
e4“while DD and DT show the combination of the highest operational capacity and lower fuel usage”
e6“while DD and DT show the combination of the highest operational capacity and lower fuel usage, this is related to lower grain yield”
Claim · model-written summary
DD and DT combinations gave lower fuel usage.
- Taxon
- soybean
Glycine maxt0 - Treatment
- DD and DTe6
- Outcome
- fuel usagee4
- Direction
- lowere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“establishment and productivity of soybean in the lowlands”
e4“while DD and DT show the combination of the highest operational capacity and lower fuel usage”
e6“while DD and DT show the combination of the highest operational capacity and lower fuel usage, this is related to lower grain yield”
Claim · model-written summary
DD and DT combinations are related to lower soybean grain yield.
- Taxon
- soybean
Glycine maxt0 - Treatment
- DD and DTe6
- Outcome
- grain yielde6
- Direction
- lowere6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“establishment and productivity of soybean in the lowlands”
e6“while DD and DT show the combination of the highest operational capacity and lower fuel usage, this is related to lower grain yield”
Claim · model-written summary
No interaction was observed between soil preparation and soybean cultivar.
- Taxon
- soybean
Glycine maxt0 - Material
- Nidera 6601e1
- Treatment
- soil preparationse2
- Outcome
- interactione7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“establishment and productivity of soybean in the lowlands”
e7“No interaction was observed between the factors investigated”
e1“Factor B included two soybean cultivars, namely: (B1) Nidera 6601 and (B2) Brasmax Valente”
e2“Factor A included a variety of soil preparations”
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See all 168 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.