Abstract
SUMMARY Cultivation of less productive soils such as closed landfills has become convenient because European subsidies covered part of the risk to obtain production. Aim of the research was to evaluate grain yields of maize hybrids belonging to different maturity classes (FAO 200, 300 and 400) (Gretzmacher, R. (1979). Die Bodenkultur 30:256--280) grown on closed landfills by the adoption of two minimum tillage methods (chisel plowing at 0.35 m plus disk harrowing at 0.20 m, or only disk harrowing at 0.20 m). Maize cultivation inserted in a winter cereal rotation had a grain production ranging from 4.6 t ha −1 (FAO 200, disk harrowing only) to 8.3 t ha −1 (FAO class 400, chisel plowing plus disk harrowing) in the two considered years (2011 and 2012). The adoption of chisel plowing coupled with disk harrowing reduced yield fluctuation between years, and furnished higher yield performance if compared with the single disk harrowing passage. The best growing hybrid cycles were those belonging to FAO class 300 with production similar to that of the longest maturity class, and with moisture content equal to the shortest maturity class.
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Claims 6
Claim · model-written summary
Maize yield ranged from 4.6 t ha −1 under FAO 200 and disk harrowing only to 8.3 t ha −1 under FAO class 400 and combined tillage.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maize cultivation inserted in a winter cereal rotation had a grain production ranging from 4.6 t ha −1 (FAO 200, disk harrowing only) to 8.3 t ha −1 (FAO class 400, chisel plowing plus disk harrowing) in the two considered years (2011 and 2012)”
Claim · model-written summary
The FAO class 400 hybrid under chisel plowing plus disk harrowing yielded 8.3 t ha −1.
- Material
- FAO class 400e0
- Treatment
- chisel plowing plus disk harrowinge0
- Outcome
- grain productione0
- Value
- 8.3 t ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maize cultivation inserted in a winter cereal rotation had a grain production ranging from 4.6 t ha −1 (FAO 200, disk harrowing only) to 8.3 t ha −1 (FAO class 400, chisel plowing plus disk harrowing) in the two considered years (2011 and 2012)”
Claim · model-written summary
Chisel plowing with disk harrowing reduced year-to-year maize yield fluctuation relative to disk harrowing alone.
- Treatment
- chisel plowing coupled with disk harrowinge0
- Outcome
- yield fluctuation between yearse0
- Direction
- reducede0
- Comparator
- single disk harrowing passagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The adoption of chisel plowing coupled with disk harrowing reduced yield fluctuation between years, and furnished higher yield performance if compared with the single disk harrowing passage”
e1“Maize cultivation”
Claim · model-written summary
Chisel plowing with disk harrowing gave higher maize yield than disk harrowing alone.
- Treatment
- chisel plowing coupled with disk harrowinge0
- Outcome
- yield performancee0
- Direction
- highere0
- Comparator
- single disk harrowing passagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The adoption of chisel plowing coupled with disk harrowing reduced yield fluctuation between years, and furnished higher yield performance if compared with the single disk harrowing passage”
e1“Maize cultivation”
Claim · model-written summary
FAO class 300 hybrids had production similar to the longest maturity class.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best growing hybrid cycles were those belonging to FAO class 300 with production similar to that of the longest maturity class”
e1“Maize cultivation”
Claim · model-written summary
FAO class 300 hybrids had moisture content equal to the shortest maturity class.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with moisture content equal to the shortest maturity class”
e1“FAO class 300”
e2“Maize cultivation”
The same questions in other papers
tillage · yield · Zea mays (maize)Positive and negative results
811 papers in the same direction as this paper · 230 in the opposite direction · 57 reporting no difference from an alternative
- no effect
- negative
- no effect
1,095 papers more in this group
See all 1,099 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.