Abstract
For those soils that require deep tillage to alleviate soil compaction, subsoiling can be an expensive andtime-consuming tillage event. Alternative tillage methods are needed which conserve natural resources without sacrificingcotton yields. An experiment was conducted in the Tennessee Valley region of north Alabama to determine how frequentlydeep tillage is needed to alleviate soil compaction problems in these soils. Three different subsoilers (an in-row subsoiler andtwo bentleg subsoilers) were tested against a no-till treatment to determine if differences in crop productivity or soil conditioncould be detected. Annual subsoiling resulted in reduced bulk density compared to biennial subsoiling, triennial subsoiling,or no subsoiling. Reductions in draft force were also found for annual subsoiling. However, cotton yield results over a two-yearperiod from tillage three-years previous, two-years previous, and one year previous found no differences.
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Claims 3
Claim · model-written summary
Annual subsoiling reduced bulk density relative to biennial, triennial, and no subsoiling.
- Taxon
- COTTON
Gossypium hirsutumt0 - Treatment
- Annual subsoilinge0
- Outcome
- bulk densitye0
- Direction
- reducede0
- Comparator
- biennial subsoiling, triennial subsoiling,or no subsoilinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“COTTON”
e0“Annual subsoiling resulted in reduced bulk density compared to biennial subsoiling, triennial subsoiling,or no subsoiling.”
Claim · model-written summary
Annual subsoiling reduced draft force.
- Taxon
- COTTONGossypium hirsutumt0
- Treatment
- annual subsoilinge0
- Outcome
- draft forcee0
- Direction
- Reductionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“COTTON”
e0“Reductions in draft force were also found for annual subsoiling.”
Claim · model-written summary
Cotton yield did not differ among tillage one, two, or three years previously over two years.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- tillage three-years previous, two-years previous, and one year previouse0
- Outcome
- cotton yielde0
- Direction
- no differencese0
- Qualifier
- over a two-yearperiode0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton yield results over a two-yearperiod from tillage three-years previous, two-years previous, and one year previous found no differences.”
The same questions in other papers
tillage · soil: physics · Gossypium hirsutum (cotton)Positive and negative results
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See all 159 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.