Abstract
Inadequate and less vigorous crop stand is a constraint to adoption of conservation tillage in cotton ( Gossypium hirsutum L.) production. We evaluated the effects of tillage (conventional till, mulch‐till, no‐till), cropping system (cotton–winter fallow, cotton–winter rye, Secale cereale L.), and N source and rate (ammonium nitrate and poultry litter; 0, 100, and 200 kg N ha −1 ) on cotton seedling emergence on a Decatur silt loam soil (Typic Paleudults) in northern Alabama, from 1996 to 1998. Cotton seedling counts under no‐till were 40 to 150% greater than those under conventional till at 1 and 2 d during seedling emergence. Cotton–winter rye cropping system had 14 to 50% greater seedling counts than cotton–winter fallow cropping during the first 4 d of emergence in 1998. Poultry litter source of N gave 17 to 50% greater cotton seedling counts than ammonium nitrate during the first 4 d of emergence in 1998. In all these cases, the differences progressively narrowed down by the 4th day of seedling emergence. Cotton seedling counts were significantly correlated to cotton growth parameters and lint yield, especially in the drier year (1998). These results were attributed to soil moisture conservation during seedling emergence. Our results show that conservation tillage improved cotton germination, emergence, dry matter, and lint yield. Therefore, no‐till with winter rye cover cropping and poultry litter can be used for achieving early cotton seedling emergence and growth in the U.S. cotton belt where dryland cotton production systems are on the increase and safe disposal of poultry litter is becoming an environmental problem.
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Claims 8
Claim · model-written summary
No-till increased cotton seedling counts by 40 to 150% relative to conventional till at days 1 and 2 of emergence.
- Taxon
- Cotton
Gossypium hirsutume0 - Treatment
- no‐tille0
- Outcome
- seedling countse0
- Direction
- greatere0
- Value
- 40 to 150%e0
- Qualifier
- at 1 and 2 d during seedling emergencee0
- Comparator
- conventional tille0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton seedling counts under no‐till were 40 to 150% greater than those under conventional till at 1 and 2 d during seedling emergence”
Claim · model-written summary
Cotton with winter rye had 14 to 50% greater seedling counts than cotton with winter fallow during the first four emergence days in 1998.
- Taxon
- CottonGossypium hirsutume0
- Treatment
- Cotton–winter rye cropping systeme0
- Outcome
- seedling countse0
- Direction
- greatere0
- Value
- 14 to 50%e0
- Qualifier
- during the first 4 d of emergence in 1998e0
- Comparator
- cotton–winter fallow croppinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton–winter rye cropping system had 14 to 50% greater seedling counts than cotton–winter fallow cropping during the first 4 d of emergence in 1998”
Claim · model-written summary
Poultry litter nitrogen increased cotton seedling counts by 17 to 50% relative to ammonium nitrate in the first four emergence days of 1998.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- Poultry litter source of Ne0
- Outcome
- seedling countse0
- Direction
- greatere0
- Value
- 17 to 50%e0
- Qualifier
- during the first 4 d of emergence in 1998e0
- Comparator
- ammonium nitratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Poultry litter source of N gave 17 to 50% greater cotton seedling counts than ammonium nitrate during the first 4 d of emergence in 1998”
Claim · model-written summary
The treatment differences in cotton seedling counts progressively narrowed by day four of emergence.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- differencese0
- Direction
- narrowed downe0
- Qualifier
- by the 4th day of seedling emergencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all these cases, the differences progressively narrowed down by the 4th day of seedling emergence”
t0“Cotton”
Claim · model-written summary
Cotton seedling counts were significantly correlated with cotton growth parameters and lint yield, especially in the drier year.
- Taxon
- CottonGossypium hirsutume0
- Organ / stage
- seedlinge0
- Outcome
- cotton growth parameters and lint yielde0
- Qualifier
- especially in the drier year (1998)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton seedling counts were significantly correlated to cotton growth parameters and lint yield, especially in the drier year (1998)”
Claim · model-written summary
The authors attributed emergence differences to conservation of soil moisture.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- seedling emergencee0
- Qualifier
- soil moisture conservatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results were attributed to soil moisture conservation during seedling emergence”
t0“Cotton”
Claim · model-written summary
Conservation tillage improved cotton germination, emergence, dry matter, and lint yield.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- conservation tillagee0
- Outcome
- cotton germination, emergence, dry matter, and lint yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conservation tillage improved cotton germination, emergence, dry matter, and lint yield”
Claim · model-written summary
The authors recommend no-till with winter rye and poultry litter for early cotton emergence and growth in the U.S. cotton belt.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- no‐till with winter rye cover cropping and poultry littere0
- Outcome
- early cotton seedling emergence and growthe0
- Setting
- U.S. cotton belte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no‐till with winter rye cover cropping and poultry litter can be used for achieving early cotton seedling emergence and growth in the U.S. cotton belt”
The same questions in other papers
tillage · quality: grain · Gossypium hirsutum (cotton)Positive and negative results
17 papers in the same direction as this paper · 7 in the opposite direction · 5 reporting no difference from an alternative
- negative
- positive
- positive
26 papers more in this group
See all 30 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.