Abstract
Three cotton cultivars (DPL 41, 90 and 775) were planted at 3 seeding rates (5, 10 and 20 lbs/A). These variables were evaluated under 5 fertilizer treatments which included increasing nitrogen levels and one treatment with nitrogen (N), phosphorus (P), potassium (K) and zinc (Zn). Residual soil N was high and variable and no clear response to applied N was found, although generally higher yields were found with the high N rate. The plots receiving P, K and Zn yielded less than plots receiving an equal amount of N. Increased seeding rates significantly increased yields which was probably an effect of early weed competition. Delta Pine 90 produced significantly more than 41 which was greater than 775. Petiole and soil nitrate values reflected the high and variable available soil N.
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Claims 6
Claim · model-written summary
No clear cotton yield response to applied nitrogen was found, although high nitrogen generally had higher yields.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- applied Ne0
- Outcome
- responsee0
- Direction
- no clear responsee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no clear response to applied N was found, although generally higher yields were found with the high N rate.”
t0“Cotton”
Claim · model-written summary
P, K and Zn plots yielded less than plots receiving an equal amount of N.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- P, K and Zne0
- Outcome
- yieldede0
- Direction
- lesse0
- Comparator
- an equal amount of Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plots receiving P, K and Zn yielded less than plots receiving an equal amount of N.”
t0“Cotton”
Claim · model-written summary
Higher seeding rates significantly increased cotton yields.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Increased seeding ratese0
- Outcome
- yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased seeding rates significantly increased yields”
t0“Cotton”
Claim · model-written summary
Delta Pine 90 yielded significantly more than 41.
- Taxon
- CottonGossypium hirsutumt0
- Material
- Delta Pine 90e0
- Outcome
- producede0
- Direction
- moree0
- Comparator
- 41e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delta Pine 90 produced significantly more than 41 which was greater than 775.”
t0“Cotton”
Claim · model-written summary
Cultivar 41 yielded more than 775.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delta Pine 90 produced significantly more than 41 which was greater than 775.”
t0“Cotton”
Claim · model-written summary
Petiole and soil nitrate values reflected high and variable available soil N.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- Petiole and soil nitrate valuese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Petiole and soil nitrate values reflected the high and variable available soil N.”
t0“Cotton”
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