Abstract
Various rates and combinations of urea (46 -0 -0), ammonium phosphate (11 -48 -0) and potassium nitrate (13 -0 -46) were applied to short staple cotton as foliar sprays in Marana and Phoenix, Arizona. The test plots were in a randomized complete block design with five replications of each treatment. Plots were four rows by 30 feet with a five foot alley between plots. The center two rows were mechanically harvested for lint yield following termination. While the application of foliar fertilizers had no significant effect on seed cotton yields in Phoenix, AZ, yields were significantly increased in Marana, AZ (Table 1). The highest yields were associated with high levels of applied fertilizer, primarily in the form of nitrogen. The lower yielding plots received little or no applied fertilizer. These data are encouraging as to the potential of foliar applied fertilizers to increase yield of cotton.
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Claims 4
Claim · model-written summary
Foliar fertilizer had no significant effect on seed cotton yield in Phoenix.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- foliar fertilizerse0
- Outcome
- seed cotton yieldse0
- Direction
- no significant effecte0
- Setting
- Phoenix, AZe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of foliar fertilizers had no significant effect on seed cotton yields in Phoenix, AZ”
Claim · model-written summary
Foliar fertilizer significantly increased seed cotton yield in Marana.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- foliar fertilizerse1
- Outcome
- yieldse0
- Direction
- increasede0
- Setting
- Marana, AZe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yields were significantly increased in Marana, AZ”
e1“the application of foliar fertilizers had no significant effect on seed cotton yields in Phoenix, AZ”
Claim · model-written summary
Highest cotton yields were associated with high fertilizer application, mainly nitrogen.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- high levels of applied fertilizere0
- Outcome
- yieldse0
- Direction
- higheste0
- Qualifier
- primarily in the form of nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yields were associated with high levels of applied fertilizer, primarily in the form of nitrogen.”
e1“seed cotton yields in Phoenix, AZ”
Claim · model-written summary
Lower-yielding cotton plots received little or no fertilizer.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- little or no applied fertilizere0
- Outcome
- lower yieldinge0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower yielding plots received little or no applied fertilizer.”
e1“seed cotton yields in Phoenix, AZ”
The same questions in other papers
application · yield · Gossypium hirsutum (cotton)Positive and negative results
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- no effect
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See all 283 papers →fertilization · yield · Gossypium hirsutum (cotton)Positive and negative results
496 papers in the same direction as this paper · 47 in the opposite direction · 6 reporting no difference from an alternative
- no effect
- no effect
- negative
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See all 550 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.