Abstract
The objective of this work was to evaluate the effects of nitrogen (N), phosphorus (P), and potassium (K) levels on the yield and fiber quality of cotton cultivars with different maturation cycles and chemical fertility gradients. The experimental design was a randomized block design with five replicates. The treatments consisted of a combination of 13 cotton cultivars (FM 910, FM 993, IMA 12427, IMA 1595, IMA 1600, IMA 2059, IMA 278, IMA 2968, IMA 3869, IMA 474, IMA 6035, IMA 690, and IMA 8276) at three levels of fertilization (50%, 100%, and 150% of the recommended dose of each nutrient) with nitrogen, phosphorus, and potassium. Cultivars IMA 2059, IMA 2968, and IMA 8276 had little or no response to increase fertility levels. However, they all produced more than 1000 kg ha−1 of lint. Cultivars IMA 1600, IMA 3869, IMA 474, IMA 6035, and IMA 690 presented higher yields at the 150% level when compared to the 50% level, but these same yields were achieved with just the 100% recommended dose. IMA 6035 was the most productive. It had a lint yield of 1500 kg ha−1. In general, the use of 100% or 150% of the recommended nitrogen (N), phosphorus (P) and potassium (K) dose increased fiber quality, though this did not apply to micronaire values. These values decreased with increased fertility in 70% of the analyzed cultivars. We concluded that the level of soil fertility affects cotton yield and fiber quality responses. We found that demanding cultivars may increase yield. However, increasing the dose of nutrients can increase the cost of production in less demanding cultivars.
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Claims 16
Claim · model-written summary
IMA 2059 showed little or no response to greater fertility.
- Taxon
- cotton
Gossypium hirsutumt0 - Material
- IMA 2059e0
- Outcome
- little or no responsee0
- Direction
- little or no responsee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton cultivars”
e0“Cultivars IMA 2059, IMA 2968, and IMA 8276 had little or no response to increase fertility levels”
Claim · model-written summary
IMA 2968 showed little or no response to greater fertility.
- Taxon
- cottonGossypium hirsutumt0
- Material
- IMA 2968e0
- Outcome
- little or no responsee0
- Direction
- little or no responsee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton cultivars”
e0“Cultivars IMA 2059, IMA 2968, and IMA 8276 had little or no response to increase fertility levels”
Claim · model-written summary
IMA 8276 showed little or no response to greater fertility.
- Taxon
- cottonGossypium hirsutumt0
- Material
- IMA 8276e0
- Outcome
- little or no responsee0
- Direction
- little or no responsee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton cultivars”
e0“Cultivars IMA 2059, IMA 2968, and IMA 8276 had little or no response to increase fertility levels”
Claim · model-written summary
The three low-response cultivars each produced more than 1000 kg ha−1 lint.
- Taxon
- cottonGossypium hirsutumt0
- Material
- IMA 2059, IMA 2968, and IMA 8276e0
- Outcome
- linte0
- Direction
- more thane0
- Value
- more than 1000 kg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivars IMA 2059, IMA 2968, and IMA 8276 had little or no response to increase fertility levels. However, they all produced more than 1000 kg ha−1 of lint”
t0“cotton cultivars”
Claim · model-written summary
IMA 1600 yield was higher at 150% than at 50% fertility.
- Taxon
- cottonGossypium hirsutumt0
- Material
- IMA 1600e0
- Treatment
- 150% levele0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- 50% levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton cultivars”
e0“Cultivars IMA 1600, IMA 3869, IMA 474, IMA 6035, and IMA 690 presented higher yields at the 150% level when compared to the 50% level”
Claim · model-written summary
IMA 3869 yield was higher at 150% than at 50% fertility.
- Taxon
- cottonGossypium hirsutumt0
- Material
- IMA 3869e0
- Treatment
- 150% levele0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- 50% levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton cultivars”
e0“Cultivars IMA 1600, IMA 3869, IMA 474, IMA 6035, and IMA 690 presented higher yields at the 150% level when compared to the 50% level”
Claim · model-written summary
IMA 474 yield was higher at 150% than at 50% fertility.
- Taxon
- cottonGossypium hirsutumt0
- Material
- IMA 474e0
- Treatment
- 150% levele0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- 50% levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton cultivars”
e0“Cultivars IMA 1600, IMA 3869, IMA 474, IMA 6035, and IMA 690 presented higher yields at the 150% level when compared to the 50% level”
Claim · model-written summary
IMA 6035 yield was higher at 150% than at 50% fertility.
- Taxon
- cottonGossypium hirsutumt0
- Material
- IMA 6035e0
- Treatment
- 150% levele0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- 50% levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton cultivars”
e0“Cultivars IMA 1600, IMA 3869, IMA 474, IMA 6035, and IMA 690 presented higher yields at the 150% level when compared to the 50% level”
Claim · model-written summary
IMA 690 yield was higher at 150% than at 50% fertility.
- Taxon
- cottonGossypium hirsutumt0
- Material
- IMA 690e0
- Treatment
- 150% levele0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- 50% levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton cultivars”
e0“Cultivars IMA 1600, IMA 3869, IMA 474, IMA 6035, and IMA 690 presented higher yields at the 150% level when compared to the 50% level”
Claim · model-written summary
The five responsive cultivars achieved the same yields with 100% fertility as with 150%.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 100% recommended dosee0
- Outcome
- same yieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these same yields were achieved with just the 100% recommended dose”
t0“cotton cultivars”
Claim · model-written summary
IMA 6035 had a lint yield of 1500 kg ha−1.
- Taxon
- cottonGossypium hirsutumt0
- Material
- IMA 6035e0
- Outcome
- lint yielde0
- Direction
- most productivee0
- Value
- 1500 kg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IMA 6035 was the most productive. It had a lint yield of 1500 kg ha−1”
t0“cotton cultivars”
Claim · model-written summary
Recommended or higher nutrient rates generally increased fiber quality.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 100% or 150% of the recommended nitrogen (N), phosphorus (P) and potassium (K) dosee0
- Outcome
- fiber qualitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton cultivars”
e0“the use of 100% or 150% of the recommended nitrogen (N), phosphorus (P) and potassium (K) dose increased fiber quality”
Claim · model-written summary
Micronaire values decreased with higher fertility in 70% of cultivars.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- increased fertilitye0
- Outcome
- micronaire valuese0
- Direction
- decreasede0
- Value
- 70%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton cultivars”
e0“micronaire values. These values decreased with increased fertility in 70% of the analyzed cultivars”
Claim · model-written summary
The authors concluded that soil fertility affects cotton yield and fiber quality responses.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- cotton yield and fiber quality responsese0
- Setting
- soil fertilitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the level of soil fertility affects cotton yield and fiber quality responses”
t0“cotton cultivars”
Claim · model-written summary
The authors inferred demanding cultivars may increase yield.
- Taxon
- cottonGossypium hirsutumt0
- Material
- demanding cultivarse0
- Outcome
- yielde0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“demanding cultivars may increase yield”
t0“cotton cultivars”
Claim · model-written summary
The authors inferred higher nutrient doses can raise production cost in less demanding cultivars.
- Taxon
- cottonGossypium hirsutumt0
- Material
- less demanding cultivarse0
- Treatment
- increasing the dose of nutrientse0
- Outcome
- cost of productione0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing the dose of nutrients can increase the cost of production in less demanding cultivars”
t0“cotton cultivars”
The same questions in other papers
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- no effect
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See all 57 papers →nitrogen · quality: grain · Gossypium hirsutum (cotton)Results differ
64 papers in the same direction as this paper · 32 in the opposite direction · 6 reporting no difference from an alternative
- positive
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See all 103 papers →phosphorus · quality: grain · Gossypium hirsutum (cotton)Positive and negative results
15 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- negative
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See all 24 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.