Abstract
Abstract The phosphorus-use efficiency of crops in high pH soil is low. A randomized complete block design in a 3 × 2 split-plot experiment was conducted on a high pH silt loam (Typic Ustochrepts) to evaluate whether P-solubilizing microbial (PSM) inocula were able to improve the P fertilization effects on irrigated cotton (Gossypium hirsutum L., cultivar CIM-482). Cotton was planted after seed treatment with PSM inoculation at 0, 22 and 44 kg P ha−1. Results showed that soil microbial populations were significantly higher throughout the cotton-growing season in response to P fertilization and PSM inoculation. Both P fertilization and PSM inocula exerted a significant effect on cotton biomass and Puptake without an interaction. Economic analyses suggest that PSM inocula alone significantly increased P-use efficiency (8%), reduced cost and improved net income (by $36 ha−1) of irrigated cotton production. Moreover, the relationship between relative yield and P fertilization with PSM inocula showed that 95% of the maximum yield of cotton was produced at 22 kg P ha−1, whereas in the absence of PSM inocula, 95% relative yield was obtained at 36 kg P ha−1, asaving of ∼39% applied P with PSM inoculation. Keywords: PSM inoculahigh pH soilrelative yieldP-use efficiencyeconomics
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Claims 12
Claim · model-written summary
P fertilization and PSM inoculation significantly increased soil microbial populations through the cotton season.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- P fertilization and PSM inoculatione0
- Interactor
- PSMe0symbiont
- Outcome
- soil microbial populationse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil microbial populations were significantly higher throughout the cotton-growing season in response to P fertilization and PSM inoculation”
Claim · model-written summary
P fertilization significantly affected cotton biomass.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- P fertilizatione0
- Outcome
- cotton biomasse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both P fertilization and PSM inocula exerted a significant effect on cotton biomass and Puptake without an interaction”
Claim · model-written summary
PSM inocula significantly affected cotton biomass.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- PSM inoculae0
- Interactor
- PSMe0symbiont
- Outcome
- cotton biomasse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both P fertilization and PSM inocula exerted a significant effect on cotton biomass and Puptake without an interaction”
Claim · model-written summary
P fertilization significantly affected cotton P uptake.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- P fertilizatione0
- Outcome
- Puptakee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both P fertilization and PSM inocula exerted a significant effect on cotton biomass and Puptake without an interaction”
Claim · model-written summary
PSM inocula significantly affected cotton P uptake.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- PSM inoculae0
- Interactor
- PSMe0symbiont
- Outcome
- Puptakee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both P fertilization and PSM inocula exerted a significant effect on cotton biomass and Puptake without an interaction”
Claim · model-written summary
The two treatments showed no interaction for cotton biomass and P uptake.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- P fertilization and PSM inoculae0
- Outcome
- without an interactione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both P fertilization and PSM inocula exerted a significant effect on cotton biomass and Puptake without an interaction”
Claim · model-written summary
PSM inocula alone increased cotton P-use efficiency by 8%.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- PSM inoculae0
- Interactor
- PSMe0symbiont
- Outcome
- P-use efficiencye0
- Direction
- increasede0
- Value
- 8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PSM inocula alone significantly increased P-use efficiency (8%)”
t0“cotton”
Claim · model-written summary
PSM inocula reduced cotton production cost.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- PSM inoculae0
- Interactor
- PSMe0symbiont
- Outcome
- coste0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PSM inocula alone significantly increased P-use efficiency (8%), reduced cost and improved net income (by $36 ha−1) of irrigated cotton production”
Claim · model-written summary
PSM inocula improved net income from irrigated cotton by $36 ha−1.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- PSM inoculae0
- Interactor
- PSMe0symbiont
- Outcome
- net incomee0
- Direction
- improvede0
- Value
- $36 ha−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PSM inocula alone significantly increased P-use efficiency (8%), reduced cost and improved net income (by $36 ha−1) of irrigated cotton production”
Claim · model-written summary
With PSM inocula, 95% of maximum cotton yield occurred at 22 kg P ha−1.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- 22 kg P ha−1e0
- Outcome
- maximum yield of cottone0
- Value
- 95%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“95% of the maximum yield of cotton was produced at 22 kg P ha−1”
Claim · model-written summary
Without PSM inocula, 95% relative cotton yield required 36 kg P ha−1.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 36 kg P ha−1e0
- Outcome
- relative yielde0
- Value
- 95%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the absence of PSM inocula, 95% relative yield was obtained at 36 kg P ha−1”
t0“cotton”
Claim · model-written summary
PSM inoculation saved about 39% of applied P.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- PSM inoculatione0
- Interactor
- PSMe0symbiont
- Outcome
- applied Pe0
- Direction
- savinge0
- Value
- ∼39%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“asaving of ∼39% applied P with PSM inoculation”
t0“cotton”
The same questions in other papers
inoculation · yield · Gossypium hirsutum (cotton)Positive and negative results
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- negative
- negative
- no effect
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See all 50 papers →inoculation · nutrient: efficiency · Gossypium hirsutum (cotton)Results agree
2 papers in the same direction as this paper
- positive
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inoculation · soil: biology · Gossypium hirsutum (cotton)Results agree
2 papers in the same direction as this paper
- positive
- positive
fertilization · soil: biology · Gossypium hirsutum (cotton)Results agree
10 papers in the same direction as this paper
- positive
- positive
- positive
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See all 11 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.