Abstract
The soil acidity problem is intensified by improper utilization of synthetic fertilizers in addition to other naturally existing causes; thus, it is important to consider effects on soil health beyond seasonal crop productivity. Most widely used sources of soluble phosphate fertilizers cannot perform effectively on acidic soil due to its fixation. Field experiments were conducted on the acidic nitisols of Welmera District in two locations to determine the effects of using lime and different phosphorus fertilizer sources on the soil acidity attributes and nutrient use efficiency of barley crops. Treatments include a factorial combination of 4 different phosphate fertilizer sources (PARP, MOHP, NPSB, and NAFAKA) with 2 application rates (34.5 kg P2O5 ha−1 and 69 kg P2O5 ha−1) and 2 lime application rates computed from soil exchangeable acidity result 404.25 kg·ha−1 and 563.9 kg·ha−1 for on-station and on-farm sites, respectively, with no lime application (1/4th of LR and 0 lime). Partially acidulated rock phosphate as a phosphorus fertilizer significantly improves soil acidity attributes such as exchangeable acidity, present acid saturation, and plant available phosphorus, and also another soil nutrient status is significantly affected by using different phosphorus sources with the lime application. Application of PARP phosphate sources significantly improves soil exchangeable acidity and present acid saturation by 42% and 41%, respectively, over the commonly used NPSB standard sources of phosphorus fertilizer. Using lime with alternative phosphate sources also contributes to more effective nutrient use efficiency and barely yields improvements with a productive acid soil amendment option. Maintaining soil health by using those integrated approaches improves the efficient utilization of scarce unrenewable resources on sustainable bases.
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Claims 6
Claim · model-written summary
Partially acidulated rock phosphate significantly improves soil exchangeable acidity, present acid saturation and plant available phosphorus.
- Taxon
- barley
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Hordeum vulgaree0 - Treatment
- Partially acidulated rock phosphatee1
- Outcome
- exchangeable acidity, present acid saturation, and plant available phosphoruse1
- Direction
- improvese1
- Setting
- Welmera Districtt0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“nutrient use efficiency of barley crops”
e1“Partially acidulated rock phosphate as a phosphorus fertilizer significantly improves soil acidity attributes such as exchangeable acidity, present acid saturation, and plant available phosphorus”
t0“Welmera District”
Claim · model-written summary
PARP phosphate sources reduced soil exchangeable acidity by 42% relative to the NPSB standard source.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- PARP phosphate sourcese2
- Outcome
- soil exchangeable aciditye2
- Direction
- improvese2
- Value
- 42%e2
- Comparator
- NPSB standard sourcese2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nutrient use efficiency of barley crops”
e2“Application of PARP phosphate sources significantly improves soil exchangeable acidity and present acid saturation by 42% and 41%, respectively, over the commonly used NPSB standard sources of phosphorus fertilizer”
Claim · model-written summary
PARP phosphate sources reduced soil present acid saturation by 41% relative to the NPSB standard source.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- PARP phosphate sourcese2
- Outcome
- present acid saturatione2
- Direction
- improvese2
- Value
- 41%e2
- Comparator
- NPSB standard sourcese2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nutrient use efficiency of barley crops”
e2“Application of PARP phosphate sources significantly improves soil exchangeable acidity and present acid saturation by 42% and 41%, respectively, over the commonly used NPSB standard sources of phosphorus fertilizer”
Claim · model-written summary
Another soil nutrient status is significantly affected by the phosphorus sources applied with lime.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- different phosphorus sources with the lime applicatione3
- Outcome
- another soil nutrient statuse3
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nutrient use efficiency of barley crops”
e3“another soil nutrient status is significantly affected by using different phosphorus sources with the lime application”
Claim · model-written summary
Lime with alternative phosphate sources gives more effective nutrient use efficiency in barley.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- lime with alternative phosphate sourcese4
- Outcome
- nutrient use efficiencye4
- Direction
- more effectivee4
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nutrient use efficiency of barley crops”
e4“Using lime with alternative phosphate sources also contributes to more effective nutrient use efficiency and barely yields improvements”
Claim · model-written summary
Lime with alternative phosphate sources gives barley yield improvements.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- lime with alternative phosphate sourcese4
- Outcome
- barely yieldse4
- Direction
- improvementse4
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nutrient use efficiency of barley crops”
e4“Using lime with alternative phosphate sources also contributes to more effective nutrient use efficiency and barely yields improvements”
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