Abstract
The adoption of integrated soil fertility management (ISFM) practices can improve soil quality and sustainably increase crop yield while slowing down the rate of ongoing degradation. This research assessed the effects of selected ISFM practices on soil properties at the Dire and Legedadi watersheds, central highlands of Ethiopia, in the 2021 and 2022 cropping seasons. Eight treatments were selected (sole wheat, sole faba bean, 100% recommended NPS + urea fertilizers, 100% recommended vermicompost (VC), wheat with half dose both NPS + urea and VC, wheat and faba bean intercropping with half dose both NPS + urea and VC, wheat and faba bean intercropping with half‐dose NPS + urea fertilizers, and wheat and faba bean intercropping with 50% VC). The treatments were studied on farmers’ fields using a randomized complete block design with three replications. Analysis of variance showed that soil samples collected from each plot indicated significant differences in soil organic carbon (SOC), total nitrogen (TN), available phosphorus (Pav), exchangeable bases (Ca 2+ , Na + , and Kexc), and cation exchange capacity (CEC). Soil pH and moisture showed improvement in combined fertilizers application compared to the preplanting soil sample. A combined application of VC and NPS + urea fertilizers significantly ( p < 0.05) increased SOC, Pav, K + , Na + , and CEC compared to the control. A combined application of VC and NPS + urea fertilizers improved the soil quality. The highest TN contents of 0.36% at the Dire site and 0.30% at the Legedadi site were obtained with the full dose VC treatment. Additionally, this treatment resulted in the greatest water‐holding capacity and soil carbon stock at both sites. Similarly, the wheat‐faba bean intercropped plots showed a significant ( p < 0.05) effect on the soil carbon stock and sequestration over the control in both study sites. Based on the results of the current study, it can be concluded that the combined application of a half dose of each VC and NPS + urea fertilizers improved most soil physicochemical properties at both sites. This suggests that using a combination of VC and NPS + urea fertilizers can help farmers reduce their inorganic fertilizer needs by 50%.
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Claims 9
Claim · model-written summary
Treatments produced significant differences in SOC, TN, Pav, exchangeable bases and CEC.
- Taxon
- Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)
Vicia faba
Triticum aestivumt0 - Outcome
- soil organic carbon (SOC), total nitrogen (TN), available phosphorus (Pav)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant differences in soil organic carbon (SOC), total nitrogen (TN), available phosphorus (Pav), exchangeable bases (Ca 2+ , Na + , and Kexc), and cation exchange capacity (CEC)”
t0“Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)”
Claim · model-written summary
Combined fertilizer application improved soil pH and moisture relative to preplanting soil.
- Taxon
- Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)Vicia fabaTriticum aestivumt0
- Treatment
- combined fertilizers applicatione0
- Outcome
- Soil pH and moisturee0
- Direction
- improvemente0
- Comparator
- preplanting soil samplee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil pH and moisture showed improvement in combined fertilizers application compared to the preplanting soil sample.”
t0“Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)”
Claim · model-written summary
Combined VC and NPS plus urea increased SOC, Pav, K +, Na + and CEC relative to control.
- Taxon
- Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)Vicia fabaTriticum aestivumt0
- Treatment
- combined application of VC and NPS + urea fertilizerse0
- Outcome
- SOC, Pav, K + , Na + , and CECe0
- Direction
- increasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A combined application of VC and NPS + urea fertilizers significantly ( p < 0.05) increased SOC, Pav, K + , Na + , and CEC compared to the control.”
t0“Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)”
Claim · model-written summary
Full-dose VC yielded the highest total nitrogen at Dire, 0.36%.
- Taxon
- Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)Vicia fabaTriticum aestivumt0
- Treatment
- full dose VC treatmente0
- Outcome
- TN contentse0
- Direction
- higheste0
- Value
- 0.36%e0
- Setting
- Dire sitee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest TN contents of 0.36% at the Dire site and 0.30% at the Legedadi site were obtained with the full dose VC treatment.”
t0“Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)”
Claim · model-written summary
Full-dose VC yielded the highest total nitrogen at Legedadi, 0.30%.
- Taxon
- Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)Vicia fabaTriticum aestivumt0
- Treatment
- full dose VC treatmente0
- Outcome
- TN contentse0
- Direction
- higheste0
- Value
- 0.30%e0
- Setting
- Legedadi sitee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest TN contents of 0.36% at the Dire site and 0.30% at the Legedadi site were obtained with the full dose VC treatment.”
t0“Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)”
Claim · model-written summary
Full-dose VC gave the greatest water-holding capacity and soil carbon stock at both sites.
- Taxon
- Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)Vicia fabaTriticum aestivumt0
- Treatment
- full dose VC treatmente1
- Outcome
- water‐holding capacity and soil carbon stocke0
- Direction
- greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this treatment resulted in the greatest water‐holding capacity and soil carbon stock at both sites.”
e1“full dose VC treatment”
t0“Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)”
Claim · model-written summary
Wheat–faba bean intercropping significantly affected soil carbon stock and sequestration relative to control at both sites.
- Taxon
- Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)Vicia fabaTriticum aestivumt0
- Treatment
- wheat‐faba bean intercropped plotse0
- Outcome
- soil carbon stock and sequestratione0
- Comparator
- controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat‐faba bean intercropped plots showed a significant ( p < 0.05) effect on the soil carbon stock and sequestration over the control in both study sites.”
t0“Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)”
Claim · model-written summary
Half doses of both VC and NPS plus urea improved most soil physicochemical properties at both sites.
- Taxon
- Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)Vicia fabaTriticum aestivumt0
- Treatment
- combined application of a half dose of each VC and NPS + urea fertilizerse0
- Outcome
- soil physicochemical propertiese0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combined application of a half dose of each VC and NPS + urea fertilizers improved most soil physicochemical properties at both sites.”
t0“Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)”
Claim · model-written summary
The authors suggest combined VC and NPS plus urea could reduce inorganic fertilizer requirements by 50%.
- Taxon
- Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)Vicia fabaTriticum aestivumt0
- Outcome
- reduce their inorganic fertilizer needse0
- Value
- 50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using a combination of VC and NPS + urea fertilizers can help farmers reduce their inorganic fertilizer needs by 50%”
t0“Wheat (Triticum aestivum L.) and Faba Bean (Vicia faba L.)”
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