Socio-economic Factors Affecting Soil Fertility Management Practices in Gindeberet Area, Western Ethiopia

Takele, Lechisa; Chimdi, Achalu; Abebaw, Alemayehu

doi:10.4314/star.v4i1.25

Cited by 5 publications

(3 citation statements)

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“…The rate of reporting of erosion signs varied greatly across watersheds. Similarly variable results regarding erosion signs (e.g., rills) have been reported in other studies (Okoba & de Graaff,2005;Takele, Chimdi, & Abebaw, 2015). Rates of reporting (Table 2) were always lowest in the Walungu territory.…”

Section: Effect Of Farming Practices On Erosionsupporting

confidence: 82%

Erosion and soil and water conservation in South‐Kivu (eastern DR Congo): The farmers' view

Heri‐Kazi

Bielders

2020

Land Degrad Dev

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Despite being one of the hotspots for soil erosion in the world, little is known regarding farmer's knowledge of soil erosion in the highlands of South‐Kivu in the Democratic Republic of Congo. A proper understanding of farmers' knowledge regarding soil erosion and conservation measures is a prerequisite for implementing resilient erosion control measures. The objective of this study was therefore to assess farmers' knowledge of soil erosion, to document existing soil and water conservation (SWC) measures and to identify their adoption constraints in the highlands of South‐Kivu. Data were collected using interviews with a semi‐structured questionnaire involving 720 respondents from eight watersheds in four territories. Farmers reported eight main erosion indicators. As opposed to gullies (80% of farmers), rills were perceived as important erosion indicators by only 50% of farmers, despite their common occurrence. Farmers were largely unaware of the potential impact of their crops and cropping practices on erosion. Farmers knew about only a limited range of SWC measures, which were perceived to be little to moderately efficient. Furthermore, the average level of adoption was very low (21%). Adoption constraints varied widely depending on the SWC measure. Thus, future interventions need to place much greater emphasis on awareness regarding soil erosion and SWC measures, to strengthen farmers' capacity for experimentation and adaptation to new technologies and finally to create a policy and institutional environment that stimulates widespread adoption of SWC techniques.

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Section: Effect Of Farming Practices On Erosionsupporting

confidence: 82%

Erosion and soil and water conservation in South‐Kivu (eastern DR Congo): The farmers' view

Heri‐Kazi

Bielders

2020

Land Degrad Dev

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“…9 ) demonstrated that bacterial communities were clearly separated in top and deep soils, which can be explained by the fact that nutrient composition determines the distribution of oligotrophic and hypertrophic bacteria ( Fierer, Bradford & Jackson, 2007 ; Whitman et al, 2016 ), consistent with hypothesis (3). Compared to top soils, deep soils had the highest relative abundance of Proteobacteria under both defoliation and nitrogen addition, which can be attributed to the highest PI in deep soils that is related to different microbial products ( Kögel-Knabner, 2017 ), soil pH ( Madsen & Munk, 1987 ; Silveira et al, 2008 ; Takele, Chimdi & Abebaw, 2014 ), and soil nutrient ( Madsen & Munk, 1987 ). Therefore, soil microbial communities may be partially determined by soil properties.…”

Section: Discussionmentioning

confidence: 99%

Effects of defoliation and nitrogen on carbon dioxide (CO₂) emissions and microbial communities in soils of cherry tree orchards

Wang,

Xue

et al. 2023

PeerJ

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Background In farmland, microbes in soils are affected by exogenous carbon, nitrogen, and soil depth and are responsible for soil organic carbon (SOC) mineralization. The cherry industry has been evolving rapidly in northwest China and emerged as a new source of income for local farmers to overcome poverty. Accordingly, it is highly imperative to probe the effect of defoliation and nitrogen addition on carbon dioxide (CO2) emissions and microbial communities in soils of dryland cherry orchards. Methods CO2 emissions and microbial communities were determined in soil samples at three depths, including 0–10 cm, 10–30 cm, and 30–60 cm, from a 15-year-old rain-fed cherry orchard. The samples were respectively incubated with or without 1% defoliation under three input levels of nitrogen (0 mg kg−1, 90 mg kg−1, and 135 mg kg−1) at 25°C in the dark for 80 days. Results Defoliation and nitrogen addition affected CO2 emissions and microbial communities and increased microbial biomass carbon (MBC), the activity of soil catalase, alkaline phosphatase, and cellulase in soils of the dryland cherry orchard. The culture with defoliation significantly promoted CO2 emissions in soils at the three depths mainly by increasing the MBC, catalase, alkaline phosphatase, and cellulase activities, resulted in positive priming index. Nitrogen addition elevated the MBC and changed soil enzymes and reduced CO2 emissions in soils at the three depths. Moreover, the priming index was higher in deep soils than in top and middle soils under the condition of defoliation and nitrogen addition. No significant differences were observed in the soil bacterial diversity (Chao1, Shannon, and Simpson) among all treatments. Meanwhile, the relative abundance of Proteobacteria was markedly increased and that of Acidobacteria was substantially diminished in soils at the three depths by defoliation and nitrogen addition. The results sustained that defoliation and nitrogen can regulate SOC dynamics by directly and indirectly affecting soil microbial activities and communities. As a result, the combination of defoliation return and nitrogen fertilization management is a promising strategy to increase SOC and promote soil quality in dryland cherry orchards.

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“…As a result of high erosion rates, the removal of biomass and animal manure from farmland, and the limited application of inorganic and organic fertilizers nutrient diminution rates are aggravated in the country like many East African countries [1]. In addition, abandoning the traditional practices with natural fallow or uncultivated systems to repair soil fertility and inadequate supply of nutrients are the key constraints and challenges to crop production faced by smallholder growers in Ethiopia [2]. Tis shows that interventions targeting soil fertility evaluation must be designed to improve the success of crop productivity.…”

Section: Introductionmentioning

confidence: 99%

Identification of Yield-Limiting Nutrients for Sorghum (Sorghum bicolor (L.) Moench) Yield, Nutrient Uptake and Use Efficiency on Vertisols of Raya Kobo District, Northeastern Ethiopia

Teshome¹,

Molla

Feyisa

2023

International Journal of Agronomy

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Agricultural productivity was negatively impacted by low soil fertility and uneven fertilizer application during crop cultivation in Ethiopia. Because of this, important crops frequently respond to fertilizer applications significantly below their achievable and potential yields. This study was carried out to determine the most sorghum yield-limiting nutrients in the Raya Kobo area of the Amhara Region in the 2020/21 crop season. Sorghum variety Girana-One was used as the test crop. Control, NPS, PSBZn, NPBZn, NSBZn, NPSB, NPSZn, NPSBZn, recommended NP, and NPSKBZn were treatments. Three replications of the experiment were used in a randomized complete block design. Before treatment application, a composite soil sample was collected at a depth of 0–20 cm to determine the soil’s physicochemical properties. To evaluate N and P uptakes, samples of sorghum stalk and grain were collected. SAS software was used to analyze the data. Results showed that, NPKSZnB produced a considerably greater grain yield (4620 kg·ha−1), whereas the control and N omitted plots produced the lowest grain yields (2759 kg·ha−1) and 2805 kg·ha−1, respectively. Nitrogen fertilizer missing plots showed a statistically significant yield drop compared to the other plots, and there was no statistically significant yield difference between the prescribed NP plots and the potassium, sulfur, boron, or zinc omitted plots. The plots treated with NPKSZnB had the highest agronomic efficiency for N (19.7 kg grain kg−1·N) and P (10.6 kg grain kg−1 P2O5). Therefore, research and development should therefore concentrate on nitrogen to achieve the best sorghum yield for the study location. Phosphorus might also be used to keep the fertility level within the ideal range.

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Socio-economic Factors Affecting Soil Fertility Management Practices in Gindeberet Area, Western Ethiopia

Cited by 5 publications

References 1 publication

Erosion and soil and water conservation in South‐Kivu (eastern DR Congo): The farmers' view

Erosion and soil and water conservation in South‐Kivu (eastern DR Congo): The farmers' view

Effects of defoliation and nitrogen on carbon dioxide (CO₂) emissions and microbial communities in soils of cherry tree orchards

Identification of Yield-Limiting Nutrients for Sorghum (Sorghum bicolor (L.) Moench) Yield, Nutrient Uptake and Use Efficiency on Vertisols of Raya Kobo District, Northeastern Ethiopia

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Socio-economic Factors Affecting Soil Fertility Management Practices in Gindeberet Area, Western Ethiopia

Cited by 5 publications

References 1 publication

Erosion and soil and water conservation in South‐Kivu (eastern DR Congo): The farmers' view

Erosion and soil and water conservation in South‐Kivu (eastern DR Congo): The farmers' view

Effects of defoliation and nitrogen on carbon dioxide (CO2) emissions and microbial communities in soils of cherry tree orchards

Identification of Yield-Limiting Nutrients for Sorghum (Sorghum bicolor (L.) Moench) Yield, Nutrient Uptake and Use Efficiency on Vertisols of Raya Kobo District, Northeastern Ethiopia

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Effects of defoliation and nitrogen on carbon dioxide (CO₂) emissions and microbial communities in soils of cherry tree orchards