— Globally, about 30% of the ice-free land, comprising large proportion of agricultural land, is affected by soil acidity which is potentially limiting agricultural productivity and causing environmental challenges. On the other hand, it is well documented that can curb the situation and boost agricultural production when …
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— Acidic or alkaline soils are caused by human factors such as the of the wrong type of fertilisers, and natural processes – some soils are naturally acidic and need to be amended. The data has ...
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— Soil acidity is a pressing issue in Ethiopia, more than 43% of Ethiopian farmland is affected by soil acidity problem where major staple food crops are grown, and it leads to significant crop yields reduction and in severe cases, may resulted in complete crop production loss and thereby contributed to food insecurity. The adoption of modern …
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— The acidic soils in Ethiopia are most commonly found in highland areas, including parts of the Rift Valley, the central and northern highlands, and some regions in the southwest.
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Soil acidity in Ethiopian highlands is mostly caused by the clearance of crop residues, continuous crop harvest without sufficient fertilization, cation removal, and usage of acid …
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Acid subsoils (pHH 2 O < 5.5), which are common in many agricultural systems, reduce productivity because crops and pastures fail to achieve water- and nutrient-limited potentials, particularly when topsoils dry out, such as during spring in Mediterranean environments or during summer in tropical environments. Depending on soil type and …
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— Yet, the amount of lime to mitigate soil acidity depends on the acid tolerance level of the crop [10, 17], level of soil pH, soil and the lime type, and the farming method . However, empirical evidence on soil acidity and attributing factors and also the lime needed to reclaim acidity for subsistence farming system is lacking.
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An earlier study estimated that about 41% of cultivated land in Ethiopia is affected by soil acidity where 28% of cultivated land is highly acidic. Even though this much were acidic, it its degree is varied from location to location in which highland was severely affected thereby limit crop productivity and livelihoods. ... can treat ...
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— Soil acidity is challenging agricultural production in Ethiopia. Above 43% of the farmland is under soil acidity problem and it leads to low crop yields and production losses.
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— Soils are the origin of many medicines that are used to treat many health problems. Medicines derived from soils include mostly antibiotics, prescription drugs, ... The soil acidity is increasing in scope and magnitude in Ethiopia. Thus, soil acidity is a critical agricultural problem in certain agro-climatic zones of Ethiopia. However, the ...
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Ethiopia, acid soils with a pH of below 5.5 in the surface layer constitute about 13.2% of the total land (Schlede 1989; Abebe 2007). In the country, acid soil-affected areas are found in the high rainfall parts, that is, west, northwest, southwest and south, which have
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worldwide. According to Abate E, et al. [3] Acid soils (pH <5.5 in surface layer) constitute 3,950 million ha or 30% of the world‟s total ice-free land or about 40% of the arable land [4]. In Africa 22% or 659 million ha of the total 3.01 billion ha land area has soil acidity problem [5]. In Ethiopia strong soil acidity
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These acidic soils, which cover an estimated 41% of the arable land in Ethiopia, are inherently infertile and exhibit aluminium (Al) or manganese (Mn) toxicity, which are generally considered to be the major limiting factor for plant growth in acidic soils. The major factors leading to acid soils in western Ethiopia include erosion of topsoil ...
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by soil acidity. From current ATA report it was estimated that about 43 % of the total arable land in Ethiopia is affected by soil acidity. Soil acidity problem is significant in the north-western, south-western, southern and central regions of the country which receive precipitation high enough to leach down
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— Thus, this review is aimed to critically evaluate the effect of on crop yield, analyze the significance of organic amendment as an alternative to to treat …
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— I and GTP II, only 2.4% of the severe acid soil area (3.7 million hectares) have been treated with lime. With this trend, it may take over 200 years to fully treat the strong acidic soil of Ethiopia. Overall, efforts to treat soil acidity so far have lagged expectations and now require effective interventions.
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In an attempt to treat acid soils, the government is producing agricultural limes by developing lime factories. ... Acid soils in Ethiopia occupy some 40.9% of the country of which 27.7% are moderate to weakly acidic (pH of 5.5–6.7); 13.2% are strong to moderately acidic (pH < 5.5) and nearly one-third have aluminum toxicity problem ...
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— The soil acidity level is a key soil characteristic that determines soil nutrient availability, soil microbial activities, and crop growth. This study was carried out to predict the extent and severity of soil acidity based on 109,704 soil pH samples collected from soil laboratories and compiled from various studies.
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— In Ethiopia, because of soil acidity and associated toxic nutrient availability the gap between probable and actual yield is very varied. The application of mineral fertilizers without adjustments ...
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— The soil analysis results revealed that soil pH increased from 5.1 (strongly acidic) to 5.8 (moderately acidic) while exchangeable acidity decreased from 2.44 to 0.31 cmol c kg-1 under combined ...
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— Soil pH. Soil pH is a measure of the acidity or alkalinity (basicity) of a soil, and is reported as a value between 0 and 14. ... Applying Lime to Acidic Soil. The amount of lime needed to treat the soil acidity depends on the following: Crop tolerance to acidity/alkalinity and the lime requirement of the selected plants;
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causes, extent, and impact of acid soil in Ethiopia, as well as its influence on crop production and management techniques, were used. 3. Causes of Soil Acidity
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— Ag-lime is widely considered as an effective remedy for amending soil acidity. This study assesses the current structure of ag-lime value chain and its functionality …
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— The predominant acidic soil associations in Ethiopia are Dystric Nitisols and Orthic Acrisols with inclusions of Leptosols (Abebe Citation 2007), unlike many African countries where Acrisols and Ferralsols dominate the acidic soils. Nitisols have very good potential for agriculture; they have a stable structure and a high-water storage capacity
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Symptoms of soil acidity in crops. Use of ammonium fertilizer. HYDROGEN ION TOXICITY: Transformation of some Nitrogen fertilizers into nitrate (NO. 3) releases Hydrogen ions …
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Together with other few studies (Agegnehu et al., 2019; 2021; Warner et al., 2023), the study contributes to the development of acid soil reclamation strategy in Ethiopia that envision to bring ...
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— A pH of 7.0 is defined as neutral. Values below 7.0 are acidic, and values above 7.0 are basic or alkaline. Small changes in numbers indicate large changes in soil acidity. A soil with a pH of 5 is 10 times …
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— It also provides important information on management options to amend soil acidity and improve the entire fertility of soils, and other organic amendments that can be applied to remedy soil ...
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1. What are the cause of soil acidity in Ethiopia? 2. What are the management options to increase agricultural productivity in Ethiopia?
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A participatory rural appraisal was conducted in order to understand perceived causes and indicators of soil acidity under multiple land-uses in three Districts of northwest Ethiopia.
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