Soil Science Research Papers/Topics

EVALUATION OF SELECTED SOIL PHYSICOCHEMICAL PROPERTIES ACROSS LAND USE TYPES AND SOIL DEPTH IN SUMBE SUB-WATERSHED OF WEST SHOWA ZONE, CENTRAL ETHIOPIA

Abstract: Soil quality is very much affected by land use and also soil depth. A study was conducted at Sumbe sub-watershed, located in the Toke Kutaye District of West Showa Zone of Oromia region, with the objective of evaluation of selected soil physicochemical properties under different land uses and soil depth. The results revealed the existence of spatial variation in soil properties among land use types and with soil depth in a given land use. Relatively higher silt content (47.50%) was...

ASSESSMENT OF SOIL EROSION RISK USING RUSLE MODEL IN ANALEMO WEREDA, SOUTHERN NATIONS, NATIONALITIES, AND PEOPLES’ REGION, ETHIOPIA

Abstract: Land degradation by soil erosion is a wide spread and serious phenomenon throughout the Ethiopian highlands causing significant loss of soil fertility, loss of productivity and environmental degradation. Thus, estimation of soil loss and identification of critical area for implementation of best management practice is central to success of a soil and water conservation program. This research has, therefore, been carried out to evaluate soil erosion risk in the study area so as to e...

SPATIAL VARIABILITY OF SOIL PROPERTIES, LIME REQUIREMENT DETERMINATION, AND RESPONSE OF BARLEY AND WHEAT TO APPLICATIONS OF LIME AND PHOSPHORUS FERTILIZER IN CENTRAL HIGHLANDS OF ETHIOPIA

Abstract: Knowledge of spatial variability of soil properties assists in decision making towards selection of appropriate management options pertinent to specific contexts. Liming acid soils is one of the available intervention options to amend soil acidity which can increase soil pH and alleviate Al toxicity to plants and thus maintain a suitable condition for growth of a variety of crops. Appropriate rate of lime and P fertilizer are therefore an important strategy on improving crop growth...

CHARACTERIZATION AND CLASSIFICATION OF SALT AFFECTED SOILS OF AMBO-COBA AREA UNDER GOLINA WATERSHED IN RAYA KOBO VALLEY, AMHARA REGION, ETHIOPIA

Abstract: It is known that all soils contain a certain amount of soluble salts and exchangeable sodium, magnesium, potassium, and calcium. However, when the concentration of either of them is excess, it will interfere with many soil processes including plant growth and the effects depend on the degree of concentration and type of plant. It is, therefore, with this understanding that a study was conducted with the objective to classify and characterize the salt affected soils of Ambo-coba in ...

EFFECT OF SLOPE GRADIENT AND MANAGEMENT PRACTICES IN SELECTED SOIL CHEMICAL AND PHYSICAL PROPERTIES OF DAWJA WATERSHED, EAST GOJJAM ZONE

Abstract: Information on the Effect of Slope Gradient and Management Practices in soil chemical and physical properties is key for predicting the relative response of soils to application of fertilizers and putting forward appropriate management practices. The present study was, thus, conducted to assess the selected chemical and physical properties of the soils as affected by slope gradient and management practices at the Dawja Watershed in Enebse Sar Midir District of East Gojjam Zone, Eth...

THE SOIL RESOURCES OF HINTALO WAJERAT DISTRICT, NORTHERN ETHIOPIA: SURVEY, QUALITY, EROSION RISK ASSESSMENT AND LAND SUITABILITY EVALUATION

Abstract: Soil survey and land evaluation are pertinent for effective utilization of natural resources and deliver site-specific soil management recommendations to the end-users. There is, however, limited information on the properties, constraints and potentials of soil resources in Hintalo Wajerat district of Northern Ethiopia. The purpose of this study was to (1) characterize, classify and map soils (2) generate soil quality index and analyze its spatial distribution (3) assess and map so...

EFFECTS OF LIME AND PHOSPHORUS LEVELS ON SELECTED SOIL CMEMICAL PROPERTIES AND BREAD WHEAT (Triticum aestivum L.) YIELD ON ACIDIC SOIL OF BANJA DISTRICT, NORTH WESTERN ETHIOPIA

Abstract: Soil acidity is one of the soil chemical degradation problems affecting soil productivity in the Ethiopian highlands. So, amendment of these soils is of paramount importance to enhance their productivity. This study was conducted during the 2017 cropping season to determine the effects of lime and phosphorus levels on selected soil properties and bread wheat yield on acidic soils of Pawe Agricultural Research Center Banja sub-station in Awi Zone of Amhara National Regional State. T...

Effect of Organic and Inorganic Fertilizers on Selected Soil Properties and Yield and Yield Components of Bread Wheat (Triticum aestivum L.) in Lume District, East Shoa, Ethiopia

Abstract: Soil fertility depletion is one of the major limiting factors for wheat yield reduction in the study area. As a result, inorganic fertilizers are commonly supplied to the crop. However, continuous and sole use of inorganic fertilizers may lead to deterioration in soil chemical and physical properties. Therefore, the study was conducted to investigate the integrated use of organic and inorganic fertilizers on selected soil properties and yield of wheat, which was conducted in Lume d...

PHOSPHOROUS FORMS, ADSORPTION DYNAMICS AND RELATED SOIL PROPERTIES AS INFLUENCED BY AMENDMENTS, AND ITS REQUIREMENTS BY BREAD WHEAT VARIETIES (Triticum aestivum L.), IN ACID SOILS OF CHEHA AN

Abstract: Low availability of P is among the major problems limiting crop production in the highlands of Ethiopia, including the study area, where soil acidity is a major problem. Information on chemical forms and rate of P adsorption, which can be used as a basis for P fertilizer recommendation, is not available in Cheha and Dinsho districts, souhthern highlands of Ethiopia. The current study was, therefore, conducted to evaluate the amount and distribution of P forms as influenced by lime,...

SOIL FERTILITY STATUS AND RESPONSE OF MAIZE (Zea mays L.) TO NPS AND DAP FERTILIZERS RATES IN BAKO TIBE DISTRICT, WESTERN ETHIOPIA

Abstract: Low soil fertility and lack of site specific fertilizer recommendation to replenish declining soil fertility have been the critical challenges to boost maize production in Ethiopia. This study was conducted during 2017 cropping season in Bako Tibe district of west Shewa Zone to assess soil fertility of study area. One hundred geo-referenced soil samples were collected from 1 km x 1 km sub grid generated within 10 km x 10 km main grid. Field experiment was also conducted in this gri...

EFFECT OF LIME AND VERMICOMPOST AMENDMENTS ON SELECTED SOIL PROPERTIES AND WHEAT (Triticum aestivum L.) PRODUCTIVITY ON NITISOLS OF NEGASA AREA, EAST WOLLEGA ZONE, ETHIOPIA

Abstract: Soil acidity is one of the major soil chemical constraints which limit crop productivity in the high rainfall regions of Ethiopia in general and in the study area in particular. In view of this, a field experiment was conducted at Negasa area in Guto Gida district on farmer’s field to study the effect of lime and vermicompost amendment on selected soil properties and yield and yield components of wheat (Triticum aestivum L.), grown during 2016 main cropping season. The factors st...

SOIL FERTILITY STATUSAND EFFECT OF NITROGEN RATES ON GRAIN QUALITY AND NITROGEN USE EFFICIENCY OF MALT BARLEY (Hordeum vulgare L.) VARIETIES AT WELMERA DISTRICT, CENTRAL HIGHLANDS OF ETHIOPIA

Abstract: Poor soil fertility is the major constraint affecting the productivity of malt barley in the highlands of Ethiopia. Malt barley responds well to growth limiting nutrients in the soil, especially nitrogen. A field experiment was conducted at Welmera District during 2017 cropping season to determine soil fertility status and the optimum nitrogen application rates for malt barley production without affecting grain quality. The treatments were a factorial combination of five N rates (0...

SOIL PHYSICO-CHEMICAL PROPERTIES UNDER CULTIVATED AND GRAZING LANDS AT FINCHA DEBSA WATERSHED, OROMIA REGION, WESTERN ETHIOPIA

Abstract: Land use types and the associated managements are the main causes for decline of soil fertility and agricultural productivity. A study was conducted to investigate the selected soil physico-chemical properties under cultivated and grazing lands at Fincha Debsa Watershed. Two land use types (cultivated and grazing) representative for the watershed were selected. Soil samples were collected from (0-20 and 20-40 cm) from three sites of each land use which were adjacent to each other a...

EFFECT OF INTEGRATED SOIL FERTILITY MANAGEMENT ON SELECTED SOIL PROPERTIES AND YIELD OF BREAD WHEAT (Triticum aestivum L.) IN SINANA DISTRICT, ETHIOPIA

Abstract: Bread wheat is an important food security and cash crop in Ethiopia, particularly in the Bale and Arsi highlands. However, the yield of the crop is constrained by poor soil fertility management practices. Therefore, a field experiment was conducted during the 2015 main cropping season at Selka Kebele of Sinana District in Bale zone of Oromia Regional State, southeastern Ethiopian with the objective of investigating the influence of biochar, farmyard manure, and mineral nitrogen fer...

ASSESSMENT OF HEAVY METALS CONCENTRATION IN TANNERY SOLID WASTE AND SOIL AT THE DUMPING SITE IN MOJO TOWN, CENTRAL ETHIOPIA

Abstract: Tannery industry considered to be one of the polluting industries in case of water, soil and air due to the deferent types of chemicals used in transforming hide to leather. The study was conducted in order to determine the concentration of heavy metal of Chromium, Iron, Zink, Nickel, Manganese, Lead, Copper and Cadmium and particle size distribution of tannery solid waste and tannery dumping site soil. The sample was selected purposively and analyzed for the presence of heavy meta...


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