Journal of
Soil Science and Environmental Management

  • Abbreviation: J. Soil Sci. Environ. Manage.
  • Language: English
  • ISSN: 2141-2391
  • DOI: 10.5897/JSSEM
  • Start Year: 2010
  • Published Articles: 274

JSSEM Articles

March 2017

Description, characterization and classification of the major soils in Jinka Agricultural Research Center, South Western Ethiopia

The soils of Jinka in Southern Ethiopia were studied based on the detail works on soil pit description, characterizing and classification following the FAO and USDA guidelines. For this, along with the topo-sequence and landscape, six soil profiles were opened on an area of 100 ha of research field to make them suit for sustainable soil management practices. The soils were generally described as dark reddish brown to...

Author(s): Mesfin Kebede, Tesfaye Shimbir, Girma Kasa, Dejene Abera and Tsegaye Girma

March 2017

Effect of applying different ratios of compost made of municipal solid waste on the growth of Zea mays L. (Corn)

Since composts are soil like amendments made from plant and animal remains, they are more important than inorganic fertilizer because they consist of relatively stable decomposed materials resulting from accelerated biological degradation of organic matter. However, little attention has been paid on the use of compost as bio-fertilizers to improve soil structure,  fertility  and  consequently ...

Author(s): Weerasinghe T. K. and De Silva I. H. W. K.

March 2017

Evaluation of the effectiveness of soil and water conservation practices on improving selected soil properties in Wonago district, Southern Ethiopia

Accelerated soil erosion remains the major challenge that is adversely affecting the agricultural performance in Ethiopia. Efforts towards soil and water conservation (SWC) goal were started since the mid-1970s and 80s to alleviate soil erosion and low crop productivity. However, the effectiveness of SWC practices on improving soil properties remains less studied. Soil physical analysis (%sand, silt and clay) and...

Author(s): Yonas Ademe, Temesgen Kebede, Alemayehu Mullatu and Toyiba Shafi

February 2017

Community’s perception on soil erosion and their participation in soil conservation practices: A case study of Alaltu watershed of Najo District, Ethiopia

Community’s perception of land degradation by erosion is a key social factor that is important in deciding options for controlling soil losses. Therefore, understanding Community’s knowledge and their perception and factors that influence their land management practices are of paramount importance for promoting sustainable land use in the study area. Community of the study area have good perception of soil...

Author(s): Gemechu Yigezu Ofgeha

February 2017

Spatial distribution of organic carbon and nitrogen in soils related to flood recurrence intervals and land use changes in Southern Québec, Canada

Several hydromorphological and soil factors may be the cause of variations in the total organic carbon (TOC%) and total nitrogen (TN%) content of riparian soils. Despite the importance of these two essential components in soil-forming processes, few studies have focused on the variability of carbon and nitrogen content for soils subjected to frequent flooding. Successive floods may in fact result in soil depletion....

Author(s): Roxane Paradis and Diane Saint-Laurent ,

February 2017

Soil organic carbon and total nitrogen stock response to traditional enclosure management in eastern Ethiopia

Traditional area enclosures are widely used by pastoralists in East Africa. However, the response of basic soil properties to the establishment of traditional enclosure management remains poorly understood. The aim of this study was to investigate the impacts of area enclosure on soil organic carbon and total nitrogen stock in the Bordade rangelands, eastern Ethiopia. The soil samples were collected from twelve area...

Author(s): Mohammed Mussa, Abule Ebro and Lissahanwork Nigatu

January 2017

Effect of compost and earthworm production on soil properties, growth and dry matter yield of maize in crude oil degraded soil

The effect of compost and earthworm production on soil properties, growth and dry-matter yield of maize in crude oil degraded soil was studied. The treatment consisted of 250 g crude oil degraded soil (DS) and 50 g each of four different compost materials mixed differently with 250 g of degraded soil, and the compost were cassava peels (CP), cassava peels + poultry manure (PC), cassava peels + pig manure (GC) and...

Author(s): Nweke I. A.

January 2017

Influence of wood charcoal from Chlorophera excelsa on soil properties and yield components of maize

Wood charcoals were mainly used for smoking of fish, meat and frying of corns and many times dump off as wastes in southeast, Nigeria. Their nutrient recycles and release when used as soil amendment has not been considered and evaluated by farmers in the southeast, Nigeria. This study was therefore carried out to assess the efficiency of wood charcoal technology in improving soil productivity. Influence of wood charcoal...

Author(s): Nweke, I. A.

December 2016

Values of organic materials as fertilizers to northern Nigerian crop production systems

Organic materials, the combined products of different animal and plant sources, play vital roles in agricultural crop production systems. They are more environmental friendly than inorganic fertilizers and added many values to soil and crop production, economically. They sustain and restore soil inherent properties, enhance soil biological activities and potentially increase crop yields, which are safe for human...

Author(s): S. Usman and A. M. Kundiri

December 2016

Impact of deforestation and subsequent cultivation on soil fertility in Komto, Western Ethiopia

The study examined the impact of deforestation and subsequent cultivation on soil fertility and acidity conditions under varying soil depths. Soil profiles were opened in two adjacent land units, namely forestland and arable land and samples were collected from genetic horizons. Deterioration of soil fertility was observed after deforestation and traditional cultivation. The main aim of deforestation was agricultural...

Author(s): Birhanu Iticha, Muktar Mohammed and Kibebew Kibret

December 2016

Influence of different leguminous crop on the ultisol that had been continuously cropped to cassava /maize for over six years

Leguminous crops play an important role in developing sustainable and low input crop production system and have shown good potential for inclusion in alley cropping systems. Hence, a study was carried out at the Teaching and Research Farm of the Faculty of Agriculture, Chukwuemeka Odumegwu Ojukwu University to evaluate the productivity of an impaired ultisol under cassava/maize for over six years planted with different...

Author(s): Nweke I. A.

December 2016

Assessment of sedimentation in Tuli – Makwe Dam using remotely sensed data

A remote sensing approach was used to assess sedimentation in Tuli-Makwe Dam in the semi-arid Mzingwane Catchment in the Matebeleland South province of Zimbabwe. The loss in reservoir gross capacity due to sediment deposition for a period of 47 years since the construction of the dam in 1966 to 2013 was determined to be 3.371 Mm3 which translate to 40.84 % gross capacity loss. The revised capacity of the dam is...

Author(s): Elvis Tawanda Mupfiga, Richard Munkwakwata, Bester Mudereri and Upenyu Naume Nyatondo

November 2016

Nitrogen Dynamics of Vermicompost Use in Sustainable Agriculture

Vermicomposting is a process where worms are used to transform organic waste products into fertilizers for agricultural use and as soil amendments to improve soil health. Vermicompost is used in agriculture as both an organic fertilizer and a soil amendment due to its large biological component and abundant nutrient concentrations, in particular nitrogen (N). Vermicomposts promote soil microbial biodiversity by...

Author(s): Adrian P. Broz, Priya O. Verma and Chip Appel

November 2016

Attributes of Neosols associated with agricultural uses in the Semi-arid Region of Rio Grande do Norte, Brazil

The integrated study of soil properties allows the establishment of appropriate management practices in the Brazilian Semi-arid region. This study aimed at evaluating the physical and chemical attributes in Neosols under different agricultural uses in different landscape positions. The evaluations were carried out in five areas in the city of Martins, RN: Consortium of corn/bean/cassava (CON), monoculture of corn (MM)...

Author(s): Jussiara Sonally Jácome Cavalcante, Jeane Cruz Portela, Stefeson Bezerra de Melo, Mikhael Rangel de Souza Melo, Christiano Reboucas Cosme, Joseane Dunga da Costa, Gabriela Cemirames de Sousa Gurgel

November 2016

Characterization of problem soils in and around the south central Ethiopian Rift Valley

Some soils in Ethiopia reduce plant productivity due to physical and/or chemical limitations. The morphological, physical and chemical properties of problem soils, including sodic, acidic, and saline soils, around southern Ethiopia were characterized and are described in this chapter. The intention is to characterize the soils and better understand the specific nature of the limitations. Sodic soils of Alage, acid soils...

Author(s): Kiflu Alemayehu, Beyene Sheleme and Jeff Schoenau

October 2016

The effect of land management practices on soil physical and chemical properties in Gojeb Sub-river Basin of Dedo District, Southwest Ethiopia

This study was undertaken to evaluate the effect of cultivation, fallow and woody land with and without soil bund on soil physical and chemical properties in Gojeb river basin of Dedo district. Landscape of the basin was divided in to three slope positions as upper (25 to 35%), middle (15 to 25%) and lower (5 to 15%). From each slope position, purposely three land use types (cultivated, fallow and woody) lands conserved...

Author(s): Bahilu Bezabih, Abebayehu Aticho, Tadesse Mossisa and  Bayu Dume

October 2016

Soil thermal parameters assessment by direct method and mathematical models

Soil thermal parameters are mainly inputs for models of soil heat flux. Mathematical models are important tool for predicting the soil heat and water transfer, depending on some fundamentals of soil physical properties. Soil moisture is one of the soil physical properties that have a great effect on thermal parameters. The aim of the work is to describe the behavior of soil thermal parameters under different values of...

Author(s): Evgeny V. Shein and Ahmed Y. Mady,

September 2016

Variability of soil organic carbon with landforms and land use in the Usambara Mountains of Tanzania

This study was carried out to assist in the formulation of conservation technologies for landscape sustained productivity in the Usambara Mountains, Tanzania. Conventional soil survey methods were used to develop a base map on which 55 soil profile pits were randomly located on representative landforms and land use mapping units. Soil samples were collected from topsoils for soil carbon analysis using the wet digestion...

Author(s): Joel Loitu Meliyo, Balthazar, M. Msanya, Didas Nahum Kimaro, Boniface Hussein John Massawe, Proches, Hieronimo LothS. Mulungu, Jozef Deckers and Hubert Gulinck

September 2016

Sulphate sorption and desorption characteristics of selected Malawi soils

The soils selected for this study represented major soil types in Malawi. They exhibited a wide range of physical and chemical properties. Their pH values ranged from 4.7 to 6.7 and their contents of clay fraction (<0.002 mm) ranged from 170 to 500 g kg-1, organic matter from 6.7 to 39.3 g kg-1, free Fe2O3 from 18.9 to 44.7 g kg-1, and free Al2O3 from 17.8 to 45.6 g kg-1. The soils varied widely in their SO4 sorption...

Author(s): J. H. A. Maida and P. C. Nalivata  

September 2016

Farmers perception on soil fertility status of small- scale farming system in southwestern Ethiopia

Soil is one of the most essential natural resources. That is why soil fertility management is a major global concern. The current study in Delta sub-watershed was conducted to assess farmer’s perception on soil fertility status of small holder farming system under different land uses, Enset (Ensete ventricosum) farm, grazing and agricultural land. Both secondary and primary data were collected through direct field...

Author(s): Bahilu Bezabih, Mulugeta Iemenih and Alemayehu Regassa

August 2016

Ammonia volatilization in corn crop as a result of the application of different nitrogenous fertilizers

The experiment was carried out in a greenhouse with samples of Eutroferric Red Latosol. On each of these samples, an amount of 800 mg/kg of N was superficially added in the soil. The experiment consisted of five industrial sources of nitrogen, urea (45% of N), urea plus (45% of N), ammonium sulfate (20% of N and 24% of S), Yarabela® (27% of N) where we assessed the volatilization 1, 2, 5, 7, 10, 14, 18 days after...

Author(s): Jéssica Caroline Coppo, Maria do Carmo Lana, Marilda schmoller, Graziely Gody, Diego Fatecha Fois, Samara Brandão Queiroz, Eloisa Lorenzetti, Rodrigo Fernado Dourado, Marlon Rafael Luft, Danimar Dalla Rosa   and Cesar Kent Hoshiba Kawavata

August 2016

Soil management effects on phosphorus sorption and external P requirement in oxisols of Malawi

Oxisols are one of the major soils of Malawi and they are high in P sorption. Conservation agriculture has been practiced on this soil for some years now but soil management effects on P sorption and external P requirement (EPR) of Oxisols in Malawi have not, however, been determined. Soil management effects on P sorption and EPR of Oxisols in Malawi were therefore determined in the present study. The effects studied...

Author(s): Mnthambala F., James H. A. Maida, Max W. Lowole and Venon H. Kabambe

August 2016

Liming and selenium application impact on plant available selenium in selected soils of Malawi

Selenium (Se) is an essential micronutrient for humans and other animals. Its deficiency in food can cause cancer, cardiovascular and other diseases in humans. In high concentrations, Se is toxic for humans, animals and plants. The bioavailability of Se in soils largely determines the Se level in food, feed and therefore throughout the nutrition chain. Selenium content in soils is highly variable. The objective of this...

Author(s): B. Masanza, J. H. A. Maida, A. D. C. Chilimba, M. W. Lowole and P. C. Nalivata

July 2016

Application of silicon ameliorated salinity stress and improved wheat yield

Management of soil salinity is an important research field around the globe, especially when associated with the limited water resources. This work aimed to improve the growth and yield of wheat (Triticum aestivum L. CV. Sakha-93) grown under salinity stress. A completely randomized design pot experiment with three replications was conducted in a loamy soil with various levels of salinity under local weather conditions....

Author(s): M. A. Ibrahim, A. M. Merwad, E. A. Elnaka, C. L. Burras and L. Follett

July 2016

Evaluation of soil contamination in the surroundings of Kerala Minerals and Metals Limited (KMML) industrial area in Kollam District, Kerala, South India

Toxic trace metals concentration in soil exerts a decisive impact on soil quality in an industrial area. In recent days, industrialization is growing at very faster rate than any other activities. Due to industrialization, the pollution load for water, air and soil is increasing day by day. Metal pollution in soil possess a serious threat to the human health and safety of agricultural production. An attempt is made here...

Author(s): Beena, K. N and Jaya, D. S.

June 2016

Kinetic of pigs’ manures decomposition and nutrient release pattern in ferralitic soil of Benin (West Africa)

Our study aims to assess the kinetic of the decomposition and nutrient mineralization process of organic manures from pigs’ dejection. A litter bag study was carried out during 12 weeks following decomposition and nutrient release process in ferralitic soil in southern Benin (West Africa). 200 g of pigs’ manures from four groups of pigs fed with four diets were considered as treatments: T1 (recommended diet...

Author(s): Aliou Saïdou, Hervé  Kouessivi Janvier Bokossa, Emile Didier Fiogbé and Dansou Kossou

May 2016

Impacts of anthropogenic activities on physical and selected chemical properties of soils in the natural forest˗savanna of Northern Ghana

This study assessed the impacts of anthropogenic activities on the textural and selected chemical properties of the soils in the natural forest˗savanna in northern Ghana by comparing the soil physicochemical status of protected forests and neighbouring unprotected forests which are prone to human pressures (except farming and settlements). Three study zones (Wungu, Serigu, and Mognori, which are parts of West Mamprusi,...

Author(s): BIYOGUE DOUTI Nang

May 2016

Goodness of fit of three infiltration models of a soil under long-term trial in Samaru, Northern Guinea Savanna of Nigeria

Good strategies for water conservation, runoff or flood control and erosion management can be achieved by proper understanding of soil water infiltration characteristics. Three infiltration models Kostiakov’s (1932), Philip’s (1957) and Horton’s (1940) were used to evaluate the infiltration characteristics of soils in a long-term fertilizer experiment in the Northern Guinea Savanna Agro Ecological zone...

Author(s): A. H. Girei, A. Abdulkadir and N. Abdu

April 2016

Effect of silicon application on roselle (Hibiscus sabdariffa L.) grown in a Vertisol in Egypt

Roselle (Hibiscus sabdariffa L.) is an important tropical and subtropical crop, because of its multi uses in the medicinal purposes as well as food industries. A plot experiment was conducted in a Vertisol in Egypt over two sequential seasons (2013 and 2014) to assess the effect of silicon (Si) fertilization on roselle growth and yield. Specific growth characteristics measured were: plant heights, branching, and leaves;...

Author(s): Mohammed A. Abdelkader, Mostafa A. Ibrahim and Lee C. Burras

March 2016

Analysis of soils from cassava farms in floodplain terrain

The study was carried out to analyze soils from cassava farms in floodplain terrain of the River Benue. Cassava is the most extensively cultivated crop in Benue State. Soil samples were collected randomly from cassava farms owned by members of farming cooperative societies in Makurdi, Tarka, and Gboko Local Government Areas. These samples were analysed for physical and chemical properties. The pH was slightly acidic...

Author(s): Abah R. C., and Petja B. M.,

March 2016

The effect of Jatropha curcas L. leaf litter decomposition on soil carbon and nitrogen status and bacterial community structure (Senegal)

The cultivation of Jatropha curcas L. as a biodiesel feedstock has been encouraged in Senegal to reduce dependence on fossil fuels and mitigate the effects of climate change. J. curcasis is a poisonous plant which sheds its leaves during the dry season. Although the leaves are toxic for animals, they can help to recycle soil organic matter. This study set out to determine the effect of the decomposition dynamics of...

Author(s): Tidiane Dieye, Komi Assigbetse, Ibrahima Diedhiou, Mbacké Sembene, Amadou Lamine Dieng, Mariama Gueye and Dominique Masse

February 2016

Effect of conservation tillage on soil respiration rate and water content under wheat/maize system in North China Plain

Conservation tillage management can improve soil moisture and reduce or increase soil CO2 emission. Soil CO2 flux rate, soil moisture, and the relationship between soil respiration and temperature on North China Plain throughout a 3-year period was determined. Tillage systems were rotary tillage without crop residues (CT), rotary tillage with crop residues incorporated into the soil in winter, and no-tillage with crop...

Author(s): Houssou Assa  Albert,  Liang Guopeng, Gao Lili, Jing Li, Wu Xueping, Wu Huijun, Wang Xiaobin and Cai  Dianxiong

January 2016

Hydrodynamic behaviour of a pilot scale anaerobic baffled reactor treating SWINE wastewater from farming

Swine effluents are among the high pollutants effluent generated by agro-industrial activities, and therefore, inappropriate discharge can initiate fatal processes, such as eutrophication, pollution, and asphyxia of the aquatic biota. In this regard, the anaerobic baffled reactor (ABR) is viewed as a potential bioreactor to handle swine effluents since the baffles play a key role in organic matter degradation. The...

Author(s): Mario Tauzene Afonso Matangue, Claudio Milton Montenegro Campos, Erlon Pereira, Fabiana Amorim and Regina Vila boas

December 2015

Chemical soil degradation as a result of contamination: A review

Chemical soil degradation after erosion is the second most abundant form of soil degradation and as such poses a threat to our finite soil resource, as it tends to render it less usable. It is therefore necessary to understand the means by which soils are degraded chemically. This review paper seeks to highlight some of the causes of soil chemical degradation. One way by which soils degrade chemically is through soil...

Author(s): Richmond Narh Tetteh

October 2015

Effects of integrating different soil and water conservation measures into hillside area closure on selected soil properties in Hawassa Zuria District, Ethiopia

Land degradation is a serious global problem. Pursuant to the alarming environmental degradation, the government and non-governmental organizations have implemented various land rehabilitation programs. Among this the predominant one is area closures, through tree-planting and physical conservation measures such as terracing. This study was designed to investigate the impact of integrating soil and water conservation...

Author(s): Lemma Tiki, Menfes Tadesse and Fantaw Yimer

October 2015

Effect of lime and goat manure on soil acidity and maize (Zea mays) growth parameters at Kavutiri, Embu County- Central Kenya

A greenhouse pot experiment was conducted to determine the effect of agricultural lime and goat manureon soil acidity and maize growth parameters using soils from Kavutiri-Embu County. Nitrogen and phosphorus fertilizers at the rates of 50 and 70 kg ha-1, respectively, and goat manure at three rates (0, 5 and 10 mg ha-1) and agricultural lime (CaCO3) at six rates (0, 2.5, 5, 7.5, 10, and 12.5 mg ha-1) were used for the...

Author(s): Harun Ireri Gitari, Benson Evans Mochoge and Benjamin Oginga Danga

October 2015

Mapping gully erosion in Abia State, Nigeria using Geographic Information Systems (GIS) and remote sensing techniques

Soil erosion is of major concern in Abia State, Nigeria. This study adopts a combination of Geographic Information Systems (GIS) and Remote Sensing as a tool to study and map soil erosion menace in Abia State. For this research, several datasets that represent climate, soil, geology, topographic and anthropogenic factors were used as the basic requirements for environmental modeling of soil loss using Universal Soil...

Author(s): Nnabugwu O. Uluocha and Ibeabuchi Uwadiegwu

September 2015

Land degradation and the sustainability of agricultural production in Nigeria: A review

Human-induced soil degradation that results from erosion, losses of organic matter, plant nutrients and soil compaction are the key factors threatening food security in Nigeria. Food import statistics show that Nigeria is food deficit and starvation stalks the country. The paper examined in some details some factors of soil degradation, their effects on crop yield decline and its impact on the people and the...

Author(s): A. S. Ajayi

September 2015

Applicability of conservation agriculture for climate change adaptation in Rwanda’s situation

Improving food security and environmental conservation should be the main targets of innovative farming systems. Conservation agriculture (CA), based on minimum tillage, crop residue retention and crop rotations has been proposed against poor agricultural productivity and soil degradation. This paper discusses the applicability and potential benefits of CA in Rwanda under the unfolding climate change scenario....

Author(s): M. Kabirigi, B. Musana, F. Ngetich, J. Mugwe, A. Mukuralinda and N. L. Nabahungu

September 2015

Liming and fertiliser P interaction effects on some indices of fertility of selected Malawi acidic soils

Laboratory investigations were conducted to determine effects of liming materials and inorganic phosphatic fertilisers on some indices of soil fertility. Results showed that soil bulk density decreased with increasing additions of liming materials and that interaction effects of dolomitic limestone and mineral fertiliser P increased soil pH from 4.4 for the unlimed top-soils to 6.3 after 3 t ha‒1 of dolomitic limestone...

Author(s): M. J. Benjala, J. H. A Maida, M. W. Lowole and V. H. Kabambe

September 2015

Elucidating the causes of low phosphorus levels in ferralsols of Siaya County, Western Kenya

Low available soil phosphorus (P) is one of the factors limiting crop production in western Kenya. Availability of soil P depends on amount of apatite, addition of P fertilizers, P fixing potential of a soil, soil water content and P removal by crops. Ferralsols are one of the major soil groups in Siaya County in western Kenya with low available P. We evaluated the possible causes of low available P in Ferralsols in the...

Author(s): C. O. Owino, P. O. Owuor and D. O. Sigunga

August 2015

Spatial variability and classification of soils on a Legon hill catena in the Accra Plains, Ghana

Properties of five soils developed on different positions of a Legon hill catena in the Accra Plains, Ghana, were studied. Nyigbenya, Toje, Adenta, Haatso and Alajo series were located on the higher upperslope, lower upperslope, middle slope, lower slope and bottom slope positions, respectively. All the soils had bulk density between 1.00 and 1.40 Mg m-3 and pH (KCl) > 5.1. Alajo series showed relatively higher pH...

Author(s): Peter N. Eze

August 2015

Soil properties and carbon sequestration under desert date (Balanites aegyptiaca) in the lowlands of Northern Ethiopia

This study assessed the effect of Balanites aegyptiaca on soil properties and carbon sequestration. A 100 × 100 m plot of entirely the same biophysical setting was delineated. Nine trees of relatively the same diameter at breast height (DBH) were selected to study the effect of the tree on soil properties. In total, 81 soil samples were collected from three radii distances from each tree, that is 0 - 2, 2 - 4, and...

Author(s): Girma Tilahun, Fassil Kebede and Solomon Haftu

August 2015

Biostimulation of hydrocarbon utilizing bacteria in soil contaminated with spent engine oil using banana and plantain agro-wastes

hydrocarbon utilizing bacteria in soil contaminated with spent engine oil, as an alternative to inorganic fertilizers was investigated. Two types of agro-wastes were used for biostimulation of hydrocarbon degraders in soil contaminated with 10% w/w spent engine oil. 100g w/w each of plaintain and banana agro-wastes were supplemented and mixed with spiked soil. The rates of biodegradation of the oil were studied for a...

Author(s): Victor Taghoghor Omoni, Celestine Uzoma Aguoru , Emmanuel Odogbo Edoh and Oluwatayo Makinde

July 2015

Mitigating N2O emissions from agriculture: A review of the current knowledge on soil system modelling, environmental factors and management practices influencing emissions

The AgriGES project is a Concerted Research Action lead by Gembloux Agro-Bio Tech, aiming to quantify methane and nitrous oxide emission from pastures and crop fields, respectively. Besides quantification, a second important goal of the AgriGES project is to study the flux dynamics and to gain a better understanding of the biophysical processes coming into play. We focus here on N2O fluxes and first propose an overview...

Author(s): D. Regaert, M. Aubinet and C. Moureaux

July 2015

Influence of cassava peels and poultry manure-based compost on soil properties, growth and yield of waterleaf (Talinum triangulare Jacq) in an ultisol of south-eastern Nigeria

Effects of cassava peels and poultry manure based compost and their sole applications on soil properties, growth and yield of waterleaf were investigated at the University of Calabar Teaching and Research Farm during 2013 and 2014 cropping seasons.  The experiment was laid out in a randomized complete block design (RCBD) with three replications.  There were seven treatments consisting of mixture of cassava...

Author(s): O. B. Iren, J. F. Akpan, V. F. Ediene and E. E. Asanga

July 2015

Variation in nutrient concentrations of basement complex and sedimentary rock of teak plantations in Ogun State, Southwest Nigeria

This study examined the differences in the nutrient concentration of the parent material of teak plantations under basement and sedimentary rocks in south western Nigeria. Systematic line transect was employed to establish 18 plots (30 m x 30 m), each in Ilaro (sedimentary rock) and Olokemeji (basement complex rock) plantations which were 37, 40 and 42 years old while twelve rock samples each from 3 quadrants each of 30...

Author(s): OGUNDELE, Fatai Olakunle

June 2015

Introduction to a quantitative method for assessment of visual impacts of Tehran Towers

Landscape arrangement significantly influences observer’s visual experience of the environment. Since measuring this qualitative experience is more based on personal judgments than mathematical techniques, representing “quantifying methods” in this field demands a significant amount of caution and accuracy. This research is an attempt to quantify visual impacts of seven-story- and higher-buildings on...

Author(s): Hoda KARIMIPOUR, Mehdi MOJTAHEDI and Forood AZARI DEHKORDI

June 2015

Forms and content of sesquioxides in soils on basement complexes of northern Guinea savanna of Nigeria

The forms and content of sesquioxides (Fe and Mn) were studied in soils developed on basement complex rocks within Northern Guinea Savanna of Nigeria. The study showed that variation in parent materials and pedogenetic development significantly influenced content of dithionite, oxalate extractable forms of iron and active iron ratio in these soils. The mean values of active sesquioxides (Fe and Mn) ratios between the...

Author(s): Maniyunda L. M., Raji B. A., Odunze A. C. and Malgwi W. B.

June 2015

Effects of soil conservation technologies in improving soil productivity in northern Ghana

A four year study was carried out to ascertain the usefulness of conservation agriculture (CA) technologies in improving biomass cover as well as the physical and chemical properties of the soil across 6 communities in northern Ghana. The conservation agriculture introduced include: Zero tillage, cover cropping, crop rotation and intercropping. Bunding was also introduced as a means of moisture retention. After four...

Author(s): Kugbe X. Joseph, and Zakaria Issahaku

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