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: 287

JSSEM Articles

Assessment of selected soil physicochemical properties on different land-use systems and landscape positions at Hamesa watershed, Wolayita zone, Southern Ethiopia

August 2020

The investigation was undertaken at Hamesa watershed of Wolayita Zone with the aim to assess the consequences of land-use systems and topography on the physical and chemical properties of selected soils. Surface soil samples taken at 0-15 and 15-30 cm depths from three land-use systems (enset, grassland and maize fields) were collected under three slope positions (upper, middle and lower). Both the clay and bulk density...

Author(s): Markos Mathewos  

Shea waste slurry as an organic soil amendment of tropical soils in the Tamale Metropolis, Northern Ghana

July 2020

Infertile and less productive soil due to continuous cropping, poor soil management and other forms of land exploitation are mostly amended using inorganic fertiliser. Shea waste slurry (SWS) as an organic soil amendment material was applied to soils in two locations and its effect on plant primary and secondary nutrients evaluated. One-way diagonal method was employed in sampling soil from fields measuring 25...

Author(s): Abagale F. K., Alazuga I. N. A. and Osei A. R.  

Effect of biochar application on selected soil properties in Southwestern Nigeria

July 2020

This study investigated the effect of biochar on dispersible clay and soil chemical properties. The treatments consisted of four rates of milled biochar (0, 450, 900 and 1344 kg/ha) arranged in a Completely Randomized Design with four replicates. Surface (0-15 cm depth) soil of Iwo (Sandy loam) and Egbeda (Loamy sand) soil series were collected from the Teaching and Research Farm, Obafemi Awolowo University, Ile-Ife,...

Author(s): Olakayode A. O., Akinde B. P. and Egbebi I. A.  

Effect of graded compaction of tilled and untilled sandy loam soil on growth and yield of maize

July 2020

The performance of maize on tilled and untilled sandy loam soil, under different levels of compaction of 0, 2, 4 and 6 tractor-wheel passes in a humid tropical environment was investigated with a Massey Ferguson (MF) 90-disc plough, mounted on an MF 260 tractor. The experimentation had different aspects, respectively conducted in the field and laboratory, at the Rivers State University, Port Harcourt, Nigeria. The...

Author(s): Asinyetogha H. Igoni, Raphael B. Jumbo and Davidson D. Davis  

Validation of blended NPSB fertilizer rates on yield, yield components of Teff [Eragrostis tef (Zuccagni) Trotter] at vertisols of Hatsebo, Central Tigray, Ethiopia

June 2020

Application of unbalanced nutrition was the main yield limiting factor in the study area. Hence, an experiment was conducted during the 2017 cropping season on farmers’ fields to validate and determine optimum blended fertilizer rate for teff production. Eight levels of NPSB (0, 25, 50, 100, 150, 200, 250 and 300 kg ha-1) and recommended NP (100 kg ha-1 urea and 100 kg ha-1TSP) were used as treatments and set in...

Author(s): Tewolde Berhe, Gebreyohannes Girmay and Abrha Kidanemariam  

Comparison of several lime requirement methods in luvisol of Southern Ethiopia

June 2020

Ethiopian soil affected by strong acidity accounts for about 28% of the entire country and 43% of the total cultivated land. Soil acidity is expanding in scope and magnitude. To tackle the problem, lime addition is one of the solutions. The lack of soil specific lime recommendation method(s) to amend the increasing acidification problem has been one of the challenges to boost crop production. Therefore, a greenhouse...

Author(s): Abebe Abay, Tesfaye Hirpo, Ayele Abebe and Fikre Mekuria  

Economic importance of termites and integrated soil and water conservation for the rehabilitation of termite-degraded lands and termite management in Ethiopia

May 2020

In Ethiopia, termites pose serious threat to a variety of agricultural crops, forestry, rangelands, houses and other wooden structures. Termite problem is particularly prevalent in the western part of the country, where it has persisted for many years and has received wide publicity. Termites appeared in the region for the first time in 1904 at a specific place called Bafano Koreche around Kiltu Kara town in West...

Author(s): Daniel Getahun Debelo  

Soil conservation techniques among arable crop farmers in Odo Otin local government area, Osun state: A multinomial logit approach

May 2020

The study investigated the soil conservation techniques among the arable farmers in Odo Otin local government area of Osun State. Two-stage sampling procedure was employed for the study. Primary data were collected from 120 arable crop farmers in the Local Government Area. Data collected were analysed using descriptive statistics; multinomial logit regression model. Result shows that most the respondents were aware of...

Author(s): Agboola Timothy Olusola, Balogun Olubunmi Lawrence, Ayantoye Kayode, Akinwole Oladele Timothy and Ayo-Bello Taofeek Ayodeji  

Effect of flooding on peatland in U Minh Thuong National Park, Vietnam

May 2020

U Minh Thuong National Park is one of the two significant areas of peatland swamp forest remaining in Vietnam, and is recognized as one of the three highest priority sites for wetland conservation in Mekong Delta. A large area of Melaleuca Forest in the park was destroyed and degraded by a devastating fire in 2002. Besides this, an artificial flooding technique for controlling fire applied all over the park for several...

Author(s): Thai Thanh Luom  

Compost biomass, pH value and C, N, K contents of some local wild plant species: Case of Panicum maximum L., Trypsa- cum laxum L. and Pueraria javanica (Benth.) Benth, in the Region of Kisangani, Democratic Republic of Congo

April 2020

Soil fertility transience and weed management are often among decried impediments undermining agricultural productivity in many tropical countries. A study aiming at transforming baffling problems of abundant weed biomasses especially that of Panicum maximum (T1), Tryps-acum laxum (T2) and Pueraria javanica (T3), often cause of crop yield loss into advantage to enhance soil fertility, increase crop productivity as well...

Author(s): Tanzito  Adjumati  Georges, Adipandi  Balewamegoto  Richard, Dungu  Makalu  Alexis, Monde  Te-Kazagba Godfroid and Ibanda  Pembele  Angele  

Soil moisture retention and rainfed wheat yield variations by the addition of gypsum and green manure

March 2020

In rainfed tract, the success of agriculture depends on conservation and efficient use of soil moisture and nutrients availability that directly linked with the presence of moisture in soil. The moisture can be conserved through several means including green manures and gypsum addition. The experiment was conducted to investigate the integrated effect of green manures and gypsum for moisture conservation and their...

Author(s): Rahina Kausar, Muhammad Imran Akram, Muhammad Iqbal Choudhary, Ayesha Malik, Abdur Rashid Zahid and Basharat Ali  

Use of charcoal (biochar) to enhance tropical soil fertility: A case of Masako in Democratic Republic of Congo

March 2020

Soil fertility transience in the region of Masako in Democratic Republic (RD) of Congo remains a major challenge to sustainable agricultural production. Recently, biochar application as soil amendment has attracted attention of the people across the world owing to its potential to improve soil physicochemical properties, crop yield and carbon sequestration into the soil. A study was conducted in Masako to analyze the...

Author(s): Tanzito G, Ibanda P. A., Ocan D., and Lejoly J.  

Effects of long term sugarcane production on soils physicochemical properties at Finchaa sugar Estate

March 2020

In Ethiopia, where sugarcane has been cultivated for over 20 years, changes in soil physicochemical properties are expected to occur albeit information on the extent of change is scanty. A study was conducted in 2015 at Finchaa Sugar Estate with the objective of assessing the status of selected soil properties under long term mechanized sugarcane cultivation. Disturbed composite and undisturbed soil samples from 0-30...

Author(s): Tesfaye Wakgari, Kibebew Kibret, Bobe Bedadi, Melesse Temesgen and Teklu Erkossa  

Optimization of the analytical method for the determination of organic matter

February 2020

Soil organic matter represents the remains of roots, plant materials, dead organisms in varies stages of decomposition and synthesis and is variable in composition. Walkley-Black method for the determination of organic matter is the most common method; however, it requires a lot of reagents and chemicals including potassium dichromate which is toxic especially when it is in a hexavalent form. It is very important to be...

Author(s): Zeyede Aregahegn  

Effect of vermicompost and blended fertilizers rates on yield and yield components of Tef (Eragrostis tef (Zucc.) Trotter)

November 2019

Tef is a stable crop in Ethiopia in which its yield is constrained by poor soil fertility management. Therefore, a field experiment was conducted for two consecutive years during 2016 and 2017 on clayey textural soil to assess the effect of vermicompost and inorganic fertilizer rates on yield and yield components of tef. Accordingly, field experiment with four levels of vermicompost (0, 2, 4 and 6 t ha-1) and four...

Author(s): Kinfe Tekulu, Tsadik Tadele, Tewolde Berhe, Weldegebreal Gebrehiwot, Gebresemaeti Kahsu, Solomon Mebrahtom, Goitom Aregawi and Gidena Tasew  

Soil bulk density, soil moisture content and yield of Tef (Eragrostis tef) influenced by Acacia seyal Del canopy in Parkland agro-forestry system

October 2019

The effect of Acacia seyal tree on soil bulk density, soil moisture content, grain and biomass yield of tef (Eragrostis tef) were examined on six selected comparable A. seyal trees on croplands. Composite soil samples (6 trees × 3 distances × 2 soil depths) were collected at three distances from the tree base (1, 2.5 and 9 m) and two soil depths (0-15 and 15-30 cm) in four radial directions. Grain and...

Author(s): Abera Tesfaye and Bekele Lemma  

Evaluation of some selected forage grasses for their salt tolerance, ameliorative effect and biomass yield under salt affected soil at Southern Afar, Ethiopia

September 2019

Soil salinity is a growing problem on many irrigated parts of arid and semi-arid areas of Ethiopia. Utilization of improved salt-tolerant forage grasses help farmers to maximize production and reclaim saline soil. A study was conducted at Werer Agricultural Research Center (WARC) from 2012 to 2014 to evaluate performance of four forage grass species of salinity tolerance, ameliorative effect and biomass production. The...

Author(s): Ashenafi Worku, Bethel Nekir Lemma Mamo and Teshome Bekele  

Impacts of soil and water conservation on crop yield, soil properties, water resources, and carbon sequestration: A review

September 2019

This paper reviews the impact of soil and water conservation (SWC) measures on crop yield, soil properties, water resources and carbon sequestration. Land degradation due to soil erosion in Ethiopia is too severe which affects the livelihood of a community and ecosystem functions. The dry and highland part of the country was identified as seriously vulnerable to land degradation because of soil erosion. And, soil...

Author(s): Abebe Bezu and Ketema Tezera  

Soil characterization and evaluation of blended (YaraMila cereal) fertilizer for bread wheat (Triticum aestivum L.) production at Aleltu areas in North Shewa Zone of Oromia region

September 2019

The main objective of the study was to characterize the soils on the basis of selected soil physicochemical properties and to evaluate the effects of blended fertilizer (YaraMila cereal) applications on yield and yield components of bread wheat on the major soil types in the study area. The field experiment involved 5 treatments (control, three rates of blended fertilizer and recommended nitrogen and phosphorus...

Author(s): Serkalem Tamiru and Sosena Amsalu  

Characterization and agricultural potentials of some pedons derived from sand stone parent rock near Abeokuta, Southwestern Nigeria

August 2019

Successful crop production requires the knowledge of soil variation and the evaluation of the agricultural potentials of the land. Detailed land resource survey of approximately 100 ha land in Abeokuta North Local Government Area of Ogun State was carried out. Identified soil mapping units were examined in modal profiles. The soils were classified using the USDA Soil Taxonomy, FAO/IUSS World Reference Base (WRB) system...

Author(s): Orimoloye J. R., Amadi-Rapheal K. A. S. and Akinbola G. E.  

Spatial distribution of heavy metals in soil with distance from Tazama pipeline through the Mikumi National Park, Tanzania

July 2019

A total concentration of six studied heavy metals Arsenic (As), Lead (Pb), Chromium(Cr), Mercury (Hg) Cadmium (Cd) and Copper (Cu) were measured in soil across distances from TAZAMA pipeline in transects which have incidences of oil spillage and those which have no history of oil spillage. All studied heavy metals were detected in the study area. As, Pb and Cr were detected in both transects, that is, with oils spills...

Author(s): Doreen Jeremiah Mrimi, Julius William Nyahongo, Pål Olav Vedeld, Boniface Hussein Massawe and Charlotte Nakakaawa Jjunju  

Nitrogen use efficiency of tef [Eragrostis tef (Zucc.) Trotter] as affected by nitrogen fertilizer under chickpea-tef rotation at Tahtay Koraro District, North Ethiopia

May 2019

Study was carried out to evaluate the supplementary nitrogen requirement of tef to enhance nitrogen use efficiency of tef grown under chickpea-tef rotation cropping. On-farm, experiment was conducted during the 2015 main cropping season at Tahtay Koraro District of the Tigray regional State, Ethiopia on tef after preceding chickpea. The experiment was set in a randomized complete block design with three replications....

Author(s): Tsadik Tadele  

Technical viability of physical soil and water conservation structures implemented in Lake Hawassa watershed, southern Ethiopia.

May 2019

Physical soil and water conservation measures with ultimate intention of reducing sever soil erosion and its associated impact had been implemented for the last four decades in southern Ethiopia. Yet, so far the technical viability of the implemented structures weren't studied. Therefore, the objective of this study was to evaluate the technical viability of the implemented physical soil and water conservation...

Author(s): Yericho Berhanu Meshesha  

Soil degradation extent and dynamics of soil fertility improvement technologies In Majete Watershed, North Ethiopia

April 2019

Soil degradation is among the serious environmental hazards of this generation. It is threatening agricultural production and leads to food insecurity. The objective of this study is to assess current soil degradation status and soil fertility enhancement technologies practiced by the land owners. Data were obtained through questionnaires administered to 156 respondents selected randomly from all watershed...

Author(s): Kassaye Gurebiyaw Legese and Abay Gelanew  

Assessing soil quality of Abargay Rangeland in Farta District, Amhara Regional State, Ethiopia

April 2019

Rangelands provide many supporting, regulative and provisioning ecosystem services to man. The mounting anthropogenic pressure on them is, however, causing their degradation and decline in productivity. Assessment of their soil quality is important for identifying sustainable land management practices. The present investigation was, therefore, carried out to assess the soil quality of adjoining protected and unprotected...

Author(s): Tadla Guadie Feleke, Parshotam Datt Sharma and Dereje Tsegaye Selfeko    

Effect of Sulphur application and water salinity on soil and plant properties

February 2019

The main objective of this work was to study the effect of sulphur application and irrigation water quality on some soil properties of the calcareous, alluvial and sandy soils. A lysimeter experiment was conducted and filled with calcareous, alluvial and sandy soils to evaluate the impact of using elemental sulfur on the yields and mineral uptake of wheat plant. The experiment was cultivated with wheat plant (Triticum...

Author(s): Ahmed Ibrahim Mohamed, Ahmed Osman Mohamed and Ozories Mohamed Ali  

Adoption of soil conservation practices through knowledge governance: the Mexican experience

January 2019

Top-down and centralized soil conservation programs have caused low adoption of sustainable practices. The adoption is a multistage and adaptive process that relies on the management of local knowledge. The results of 61 surveys were analyzed in order to systematize experiences of soil knowledge governance involving social organizations and farmers. Soil knowledge governance was done mainly through the sharing of...

Author(s): Helena Cotler and Maria Luisa Cuevas  

Nutrient release pattern from Leptic Cambisols as influenced by vermicompost and inorganic fertilizer applications

January 2019

An experiment was conducted to determine the effects of vermicompost, inorganic fertilizers and their combinations on release of soil nutrients at different growth stages of wheat. A factorial combination of four levels of inorganic fertilizers (0, 33.33, 66.66, and 100% of the recommended NPK fertilizers) and vermicompost (0, 2, 4 and 6 t ha-1) were laid out in complete randomized design with three replications. Soil...

Author(s): Molla Hadis, Gashaw Meteke and Wassie Haile  

Soil moisture variability effects on maize crop performance along a toposequence of a terraced vertisol in Machakos, Kenya

January 2019

Recurrent droughts are often associated with crop failure and therefore food insecurity especially in semi-arid areas of Kenya. A study was conducted in Machakos County in the long rain and short rain seasons of 2014 to determine the effect of soil moisture variability on crop performances and yields along the toposequence of a terraced vertisol. The crops were grown as either sole maize, sole beans or maize-bean...

Author(s): Mbugua H., Baaru M. W. and Gachene C. K.  

Prospects for sustainable cocoa farming from the rainfall balance in the last thirty years at Lôh-Djiboua and Gôh post-pioneer regions, Côte d’Ivoire

November 2018

The rainfall disturbances observed in the recent decades in Côte d'Ivoire constitute a constraint for sustainable cocoa production, the mainstay of the Ivorian economy. These disturbances constitute, in addition to the losses of production and those from the quality of the cocoa beans, one of the causes of the high cocoa mortality at the recovery stage in all cocoa production area. The present study, carried...

Author(s): KASSIN Koffi Emmanuel, KOUAME Brou, COULIBALY Klotioloma, TAHI Gnon Mathias N’GUESSAN Walet Pierre, AKA Aka Romain, ASSI Marise Evelyne, GUIRAUD Brigitte Honorine, KONE Boake and YAO Guy Fermand  

Impact of pollution by the hydrocarbons on the biological activity of soils in Ouagadougou, Burkina Faso

November 2018

The microbial activity estimated by respirometry test method made it possible to measure the quantity of CO2 produced per day, from four soils polluted at different degrees by hydrocarbons. These samples have been wet to 2/3 of their maximal capacity of retention and incubated at 30°C for 30 days. The quantity of CO2 released and measured shows a high value (83.97 mg/100 g of soils against 36.05 mg/100 g of soils)...

Author(s): Pauline W. Kaboré-Ouédraogo, Cheik A. T. Ouattara, Paul W. Savadogo, Aboubacar S. Ouattara and Alfred S. Traoré    

Comparative performance of farming practices in terms of carbon sequestration potential of mulberry and soil organic carbon stock

October 2018

Experimentation under the study at Central Sericultural Research and Training Institute, Berhampore (West Bengal, India) was laid out in RBD comprising of seven treatments replicated thrice. The treatments consist of six different farming practices along with a fallow. Mulberry variety, S 1635, spaced at 60 x 60 cm was subjected to those farming practices under irrigated Gangetic alluvial soil. Three years’ field...

Author(s): Ranjit Kar, Vrajan Vijay and Kanika Trivedy  

Climate Change Effect and Adaptation Measures on Selected Soil Properties

October 2018

Soil sustainability in climate changing trends is critical to address future food security and safety. This study investigated the effect of air and soil temperature on some selected soil properties. The impact of soil conditioning with composted organic wastes on the temperature effect was also assessed. Four different chambers were set up using electrical bulbs of 60, 100, 200, and 300 W given air temperature ranges...

Author(s): Adeyeye Joseph Akintan Oluwakemi and Omoju Olanrewaju  

Mapping soil terrain resources and descriptions of agro-ecological zone in Dawuro and Gamo Gofa zones in south-western Ethiopia

October 2018

This study aims to identify and delineate land resources including soil, water and terrain resources, and major river basins, with demographic data and agro-ecological zone classification of general climatic conditions and vegetation characteristics of Gamo Gofa and Dawuro zones in South-western Ethiopia. Metadata source and visual assessment were used for this purpose. Agroecology zone classification is based on...

Author(s): Asrat Guja Amejo  

Applicability of the Mehlich-3 method for the site-specific soil nutrient management in Northern Mozambique

September 2018

Mehlich 3 (M-3) is a multi-nutrient extractant which provides a rapid and cost-effective soil test for various soils. This study investigated the applicability of M-3 for cation and micronutrient determination under the specific soil fertilization and crop rotation given in northern Mozambique. Cations and micronutrients extracted with M-3 were compared with the classical methods; neutral ammonium acetate (NH4OAc) for...

Author(s): Monrawee Fukuda, Satoshi Nakamura, Hisashi Nasukawa, Kazuhiro Naruo, Momade M. Ibraimo, Keiichiro Kobayashi and Tetsuji Oya  

Farmer’s perception of soil and watershed degradation and the assessment of soil nutrients status under agroforestry systems in the Western Highlands of Cameroon: Case of Ako sub division

August 2018

The objective of this study was to assess farmers’ perception regarding the activities which degrade the soil and watershed and to analyze soil nutrients status under different agroforestry systems. The aim of the study was to identify and promote locally-known agroforestry-based practices for soil and watershed conservation in the savannah highland area of Cameroon. Semi-structured questionnaires were...

Author(s): Njini Loveline Munjeb, Yerima Bernard Palmer Kfuban and Avana Tientcheu Marie Louise  

Characterization of soils under major land uses in Chencha District, South Ethiopia

August 2018

Assessing land use induced changes in soil properties is essential for addressing the issues of land use planning and sustainable land productivity in highlands of Ethiopia. The surface and profile soil samples were collected from forest (FL) cultivated (CL) and grass/pasture lands (GL) in Doko Yoyira (DY), Aiezo Tula (AT) and Gendona Gembela (GG) in Chencha district, Gamo-Gofa zone in May 2014, which aims to assess...

Author(s): Wakshum Shiferaw Gemeda and Sharma Parshotam Datt  

Prospects of alternative copping systems for salt-affected soils in Ethiopia

July 2018

Soil salinization is one of the major constraints in achieving food security and environmental degradation in Ethiopia. Restoration of salt-affected lands into productive lands and protection of newly developed areas from the spread of salinity is therefore of paramount importance. In high salinity areas where technical solutions to soil rehabilitation are expensive and time consuming and growth of normal field crops is...

Author(s): Asad Sarwar Qureshi, Tesfaye Ertebo and Melese Mehansiwala  

Effects of organic fertilizer (NPK 5-9-19) and mineral (NPK 12-11-18) on soil chemical properties in tomato crop in the South and Mid-west of the Ivory Coast

July 2018

A study on mineral and organic liquid fertilizer was carried out in the South and Central West of Ivory Coast during a period of two years in order to improve soil fertility in tomato crop. More specifically, it evaluated the effects of 4 doses of organic fertilizer (NPK 5-9-19), associated or not with mineral fertilizer (NPK 12-11-18) on the content of soil organic matter, C/N ratio, the sum of exchangeable bases,...

Author(s): Angui T. K. P.,  Kotaix  A. J. A., Kassin K. E., N’goran K. E., Pierrec Z. K. and Bonfoh B.  

Short-term amelioration of soil properties and maize yield enhancement using animal wastes in degraded hydromorphic soils of Southeastern Nigeria

June 2018

Amending  soil  with animal wastes can be useful in food production as well as a means of  waste disposal. It has been found to enhance physico-chemical properties and enhance yield. Poultry manure (PM), swine waste (SW), cow dung (CD), and sewage sludge (SS) were added to a hydromorphic ultisol (sandy loam, typic haplusult at the rate of 10 tha-1 (12 kgplot-1)). Maize hybrid (Oba super II) was used as...

Author(s): Okenmuo F. C., Odii O. U. and Okolo C. C.  

Influence of phosphorus and potassium fertilizers on growth and yield of potato (Solanum tuberosum L.) at Assosa, Benishangul Gumuz Regional State, Western Ethiopia

June 2018

Potato is one of the most important food security and cash crops in Ethiopia. It is constrained by poor soil fertility. A field experiment was conducted at Assosa Agricultural Research Centre to investigate the effect of phosphorus and potassium fertilizers on the growth performance and yield of potato. The experiment was laid out as a randomized complete block design (RCBD) in 4×6 factorial arrangement of...

Author(s): Habtam Setu, Nigussie Dechassa and Yibekal Alemayehu

Selected physicochemical properties and quality of soils around some rivers of Cameroon

May 2018

Rivers Wouri and Meme feed the Wouri and Rio del Rey mangroves of Cameroon, respectively. This study examined the physicochemical properties of soils that were collected around the vicinity of these rivers. This was to ascertain the former’s role in controlling the movement of chemical entities into these rivers and nutrient quality. Twenty-one surface soil samples were collected (0-20 cm depth) within the...

Author(s): Norbert Nkafu Fomenky, Aaron Suh Tening, George Bindeh Chuyong, Kenneth Mbene, Godswill Azinwie Asongwe and Vivian Bih Che  

Potassium dynamics under enset (Ensete ventricosom cheesman) farming systems of Sidama zone, Southern Ethiopia

April 2018

Potassium dynamics of soils is constituted by constantly changing relationship between soil K forms, and this relation is affected by some soil physical and chemical properties. Most Sidama (south Ethiopia) farmers grow enset crops which have high K requirements. The soils were collected from Awassa-Zuriya and Dale districts; ’Woinadega’ (warm subtropical climate) and Hula district ‘Dega’ (wet,...

Author(s): Kibreselassie Daniel Auge, Tekalign Mamo Assefa, Wassie Haile Woldeyohannes and Bizuayehu Tesfaye Asfaw

Effect of soil factors on net N-mineralization and decomposition rate of organic nutrient sources

April 2018

Rate of mineralization for organic nutrient sources (ONS) depends on temperature, soil moisture, soil chemical, physical, biological properties as well as the chemical composition of the ONS. Erythrina abyssinica (EA), Erythrina brucei (EB) and Ensete ventricosum (EV) (ONS) were collected from Sidama and Wolaita, southern Ethiopia. Soil samples (0-20 cm) depths were collected from Cambisols and Luvisols areas....

Author(s): Abebe Abay  

Prediction of nitrogen availability based on soil organic carbon in commercial mulberry vegetation of Eastern India

March 2018

Appropriate quantification of nitrogen availability in soil is the prerequisite for proper implementation of soil-test based fertilizer-application scheme. However, most of the soil testing laboratories use soil organic carbon level to suggest fertilizer dose for nitrogen; hence, the present study has been initiated to develop prediction equation for estimating available nitrogen content of soil from its organic carbon...

Author(s): Ranjit Kar, Vijay Vrajan, Mrinal Kanti Ghosh, Sandip Kumar Dutta and Kanika Trivedy

Dried Azolla pinnata as a supplementary nitrogen source for lowland rice production in a Calcic Natraquert

March 2018

A pot experiment was conducted in the experimental field of the University of Ghana, Legon to examine the effectiveness of dry Azolla as N source in flooded rice field. The treatments included incorporating fresh Azolla (FA at 90 kg N/ha), dry Azolla (DA at 90 kg N/ha), dry Azolla  + Ammonium sulphate  (DA at 45 kg N/ha + AS at 45 kg N/ha), fresh Azolla + dry Azolla (FA at 45 kg N/ha  + DA at 45 kg N/ha),...

Author(s): Agbagba G., Asuming-Brempong S. and Lawson I. Y. D.

Soil erosion magnitude of upland farming practices in Bataan

March 2018

There are factors affecting erosion such as climate, soil type, vegetation and topography. Upland areas are denuding exponentially due to the fact that those people looking for livelihood had little concern and awareness on environmental sustainability and management. Upland farming practices that are easy like weeding, pest control and fertilization were often carried out without soil erosion control and water...

Author(s): Fernando V. Gonzales, Ricson L. Ines, Walter G. Valdez, Jonathan E. Lacayanga and  Editha A. Ganado

Short term effects of thinning on soil organic carbon fractions, soil properties, and forest floor in Cunninghamia lanceolata plantations

February 2018

Forest management impacts on the soil carbon pool and soil properties. This study analyzed the changes of soil organic carbon (SOC) fractions, soil properties, and forest floor in a Chinese fir (Cunninghamia lanceolata) plantation after two years of thinning in Eastern China. The experiment consisted of three thinning treatments: unthinned, moderate thinned (stand stem density reduced by approximately 21%), and heavy...

Author(s): Xiangrong Cheng, Mukui Yu and Zhengcai Li  

Potassium adsorption characteristics of five different textured soils under enset (Ensete ventricosom cheesman) farming systems of Sidama zone, South Ethiopia

January 2018

A laboratory study was conducted to determine the potassium (K) adsorption characteristics of five soils under enset (Ensete ventricosom cheesman) farming system in Sidama. Potassium adsorption isotherms were constructed by equilibrating 5 g soil samples with 5 levels of K (0 to 78mg/L) as KCl in 10 mmoles/L CaCl2 solutions. Suspensions were shaken for half an hour. Adsorption data were fitted to Freundlich, Langmuir...

Author(s): Kibreselassie Daniel Auge, Tekalign Mamo Assefa, Wassie Haile Woldeyohannes and Bizuayehu Tesfaye Asfaw  

Comparison of bulk density methods in determining soil organic carbon storage under different land use types

January 2018

The different methods used for determining soil bulk density make the result of soil organic carbon (SOC) estimation vary. The study was conducted on five land use types in Gergera watershed, Tigray, Ethiopia. This study investigates two methods (Core and Excavation methods) of soil bulk density and their relative consequence on SOC; it also evaluates which method is better for estimating SOC stock. Both methods were...

Author(s): Abrha Brhan Gebre  

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