Research Papers/Topics in Soil Science

RESPONSE OF OKRA (Abelmoschus esculentus L.Moench) TO BIOCHAR DERIVED FROM COCOA POD HUSK AND NPK

ABSTRACTThe need to improve soil fertility and enhance crop production has led to a renewed interest in the use of cocoa pod husk (CPH) in form of biochar, an organic fertilizer, relative to, mineral fertilizer as soil amendment. The deleterious effect of inorganic fertilizer, on the environment, has been enumerated and the global effect of CPH.Field experiment on okra (Abelmoschus esculentus ) fertilized with Biochar. deri\ed from cocoa pod husks (CPH), was conducted at the Cocoa Research In...

THE INFLUENCE OF DRIP IRRIGATION FREQUENCY AND MULCHING ON THE SOIL PHYSICAL PROPERTIES AND YIELD IN OKRA. (Abelmoschus esculentus)

AbstractSeveral irrigation systems or methods have been use by many people to efficiently provide water for crop productivity. Drip irrigation system has been a best method so far, supplying water to plant, maximizing water usage, it tends to be cost effective and reduces stress. The field experiment was conducted between January 2017 and March 2017 at the Teaching and Research Farm, Federal University Oye-Ekiti (lkole Campus). The experiment design used entail; two factorial laid in a random...

EFFECT OF DIFFERENT LAND USE ON SOME SELECTED PHYSICOCHEMICAL PROPERTIES AND MICRO-AGGREGATE STABILITY INDICES IN TWO AGRO-ECOLOGICAL ZONES IN EKITI STATE, SOUTHWESTERN NIGERIA.

 ABSTRACTA study was conducted to investigate changes that may occur in the soil due to conversion of forest land to plantation, fallow and arable lands. Four locations in two-agro-ecological zones at Ikole Local Government Area, Ekiti State, were used for this study. They are; Itapaji (L 1), Asin (L2); in rainforest agro-ecological zone and Odo-Ogo (L3), Odo-Ayedun (L4) in derived savannah. Soil parameters evaluated include particle size distribution, bulk density, saturated moisture co...

THE EFFECT OF LAND USE ON SOIL AGGREGATE STABILITY AND SOIL CARBON SEQUESTRATION IN SOME SELECTED SOILS OF SOUTH EASTERN NIGERIA

 AbstractThe Information on the effect of different land use systems on the aggregate stability and carbon sequestration is crucial for the recommendation of efficient land management practices. This study was conducted to evaluate the variation in aggregate stability and carbon sequestration under different land use systems in two agro ecological zones of south eastern Nigeria. The agro ecological zones were derived savannah and rainforest while the land use systems studied were cu...

LNFLUENCE OF BIOCHAR ON VEGETABLE (Amaranthus viridis) UPTAKE ON CADMIUM CONTAMINATED SOIL

 ABSTRACTCadmium (Cd) is a common  environmental contaminant found in soils. Unlike other metals. Cd has no biological role, and is potentially toxic to microorganisms. The concentrations of cadmium in agricultural soils depend upon the amounts present in the parent rocks from which the soils form, the amounts added in the form of fertilizers and soil amendments, the amounts deposited onto soils from the atmosphere, and the amounts removed by harvested crops and by leaching. It...

EFFECT OF MEXICAN SUNFLOWER (Tithonia diversifolia) MULCH ON THE GROWTH AND YIELD OF MAIZE (Zea mays L.)

 ABSTRACTGreenhouse study was conducted at Federal University Oye- Ekiti, Department of Soil Science and Land Resources Management between June and August 2016 to compare the growth and yield of maize (Zea mays L.) using different rates of organic (Tithonia diversifolia) and Inorganic fertilizer. The effect of the amendments on the soil chemical properties was also evaluated. The experiment was laid out in a Completely Randomized Design with four replications. Tithonia diversifolia was a...

LAND EVALUATION STUDIES OF SOME SELECTED SOILS IN IKOLE SOUTH-WESTERN NIGERIA

 ABSTRACTSustainable use of soils requires in-depth knowledge of the formation, genesis and properties of soil. It is in view of this that some soils derived from granitic parent rock in Ikole, South- western Nigeria covering 33.7 hectares of land where mapped at a scale of 1:50,000 using a combination of convectional and remote sensing methods of soil survey. The objective was to generate detailed information on the properties of the soil for their sustainable agricultural use and ...

EFFECT OF LAND USE ON SOIL CARBON SEQUESTRATION IN SOILS OF THE DESERT MARGIN IN NIGERIA

 ABSTRACTExploring the impact of changes in land use in soils of the desert margin soils in Nigeria .This research is a key component to global climate change. Soil samples were taken in two vegetation zone Sahel and Sudan Savannah under four different land uses( Forest Area, Arable land, Fallow land and Grazing land) at a depth of 0-15cm. The locations under Sahel Savannah are Goronyo ,Gamawa and Minjibir while the site under Sudan Savannah are Hadeija and Ulela. A 5x4x3 factorial exper...

EFFECT OF DRIP IRRIGATION FREQUENCY AND MULCHING ON GROWTH AND YIELD OF OKRA (Abelmoschus esculentus L.)

ABSTRACTField experiment was conducted to evaluate the combined effects of drip irrigation frequency and different mulching materials on the growth and yield of okra (Abelmoschus esculentus L, Moench). The field experiment was 3 x 3 factorial using Randomized Complete Block Design. The factors were three irrigation intervals (daily, twice and thrice weekly) and three mulches (plastic, grasses and no mulch) and replicated four times. It was observed from the result that okra responded signific...

VARIATION IN BULK DENSITIES, ORGANIC CARBON AND WATER TRANSMISSION PROPERTIES UNDER FIVE DIFFERENT LAND USE TYPES IN IKOLE LGA OF EKITI STATE

 ABSTRACTManagement practices to adopt in improving the land productivity has always been a challenge. The arable land used for farm practical year students and the fadama used for raising vegetable.s and maize during the dry season are spoken about as not very productive. This is due to the gross lack of information on both the physical and chemical properties of the soils under the different land use types in the Federal University Oye-Ekiti. These land use types continued for over thr...

SOIL CARBON VARIABILITY ACROSS DIFFERENT AGRICULTURAL LAND USE TYPES IN IKOLE-EKITI, EKITI STATE.

 ABSTRACTThis research was conducted in Ikole-Ekiti to evaluate the effects of four land use types (forest plantation, arable land, fallow land and ranchland) and soil depth on soil organic carbon fractions namely; particulate organic carbon (POC), soil microbial biomass carbon (SMBC), total organic carbon (TOC) and water soluble organic carbon (WSOC). Soil samples were taken at 0-5, 5-10, I0-20 and 20-30 cm and 0-30 cm depths at each site using soil auger. The soil samples were analyzed...

THE EFFECT OF LAND USE ON THE PHYSICAL PROPERTIES AND ORGANIC CARBON OF SELECTED SOILS IN EKITI STATE

 ABSTRACTForest soils in Ekiti state western Nigeria are destroyed due to agricultural activities. Information about the effect of land use on soil is important for soil sustainability and productivity. A study was conducted to investigate changes that may occur in the soil organic carbon content (SOC) and some selected soil physical properties due to conversion of forest to arable land. Six locations that were selected for this purpose include; Ona-Ara (Ll), Asin (L2), Ijesa Isu (L3), O...

DEPTH AND TOPOGRAPHIC POSITION EFFECTS ON DISTRIBUTION OF SOIL ORGANIC CARBON IN RELATION TO AGRICULTURAL LAND USE AND MANAGEMENT IN IKOLE-EKITI, EKITI STATE.

AbstractAnthropogenic activities can destroy or drastically reduce the organic carbon contents of soils. This study was conducted to evaluate the effects of two land use management practices (arable land and oil palm land), soil depth and topography on soil organic carbon contents. The study was carried out in Ikole-Ekiti, Ekiti State, Nigeria. At each location, three topographic units were identified as upper slope, middle slope and lower slope at 50 m apart. A mini pit of 150 cm by 100 cm b...

Introduction and Participatoryevaluation of Exotic Cultivars of Pepper (Capsicum Spp.) among Small Holder Farmers in South- Western Nigeria

Abstract. Pepper (Capsicum spp.) production by farmers in southwestern Nigeria is limited by low yield due to poor genetic potentials of most cultivars available, use of poor quality seeds, disease infestation, and poor managment practices among others. To overcome the constraints, some varieties of pepper developed at Embrapa Brazil and NIHORT Nigeria, were introducedfollowed bytraining of 100 small scale farmers . Participatory field demonstrations of the improved varieties of pepper were c...

CONTRIBUTION OF ORGANIC MATTER TO THE CATION EXCHANGE CAPACITY OF SOME SOILS IN NIGERIA

ABSTRACTThe relative contributions of clay and organic matter to the cation exchange capacity of soils have been of great interest to many researchers. Organic matter. as a critical component of the soil. plays. significant roles which far exceed its quantitative distribution in the soil. It is regarded as the major contributor of CEC in weathered soils because of its several functional groups such as R-COO-. R-C=O. R-COH and R-SI I that deprotonate and leave net nega...


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