Articles

Browse our published research articles

403 articles
21
Research Article DOI: 10.67042/njss.2018.q8f8gy8m

Fertility Status of Soils of the Two Major Cocoa Producing Local Government Areas (etung and Ikom) in Cross River State, Nigeria

Attoe E. E.*

Fertility studies were carried out on the status of Basalt soil of Etung and Ikom Local Government Areas of Cross River State for Cocoa production. Stratified – random sampling technique was used in taking soil samples at 0-25cm and 25-50cm depth at different locations in Etung and Ikom Local Government Areas of Cross River State. Analytical results indicated that the soils in these areas are clay...

Aug, 2018 pp. 53-61 204 views 295 downloads
22
Research Article DOI: 10.67042/njss.2017.h3lbgqp9

Variations in Soil Properties as Influenced by Land Use and Soil Depth in a Derived Savannah Ecology of Southwestern Nigeria.

Denton O.*, Ogunkunle, A, Fademi I.

Soil physical and chemical properties are strongly influenced by soil management systems and changes in land use. The study was carried out in Iseyin LGA of Oyo state which is a derived savannah zone under four different land use types’ arable, grazing, fallow and tree crops. A total of twenty four soil samples were collected at two depths i.e. 0-15cm and 15-30cm, from the study area using the clu...

Apr, 2017 pp. 345-357 204 views 47 downloads
23
Research Article DOI: 10.67042/njss.2021.yq0enep0

Influence of Land Use on Soil Physiochemical Properties in Semi - Humid Nsukka Area of Southeast - Ern Nigeria

Umeobi E. C*, , Ezeaku, P.I., Umeugokwe C. P, Ezeaku, V. I

The influence of four land uses (cultivated arable land, grassland, oil palm planta- tion and rubber plantation) on physical and chemical properties of coarse- textured acid soils was assessed in the semi-humid Nsukka area. Soil auger and core samples were used to achieve surface sampling at the depth intervals of 0-20 and 20-40cm in each land use type. Four diagnostic horizons were identified and...

Dec, 2021 pp. 6-17 203 views 276 downloads
24
Research Article DOI: 10.67042/njss.2016.vcz1lyyd

Characterization of Biochar Produced from Diverse Feedstocks Used as Amendment on Acidic Ultisols at Umudike, Abia State.

Onwuka, M.I.*, Nwangwu B.C

Biochar is used as a soil amendment to improve soil nutrients for crop production. The nutrient contents of biochar depend on the type of feedstock, pyrolysis types and temperature among others. In this study, it was hypothesized that biochar produced from different feedstock at the same temperature will have different effects on soil properties. To verify this, a pot experiement was set up at the...

May, 2016 pp. 254-264 202 views 239 downloads
25
Research Article DOI: 10.67042/njss.2013.obbtniap

Effect of Organic Manure Source and Time of Application on the Field Performance and Nutrient N Uptake of Ginger in the Guinea Savanna

Nwaogu E.N.*, Nwauzor E.C, Mohammed M.

The influence of organic manure from different sources applied at different time intervals before planting on the rhizome yield and nutrient N uptake of ginger was evaluated in 2009 and 2010 cropping seasons at the National Root crops Research Institute, Umudike. Treatments consisted of organic manure from three sources (Poultry manure, Rice mill waste and Cow dung manure) factorially combined wit...

Apr, 2013 pp. 120-123 201 views 338 downloads
26
Research Article DOI: 10.67042/njss.2025.ciwm5d59

Geostatistical investigation and GIS-based spatial distribution of some micronutrients in Wukari soils, Taraba State, Nigeria

Waizah, Y.*, Adashu Tanko Gani

Mapping soil fertility is important for site-specific nutrient management, it gives an insight into soil nutrient content, which is crucial for land use planning, fertilizer recommendations, and sustainable management of soil resources. Micronutrient deficiency in the soil is a serious limitation for crop production. Evaluation and mapping the soil micronutrients of a particular area can be a poss...

Apr, 2025 pp. 11-16 199 views 272 downloads
27
Research Article DOI: 10.67042/njss.2021.lhvp8d6k

Quantification of Soil and Nutrient Loss Due to Yam Harvesting: a Case Study in Two Local Government Areas in Benue State, Nigeria

Victor Manna Samson*, Kumawuese Mercy Ityavnongo

Soil loss due to crop harvesting is a recognized erosion process which has significantly contributed to soil degradation. Despite its significance, soil loss due to crop harvesting has been given little attention in Benue state and Nigeria at large. This is evident in the paucity of information on soil loss due to crop harvesting in Nigeria. Therefore a field experiment was conducted to quantify s...

Dec, 2021 pp. 42-47 199 views 243 downloads
28
Research Article DOI: 10.67042/njss.2013.3c9zyjh7

Characterization, Classification and Agricultural Potential of Some Selected Soils of Kwara State, Nigeria

OLANIYAN J. O.*

The major soils of Kwara State were identified using the FDALR- produced soil map of Nigeria. These soils were mapped. Soil samples were taken from pedogenic horizons and analysed in the laboratory for further characterization and classification. The soils developed on basement complex rocks are gravely while those developed on sandstone are more sandy and free of coarse fragments. The soils are g...

Apr, 2013 pp. 94-101 199 views 305 downloads
29
Research Article DOI: 10.67042/njss.2012.5yex4pwv

Growth and Yield of Okra and Tomato as Affected by Pig Dung and Other Manures Issue for Economic Consideration in Benue State

ABEL OLATUNJI ODEYEMI*, V. U. Oboh

Pot experiments were conducted to compare the effects of pig dung and other sources of manure on the production of okra (Abelmoschus esculentum) and Tomato (Lycopersicon esculentum mill) at University of Agriculture, Makurdi. A survey was also conducted in Makurdi metropolis to determine the comparative availability and cost of pig dung and other manures. Three levels of organic manures were used,...

Apr, 2012 pp. 105-110 199 views 54 downloads
30
Research Article DOI: 10.67042/njss.2013.li1b2tw2

Evaluation of Nutrient Uptake Under Higher Density Planting of Coffee in Derived Savanna Zone of Nigeria

Famaye, A. O.*, Akanbi O. S.O., Ayegboyin K. O., Adejobi K.B, Idrisu M., Adeosun S.A, Ugioro O, Nduka B. A.

This study was conducted at the Cocoa Research Institute of Nigeria (CRIN), Uhonmora sub-Station in Derived savannah zone of Edo State, Nigeria in 2007 to evaluate the nutrient uptake of coffee at different density of planting. Treatments comprising of four spacing ( 3.0 m x 3.0 m, 2.5 m x 2.5 m, 2.0 m, x 2.0 m and 1.5 m x 1.5 m) with plant populations of 1111, 1600, 2500 and 4444 plants/ha respec...

Apr, 2013 pp. 17-21 198 views 303 downloads