Articles

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401 articles
101
Research Article DOI: 10.67042/njss.2015.xwitvsgo

Heavy Metal Status in Soils and Amaranthus Cruentus from Farmland on the Bank of Orogodo River, Agbor, Delta State, Nigeria.

Orhue, Ehi Robert*, Edosa, Ifeyinwa Valerie1, Iyagbaye, Louis2

This study investigated the status of heavy metals in the soil and Amaranthus cruentus on the farmland at bank of Orogodo River at Agbor, Delta State, Nigeria. Soil and plant samples were collected at an area of 8000 m 2 . The soil samples were collected at a depth of 0-15 cm, 15-30 cm and 30-45 cm while the plant samples were also sampled along with the sampling of the soil in December 2013. Both...

Apr, 2015 pp. 38-44 556 views 703 downloads
102
Research Article DOI: 10.67042/njss.2013.l4e166lx

Field Evaluation of Biowish - Crop Organic Fertilizer in Lowland Rice Production

Bakare S.O*, Alhassan G., Ekaette J.E, Ukwungwu, M.N

A Randomized Complete Block Design experiment with three replicates was carried out at the lowland experimental site of the National Cereals Research Institute, Badeggi in the 2011 and 2012 wet seasons. National Cereals Research Institute, Badeggi is located at Lat. 09o 45’N; Long. 06o 7’E. Three rates of Biowish-Crop (5, 4 and 3kg/ha) were combined with inorganic fertilizer at either recommended,...

Aug, 2013 pp. 38-43 419 views 655 downloads
103
Research Article DOI: 10.67042/njss.2017.xf9qksm0

Status of Available Micronutrients in Soil Profiles of Different Parent Materials in Imo State, Southeastern, Nigeria

Okoli N. H*, Bethel Ugochukwu Uzoho, Onweremadu E. U, AHUKAEMERE C.M., Osisi A. F, Aliba E.O.

The status of available Zn, Cu, Ni and Fe was studied in four representative soil profiles of different parent materials (Coastal Plain Sands, Alluvium, Falsebedded Sandstones and Imo Clay Shale) in Imo State, Southeastern Nigeria. Sample collection was guided by horizon differentiation. Available Zn, Cu, Ni and Fe were evaluated using double acid extraction method. Variation in distribution of av...

Apr, 2017 pp. 40-52 547 views 657 downloads
104
Research Article DOI: 10.67042/njss.2021.uaxvm43v

Effect of Time of Seed - Bed Preparation on Soil Properties and Performance of Water Yam in Owerri Southeast, Nigeria

Ekpe, I I*, Oti, N.N, Ishiusah O. W,, Egboka, N.T, Nwankwo V.C., Iheka, W. C, Aguwa, O U, Orji A.

Field experiment was conducted between the months of February and November, 2016 to evaluate the effect of age of seed-bed preparation on soil properties and performance of water yam in Owerri, southeastern Nigeria. Treatments consisted of four time of seed-bed preparations namely 0, 3, 6, and 9 weeks intervals, laid out in a randomized complete block design (RCBD) with three replications. Se- lec...

Aug, 2021 pp. 41-50 512 views 719 downloads
105
Research Article DOI: 10.67042/njss.2016.jxs961ip

Responses of Maize Growth and Grain Yield to Different Sources and Time of Application of Nitrogen Fertilizer

Omisore J. K.*, Y. A. Abayomi

Soil fertility decline has been identified as one of the major biophysical constraints affecting agriculture in the sub Saharan Africa, including Nigeria. Even though, the use of chemical fertilizer is the most convenient way of improving soil fertility, the high cost and poor distribution of chemical fertilizer have made the commodity inaccessible to resource poor farmers. Consequently, there is ...

Aug, 2016 pp. 41-51 469 views 571 downloads
106
Research Article DOI: 10.67042/njss.2022.xfj542dq

Soil Fertility and Productivity Test Analysis of Selected Soils of Evite Otu, Aguleri, Anambra East Lga, Anambra State

Adesemuyi E.A*, Okonkwo E I, Nwaoba W. O, Mabel Ifeoma Onwuka

The study was carried out to assess the fertility and productivity potentials of selected soils of Evite Otu, Aguleri in Anambra East LGA of Anambra State, with a view to making adequate management practices for sustainable crop production in the area. Three mapping units were delineated using the transect method of soil survey. The properties of the surface soil of the units were examined for fer...

Aug, 2022 pp. 42-52 544 views 703 downloads
107
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. 42-47 631 views 637 downloads
108
Research Article DOI: 10.67042/njss.2020.liwgkocg

The Impact of Land Use Types and Acidity Indices on Soil Humic Fractions Quantities at Umudike, Tropical Rainforest, Nigeria

Mabel Ifeoma Onwuka*, Okonta, U, Asobia, P. C.

Natural humic fractions deposited in the soil are most times sources of industrial humic substances use for crop production. However, the quantities of the humic substances, which are components of soil organic matter, are affected by lots of factors and processes, including land- use. The effects of different land- use and soil acidi0ty indices on the quantity of soil humic fractions at Umudike, ...

Dec, 2020 pp. 42-52 571 views 643 downloads
109
Research Article DOI: 10.67042/njss.2020.9n60i10d

Effects of Climatic Variations on Leaf Litter Production in A. Floribunda Agroforestry System in South - East Nigeria

Keyejo, A.O, Okpara, D.A., Onyeonagu, C.C., Eteng, E.U*

Field experiment was conducted between 2016 and 2018 at Forestry Research Institute of Nigeria (FRIN), Humid Forest Research Station, Umuahia, South-east Nigeria, to study litter production and climatic influence in Allanblackia floribun- da (oliv) agroforestry system. The experiment was laid out in a randomized com- plete block design (RCBD) with three replications. Litter trays were used for mon...

Aug, 2020 pp. 42-48 538 views 686 downloads
110
Research Article DOI: 10.67042/njss.2020.0jyronh4

Land Suitability Evaluation for Maize Production and Taxonomic Classification of Soils Overlying Undifferentiated Basement Complex in Northeast Nigeria

Kefas, P. K*, Maigida, E, , Ezeaku, P.I., Ofem, K.I, Akwoga, J.A, Ezeaku P

Soil characterization, classification and evaluation provide useful information for the understanding of its different facets, hence their potentials and limitations for crop production. Such information is lacking in the general area of Kona-Jalingo in Taraba State, Nigeria, hence the study to determine the macro-morphological, physical and chemical properties of the soils, classify them up to th...

Apr, 2020 pp. 42-52 483 views 682 downloads