409 articles
141
Research Article DOI: 10.67042/njss.2011.rgw69r2o

Nutrient Availability to Soybean (glycine Max (l) Merr.) from Ogun Phosphate Rock and Zinc Application in Some South-Western Nigerian Alfisols

Shokalu A. O*, Shokalu O, Adetunji M. T, Jamiu Oladipupo Azeez

The response of soybean (Glycine max (L) Merr.) to phosphorus from beneficiated Ogun phosphate rock (OPR) and zinc application (as ZnO; 80 % Zn) was studied in both pot and field experiments. Pot experiment was conducted with six surface soils collected from 0-20 cm depth of different land uses within Ogun State, Nigeria while the most representative of the locations was used for the field trial. ...

Aug, 2011 pp. 52-60 166 views 282 downloads
142
Research Article DOI: 10.67042/njss.2022.x1j7o3vq

Sustainability of Crop Production in Relation to Landscape Position and Soil Properties in Isiama, Abia State

Adesemuyi, Emmanuel Adeboye*, Iroha J. N, Chukwu, G. O.

The research was carried out at Isiama in Umuahia North Local Government Area of Abia State, Nigeria to examine the relationship between landscape positions and some selected soil properties. The soil units studied occupied different landscape positions and were identified as the summit (EJ-1), upper (EJ-2), middle (EJ-3) and foot (EJ-4) slope classes, on 3%, 7%, 2.5% and 1% slopes respectively. O...

Aug, 2022 pp. 53-58 177 views 253 downloads
143
Research Article DOI: 10.67042/njss.2022.zg8z5sg3

Geographic Information System (gis) Approach in Suitability Study of Asu River Group Soils of Old Ohaozara - Southeastern Nigeria for Rice Production

Obasi S. N.*, Obasi C. C.

This research work was carried out in Ivo Local Government Area, Old Ohaozara, Southern Ebonyi State, Southeastern Nigeria. Using Digital Elevation Model (DEM) which is a component Geographic Information System (GIS). Yearly precipitation and relative humidity scored 95% in all the investigated pedons which included Upland, Lowland, and Irrigated soils placing them in Suitability class 1 (S1) whil...

Apr, 2022 pp. 53-60 168 views 294 downloads
144
Research Article DOI: 10.67042/njss.2020.o60vbhhc

Comparison of the Characteristics of Soils of Isolated Forests and Adjacent Grasslands in Nsukka Area of Enugu State, Nigeria

Asadu Charles Livinus*, Odugu C.

The soils of isolated forests on hilltops and the surrounding grasslands in three locations at Ashor Hill, AttabaHill, and Umuowo Hill, all in Nsukka area were comparatively characterized. Two auger samples were collected (0-20 and 20-40cm) from each vegetation type per location giving a total of 12 auger samples while two profiles pit each were dug, described and sampled. In all, 24 samples were ...

Dec, 2020 pp. 53-61 183 views 270 downloads
145
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. 53-61 218 views 487 downloads
146
Research Article DOI: 10.67042/njss.2017.hmzan0rn

Influence of Velvet Bean Fallow and Compost Amendments on Amaranths (amaranthus Caudatus) Yield and Soil Properties in an Organic Cropping System

AdeOluwa O. O*, A. Bello

One of the major problems bedeviling crop production in many parts of the tropics is low soil fertility status. Thus, this report evaluates the effects of soil fertility improvement by velvet bean fallow and compost, on the yields of amaranth, as well as the post-harvest soil fertility. Green amaranth (Amaranthus caudatus) was used as the test crop. Six fertilizer treatments namely, Ibadan brewery...

Apr, 2017 pp. 53-62 185 views 231 downloads
147
Research Article DOI: 10.67042/njss.2025.bi9e89o6

Using Urea Intercalated Biochar and Organic Fertilizer as Soil Management Option Part 2: Its interactive Effects with Soil Moisture and Compaction on Soil Properties and Carbon Emission

Tijani F. O.*, Adewumi T. M., Abdulraman O. A., Oyebola O. K., Adebayo A. A., Amosun E. O., Oyedele D. J.

Soil response including carbon dioxide emission under the combination of compaction, fertilizer and soil moisture were investigated in a screenhouse. The factorial experiment consisted of two levels of moisture contents (50% and 70% field capacity, FC), three levels of compaction (0, 2 and 4 kg weights) and fertilizer treatments consisted of control, biochar, organic fertilizer + urea (FertC), ure...

Apr, 2025 pp. 54-67 193 views 278 downloads
148
Research Article DOI: 10.67042/njss.2019.rgars39x

Appraisal and Mapping of Soil Salinity and Sodicity Problems in Sector One of Watari Irrigation Scheme, Kano State.

Bashir A.Y*, Samndi M. A., Adam M.A, Terngu Kenneth Moji, Auwal M.

One of the main reasons for the loss of productive land in irrigated fields is the buildup of salinity in the soil. In the watari irrigation Scheme, no systematic ap-praisal and mapping have been made before within the sector. The study area was selected after a reconnaissance survey based on the farmer's complaint about the low production. Global positioning system (GPS) was used to record the co...

Apr, 2019 pp. 54-60 169 views 290 downloads
149
Research Article DOI: 10.67042/njss.2023.m29yi4w1

Effect of Land Use Types on Selected Physical and Chemical Properties of Ultsiols in Umudike, Southeastern Nigeria.

Akinmutimi A.L.*, Ogwuegbu T.U., Ernest U. Eteng

Field experiments were carried out in 2018 and 2019 at the National Root Crops Research Institute Eastern Farm, Umudike, Southeastern Nigeria to examine the different forms of potassium and their contributions toward potassium uptake under ginger production using ginger variety (UG 1) as the test crop. There were seven treatments consisting of sole and combinations of NPK15:15:15, poultry manure a...

Apr, 2023 pp. 55-65 103 views 65 downloads
150
Research Article DOI: 10.67042/njss.2021.wnzo4vyh

Variability of Micronutrient Status and Hazard Potential in Soils of Six Mapping Units Within Eastern Part of Kogi State, Nigeria

Maduabuchi Ekeoma Ukabiala, Uzoh I .N*, Kolo J., Peter I. Ezeaku, Akamigbo, F.O.R.

Micronutrient imbalance in some soils is a major challenge for cultivation of crops. Hence the need to assess their status and variability in agricultural soils. The aim of this research was to assess the micro-nutrient status, variability and hazard potential in some soils within eastern part of kogi state of Nigeria. Six mapping units, 2a, 17a, 19a, 19c, 21b and 22b from soil map of Nigeria, whi...

Aug, 2021 pp. 55-63 179 views 271 downloads