Articles

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409 articles
281
Research Article DOI: 10.67042/njss.2022.85yuw72l

Evaluation of Farmyard Manure and Urea on Growth, Yield and Cost Benefits of Rice (zea Mays L) (oryza Sativa L) in Southern Guinea Savanna, Nigeria

Olowoake A.A.*, Afe, A.I., Ojo, J.A, Yusuf, T. M., Subair, S.K.

Chemical fertilizers are become more and more expensive, making them unaffordable for smallholder farmers in Nigeria. This study compared the combined effects of farmyard manure and inorganic fertilizers (prilled and granular urea) on growth, yield and cost benefits of rice. Field experiments were carried out in two locations (Malete and Shao) Kwara State, Nigeria during 2018 and 2019 cropping sea...

Aug, 2022 pp. 117-124 187 views 249 downloads
282
Research Article DOI: 10.67042/njss.2022.b80m82yw

Application of Semivariogram Model to Quantify Spatial Variability of Soil Properties in a Forested Tropical Soil.

Obidike-Ugwu E. O.*, Ogunwole J. O., Odunze Azubuike Chidowe, Nwafor O. E., Ariwaodo J. O.

Accurate evaluation of spatial variability of soil properties is one of the key components of ecosystem management. The conventional analytical and semivariogram methods were used to analyze data to quantify the potential of the semi-variogram model for measuring soil properties and their spatial variability in a tropical forest ecosystem. A total of 100 soil samples were collected through a 300 m...

Apr, 2022 pp. 117-123 205 views 180 downloads
283
Research Article DOI: 10.67042/njss.2020.e6v1qv5a

Influence of Tillage - Seedbed and Manure - Npk - Micronutrient Management Options on Selected Soil Properties of Sandy - Loam Ultisols Evaluated Using Sweet Potato

Sunday Ewele OBALUM*, , Ogumba P.O., Uzoh I .N

This study assessed the effects of tillage and nutrient management practices on selected soil properties of degraded coarse-textured Ultisols and responses of sweet potato in Nsukka, southeastern Nigeria. It involved three tillage-seedbed types viz zero-tilled flatbed (ZT-FB), conventionally tilled-flatbed (CT-FB) and conventionally tilled tie-ridge (CT-TR), each with seven soil fertilizer amendme...

Dec, 2020 pp. 117-125 177 views 256 downloads
284
Research Article DOI: 10.67042/njss.2014.505ohe2x

Soil Fertility Assessment of a Shea (vitellariaparadoxa C.f. Gaertn ) Field at Bida, Niger State

OSAYANDE P.E.*, P.O. Oviasogie, AWANLEMHEN B.E., Orhue E. R.

Knowledge of the fertility status of soils is basic to managing them for optimum crop production. Fertility status of a cultivated Shea (Vitellaria paradoxa C.F. Gaertn) field was assessed at Bida, Niger state. Soil samples were collected using auger and core methods, air-dried, sieved with a 2- mm sieve and analyzed for physical and chemical properties in the laboratory using standard methods. Th...

Apr, 2014 pp. 117-124 166 views 292 downloads
285
Research Article DOI: 10.67042/njss.2021.8mlk36gn

Dynamics in Physico–chemical Properties of Soils Under Oil Palm Plantations of Different Ages

Olufemi Adewale Osinuga*

This research investigated the changes in the physicochemical properties of soils under oil palm plantations of different ages. Soil surface (0-20 cm) and subsurface (20-40 cm) samples have been obtained from various ages of oil palm plantations (0-5, 5-10, 10-15 and, 15-20 years). Two distinct samples were taken on the same farm, under alleys and heaped pruned fronds. Soil samples used as a stand...

Aug, 2021 pp. 118-124 185 views 298 downloads
286
Research Article DOI: 10.67042/njss.2021.phe46r5d

Agronomic Potentials of Boiler Ash Derived from Oil Palm Wastes as Fertilizer, Soil Amendment, and Liming Materials

Ezema Raymond Anikwe*, Asadu Charles Livinus, N. A. Onunka, Ifejimalu, A. C

One potential problem with recycling power plant ashes is its variability both from fuel to fuel and within a certain fuel-type. This study obtained information on the main components of ashes derived from burning oil palm mill wastes in boilers for energy generation to obtain reference data for the development of its utility possibilities with particular emphasis on use as fertilizer, soil amendm...

Apr, 2021 pp. 118-123 213 views 350 downloads
287
Research Article DOI: 10.67042/njss.2011.2pkoa65r

Agronomic and Economic Evaluation of Different Conservation and Conventional Farming Practices on a Sandy Clay Loam Soil at Minna, Nigeria

Odofin A. J.*, Kaure I. G., Tanko L., Eneje R. C

Field trials were carried out in 2008 and 2009 cropping seasons to compare manual ridging (control) with ten conservation and conventional farming practices. The zero tillage treatments recorded significantly higher penetration resistance than manual ridging in both years. In terms of soil moisture content, seedling emergence, plant height, grain yield and stover + grain yield, however, the contro...

Aug, 2011 pp. 118-128 175 views 286 downloads
288
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. 120-123 220 views 354 downloads
289
Research Article DOI: 10.67042/njss.2019.txkd9hov

Comparative Potential Effects of Biochar, Compost and Inorganic Fertilizer on Major Nutrient Ions Mobility and Stability in Screen - House Irrigated Maize in the Drier Savannas of Nigeria

Dawaki M. U.*, Aliyu Abdulqadir, Abdulrahman B. L.

A screen-house experiment was conducted in the dry season of 2017 to evaluate the potential effect of organic and inorganic soil amendments on the mobility and stability of significant plant nutrient ions. 5 t ha-1 compost or Biochar were applied to pot-grown maize to compare their effect with NPK at the rate of 120: 60: 60 kg ha-1 and a control. Soil solution was sampled with lysimeters at varyin...

Aug, 2019 pp. 122-132 193 views 284 downloads
290
Research Article DOI: 10.67042/njss.2021.r6xtvthi

Biochar and Composted Poultry Manure Causes on Immobilization and Migration of Heavy Metals in Maize Plants Beside a Mining Site.

Ikwuakonam Okoro*, Nwachukwu O. I.

Mining sites in Amagu-Enyigba Ebonyi state Nigeria have deposits of heavy metals especially lead and zinc. Most crops grown in such sites are always hyperaccumulators of these metals. It is against this backdrop that the present study was conducted. The study aimed to ascertain the effect of biochar and composted poultry manure in immobilizing metals in the soil and subsequent reduction in maize u...

Dec, 2021 pp. 123-130 157 views 262 downloads