O. U. Nwanja

Effect of Different Organic and Inorganic Inputs on Growth and Yield of Soybean (Glycine max) in Southeastern Nigeria

D. E. O. Azu, S. I. Ijearu, O. U. Nwanja & P. E. Nweke · Asian Soil Research Journal · 2022

This study was carried out at the teaching and Research farm, Department of Horticulture and Landscape Technology, Akanu Ibiam Federal Polytechnic, Unwana, to investigate the integrated effects of organics (lime, Inoculum) and mineral fertilizers, (single superphosphate and muria...

Open access Research Article 10.9734/asrj/2022/v6i3112

Rice Husk Dust and NPK Improve Soil Chemical Properties and Growth Response of Jatropha

E. O. Azu Donatus, B. A. Essien, O. U. Nwanja & P. E. Nweke · International Journal of Plant & Soil Science · 2021

The present study investigated the combined effect of rice husk dust (RHD) (0.1.2.3.4 and 5 ton ha-1) and NPK 10:10:10 fertilizer (0, 1, 2, 3, 4 and 5 ton ha-1) arranged factorially in Randomized Complete Block Design(RCBD)on selected soil fertility indices (pH, organic carbon, o...

Open access Research Article 10.9734/ijpss/2021/v33i230410

Effect of Dried Algae and N Fertilizers to Soil Chemical Properties and the Yield of Amaranthus (Amaranthus cruentus) on Ultisols Southeastern Nigeria

E. O. Azu, Donatus, V. E. Osodeke & O. U. Nwanja · Asian Journal of Soil Science and Plant Nutrition · 2017

Organic manure plays an important role in improving the fertility of Ultisols. A pot experiment to investigate the effect of dried algae and N fertilizer on the chemical properties and the yield of Amaranthus on Ultisol was conducted from March to June, 2017 in the Green House of...

Open access Research Article 10.9734/AJSSPN/2017/37538