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Otobong B. Iren

Publications (4)

Soil Nutrient Dynamics and Yield of Cotton (Gossypium hirsutum L.) Following an Amendment with Cattle Manure

Otobong B. Iren & Yahya G. Aminu · International Journal of Plant & Soil Science · 2017

The availability of cattle manure in the study area needs to be properly utilized to benefit the environment and provide nutrients to crop. A field experiment was conducted during the wet season (June-October) of 2014 planting season at two locations within the Research Farm of t...

Open access Research Article 10.9734/IJPSS/2017/33124

Direct and Residual Effects of Animal Manures on Soil Properties and Yield Components of Pepper (Capsicum annum L.) in an Ultisol of Southeast Nigeria

Otobong B. Iren, Ime D. Uwah & V. M. Vincent · Asian Research Journal of Agriculture · 2017

One of the ways of increasing soil nutrients and crop yield is by applying fertilizer which could be from inorganic or organic sources. Pot experiment was conducted at the screen house of the Teaching and Research Farm of Faculty of Agriculture, Akwa Ibom State University, Nigeri...

Open access Research Article 10.9734/ARJA/2017/31907

Effects of Neem-Based Organic Fertilizer, NPK and Their Combinations on Soil Properties and Growth of Okra (Abelmoschus esculentus) in a Degraded Ultisol of Calabar, Nigeria

E. O. Ayito, Otobong B. Iren & Kingsley John · International Journal of Plant & Soil Science · 2018

A field experiment was conducted at the University of Calabar Teaching and Research Farm to evaluate the effects of neem-based organic fertilizer, NPK and their combinations on soil chemical properties and growth of okra (Abelmoschus esculentus) on a degraded Ultisol Calabar. The...

Open access Research Article 10.9734/IJPSS/2018/43027

Optimizing Nitrogen Rates and Plant Density for Cotton Cultivars (Gossypium spp.) in the Nigerian Savanna

Lawrence I. Omadewu, Otobong B. Iren & Anthony E. Eneji · Asian Journal of Soil Science and Plant Nutrition · 2017

Cotton production in Nigeria has been severely limited by low or blanket nutrient (especially nitrogen, N) input and poor crop management, involving use of low yielding varieties and sub-optimal plant spacing. Field experiment was conducted during the wet season (June-October) of...

Open access Research Article 10.9734/AJSSPN/2017/35329