Onunwa A.o.

Department. of Soil Science & Land Resources Management, Nnamdi Azikiwe University, Awka, Nigeria

ao.onunwa@unizik.edu.ng

2 Publications

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Publications 2

Research Article Vol. 31, Issue 2

Evaluation of Soils on a Toposequence Formed from the Coastal Plain Sands of the Imo River Basin, Southeastern Nigeria

Madueke, C.O^*, Nnabude, P.C., Okore, I.K, Onunwa A.O., Madueke, E.C, Okafor, M.J, Nnabuihe, E, Nwosu, T.V

Due to the increasing land degradation in southeastern Nigeria – with particular reference to the ubiquitous gully network in the region – selected soils formed from the Coastal Plain Sands of the Imo River Basin were evaluated and char- acterized to determine their potentials and capabilities. , Three profile pits were consequently dug on the uppe...

Aug, 2021 Vol. 31, Issue 2 275 views 601 downloads

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Research Article Vol. 28, Issue 2

Tillage and Residual Effect of Some Organic Amendments on Aggregate Associated Soil Carbon of an Ultisol, Growth and Yield of Maize and Cowpea Intercrop

Onunwa A.O.^*, Igwe C. A, Mbonu O. A

associated soil carbon (C WSA) and yield of maize and cowpea intercrop in an Ultisol, Southeastern Nigeria. A land area of 0.1125 ha was planted to sole cowpea, sole maize and maize-cowpea intercrop using minimum tillage (NT) and conventional tillage (CT) with poultry droppings (PD), pig waste (PW), and Cassava peels (CP) as amendments at t...

Dec, 2018 Vol. 28, Issue 2 260 views 494 downloads

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