Effect of Application of Organic and Mineral Soil Amendments in a Continuous Cropping System for 10 Years on Chemical and Physical Properties of an Alfisol in Northern Guinea Savanna Zone: Experimental Investigation

In Nigeria’s northern Guinea savanna, intense maize production has been aided by demographics and a high reliance on maize as a main staple. To maintain soil productivity, intensive land cultivation necessitates the application of synthetic fertilisers and organic amendments on a regular basis. This study looked at the impact of 10 years of maize management strategies and inputs on soil quality. During the rain-fed farming seasons of 2006 and 2007, soil quality was assessed by measuring relevant physical and chemical indicators. Urea fertiliser, cow manure, Centrosema pascuorum, and Vigna unguiculata were used to produce 45 and 90 kg N ha-1, respectively. When compared to single urea, cow dung alone or in combination with sole urea fertiliser at a rate of 90 kg N ha-1 enhanced soil pH, organic carbon, and total nitrogen by 2%, 55%, and 17%, respectively. With the addition of cow dung, cation exchange capacity improved by 26 percent, while bulk density decreased by 18 percent and total porosity increased by 15 percent. Furthermore, over the sole urea treatment, moisture content at field capacity and permanent wilting point rose by 50% and 25%, respectively. Adoption of a balanced fertilisation that blends urea fertiliser with animal manure is recommended to restore or maintain soil fertility for optimal crop yields under comparative long-term soil productivity.

Author(S) Details

Nkechi Mary Eche
Department of Soil Science, Ahmadu Bello University, Zaria, Nigeria.

Emmanuel Nathan Oyema Iwuafor
Department of Soil Science, Ahmadu Bello University, Zaria, Nigeria.

Ishaku Yo’ila Amapu
Department of Soil Science, Ahmadu Bello University, Zaria, Nigeria.

Mary Ann Victoria Bruns
Department of Ecosystem Science and Management, Penn State University, USA.

View Book:- https://stm.bookpi.org/RPPSR-V3/article/view/4483

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