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Research Article |

Assessment of Nutrient Availability and Competition Between Striga Hermonthica and Maize Plant

One of the major challenges in maize production across the globe is that of infestation by striga, a parasitic plant resulting in intense competition for mineral resources. And eventual decline in overall maize yield. This study assesses the extent of competition for nutrients by maize plant inter-planted with Striga hermonthica under green-house conditions using the variables: Maize planted alone (M), maize inter-planted with striga (M/S), maize planted alone with fertilizer application (MF), maize inter-planted with striga and fertilizer applied (M/SF), striga only (S) and striga with fertilizer (SF). The growth profile obtained was in the order: MF > M > M/SF > M/S > SF > S implying a significant effect on maize growth by striga. However, the distribution of proximate constituents’ showed that moisture, ash, crude protein, lipid, and fibre content is more in striga root compared to the shoot likewise, the moisture, ash, and lipid content of the root supersede the shoot in maize plant inter-planted with striga. Then, the moisture, ash, and carbohydrate content of striga root and shoot surpass that of the maize inter-planted with striga. Soil to plant Bio-Concentration Factor of phosphorus was in the order: S > M > M/S, for potassium, was S > M /S > M, while magnesium: S > M > M/S then manganese: S = M = M/S. Based on the highest value of regression coefficient R2 of the linearized plot of the diverse kinetic models, the pseudo second order kinetics model dominates the uptake rate of K, Mg and Mn by maize plant while the uptake of P, K, and Mg by striga conforms to elovic kinetic model. The mean sorption capacity K of minerals based on Freundlich-like equation reveals higher uptake capacity by striga plant when compared to maize plant which supports the reason why striga competes favorably with maize for mineral with a significant effect in lowering maize yield. Given the higher sorption capacity of Striga hermonthica, further studies are suggested on fortifying maize to compete favorably with striga plant.

Striga hermonthica, Proximate Compositions, Mineral Elements, Uptake Capacity and Kinetics

Emmanuel Amuntse Yerima, Silas Ngandi Johnson. (2023). Assessment of Nutrient Availability and Competition Between Striga Hermonthica and Maize Plant. International Journal of Environmental Monitoring and Analysis, 11(5), 106-113.

Copyright © 2023 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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