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Status and distribution of available micronutrients along a | 15946
International Research Journals

International Research Journal of Agricultural Science and Soil Science

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Status and distribution of available micronutrients along a toposequence at Gubi Bauchi North Eastern Nigeria

Abstract

Biwe Ephraim R

A study was carried out to determine the status and distribution of extractable zinc (Zn), cupper (Cu), iron (Fe) and Manganese (Mn) along a toposequence at Gubi, Bauchi Nigeria. Four profile pits were dug along the toposequence at the upper slope, middle slope, lower slope and valley bottom positions and soil samples taken from identified horizons were subjected to laboratory analysis. The results show that the mean values were 0.26, 0.36, 44.75 and 47.50mg/kg for Zn, Cu, Fe and Mn respectively. Zn and Cu were generally “low” to “medium” in all the horizons of the pedons, and also below the critical limits for arable crop production. The crops will benefit from supplementary application of these micronutrients for maximum productivity. Fe and Mn values were “high” and above the critical limits for arable crop production in all the horizons of the pedons. The soils will not require supplementary application of Fe and Mn.

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