Status and Distribution of Micronutrients in Vertisol for Teff and Nitisol for Wheat Growing Area of West Showa Zone

Abstract

The study was conducted to evaluate soil micronutrients status and to investigate soil–plant nutrient relationships, in West Showa Zone, during 2018/2019 GC. A total of 30 samples randomly taken from each field of wheat and teff-growing fields were used for soil and plant sample collection. The extractable micronutrients were determined using DTPA soil test extraction procedure. The study shows that mean values micronutrients were in the order of Fe>Zn> Mn> Cu at both study area of soil types. Descriptive statistics was carried out to reveal the soil - plant relationships. The soil was low Fe (201.06ppm) at Welmera and medium (191.19ppm) at Adaberga and sufficient in Zn (76.8ppm at Welmera) and (76.29ppm) at Adaberga, while, Mn was found in deficient categories. The concentration of extractable micronutrient was found in the order of Fe>Zn>Mn>Cu. The concentration of Fe (318.29ppm), Zn (6.73ppm), and Mn (53.27ppm) were recorded from wheat tissue. High concentration of Fe (ppm) at both site and sufficient in Zn, Mn and Cu concentration was recorded from plant tissue of wheat. The soil will not require supplementary application of Fe nutrient. Since concentration of Fe were  above critical limits of arable land and a supplementary application of  Zn, Mn and Cu nutrient were not  strongly recommended to enhance the  soil fertility status and soil productivity of the area.

Keywords: concentration; micronutrient; nitisoil; vertisol; soil–plant relationship

DOI: 10.7176/JEES/11-12-01

Publication date: December 31^st 2021