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
Highlights
Micronutrients are important elements that are assimilated by plans in trace amount (Mulugeta et al, 2005)
The major crops that are commonly grown on Vertisols in Ethiopia are teff
Summary and conclusion In terms of soil fertility, one cannot talk about the complete fertility of soils in the absence of micronutrients
Summary
Micronutrients are important elements that are assimilated by plans in trace amount (Mulugeta et al, 2005). Increased in crop yields from application of micronutrient nutrient source occurred in many parts of the world (Fageria et al, 2011). They further stated that, there is growing awareness that micronutrient deficiencies may limit crop yields even though plants require exceedingly small amounts. Soil and tissue nutrient concentrations are expected to be positively correlated for most nutrients (Fageria et al, 2011) Factors such as soil nutrient level, soil conditions, genotype or climate influence the required nutrient concentrations in plants (Taye and Yifru, 2010, EthioSIS, 2015). The objective of this study was, to evaluate soil and plant nutrient status and investigate soil–plant nutrient relationships on different soil types
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