Mineral Composition of Grain and Straw of Tef (Eragrostis tef) Grown on Vertisols

Abstract

አህፅሮት
በኢትዮጵያ ጤፍ ሇሰው ምግብነት እና ሇእንስሳት መኖ ጥቅም ላይ ይውላል፡፡ በመካከሇኛው እና ሰሜን ኢትዮጵያ ጤፍ በሚመረትባቸው አካባቢዎች የጤፍ እህል (ቅንጣት) እና ገሇባ ናሙና ተወስዶ የኬሚካል ምርመራ በኣውስትራልያ ተዯርጓል፡፡ ናሙና በተወሰዯባቸው በሶስቱም አካባቢዎች የተሇያየ የኬሚካላዊ ንጥረ ነገር ክምችት እንዳሇ ተረጋግጧል፡፡ የአየር ንብረት እና የኣፈር ንጥረ ነገር ክምችት መሇያየት ሇውጤቱ መሇያያት እንዯምክንያት መጥቀስ ይቻላል፡፡ ይህም ሆኖ ናሙና በተወሰዯባቸው ሶስቱም ኣካባቢዎች የተገኘው ውጤት ከሞላ ጎዯል ተመሳሳይነት ኣሇው ማሇት ይቻላል፡፡ ይህ ጥናት የጤፍ ቅንጣት እና ገሇባ የኬሚካላዊ ንጥረ-ነገር ክምችት ሇተመራማሪዎች እና ሞያተኞች እንዯ መሰረታዊ መረጃ ያገሇግላል፡፡ የተሻሻሇ እና ከፍተኛ የንጥረ ነገር ክምችት ያሇው የጤፍ ምርት እንዲኖረን ተጨማሪ ጥናቶች በተሇያዩ የጤፍ ዝርያዎች እና የኣፈር ኣይነቶች ሊሞከር ይገባል፡፡

Abstract
Tef grain and straw are important food and feed resources, respectively, in Ethiopia. Chemical analysis was carried out on tef grain and straw grown on Vertisols of three areas of the central and northern districts in Ethiopia in 2008. The grain and straw samples were analyzed from nitric acid- hydrogen peroxide digest using Inductively Coupled Plasma Atomic Emission Spectrometry (ICPAES) in Australia. Variability among districts in trends and concentrations of different elements of tef grain and straw were observed. The variability could be due to the differences in agro-ecology and soil mineral composition in the different districts. Even though there were some inconsistencies, the chemical composition of tef grown in different agro-ecologies was similar. The current study serves to give basic information on the elemental concentration of tef grain and straw to researchers and professionals in tef mineral element composition and nutrition. Additional studies may require across soil types and using different varieties of tef to strengthen the quality of tef in terms of nutrient composition and to give indications for further research on nutrients that are deficient in soils and plants.