Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52335#.VJDhT8nQrzE Author(s) Gulzhanar Shaihina 1* , Abilzhan Husainov 2 , Guldana Seitova 3 , Gaziza Kaseinova 4 , Aida Mausumbayeva 5 Affiliation(s) 1 “Kokshe” Academy, Kokshetau City, The Republic of Kazakhstan . 2 Environment and Stable Development Research Institute, “Kokshe” Academy, Kokshetau City, The Republic of Kazakhstan . 3 Agricultural Chemistry and Soil Sciences at Technical Disciplines Department, “Kokshe” Academy, Kokshetau City, The Republic of Kazakhstan . 4 Technology and Equipment at Technical Disciplines Department, Zhansugurov State University, Taldykurgan City, The Republic of Kazakhstan . 5 Natural Science Disciplines, Zhansugurov State University, Taldykurgan City, The Republic of ...
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