Biochemical studies on humic substances extracted from organic fertilizers
Afifi, Mohamed Mahmoud Ibrahim.
Biochemical studies on humic substances extracted from organic fertilizers [computer file]/ دراسات بيولوجية وكيميائية على المواد الهيومية المستخلصة من الأسمدة العضوية. Mohamed Mahmoud Ibrahim Afifi. - 2010. - Computer laser optical disk; 4 3/4 in.
Thesis (Ph.D.) -- Cairo University, 2010.
Includes bibliographical references (leaves121-139) .
Systems requirements: Adobe Reader.
Summary in Arabic.
Organic fertilizers.
humic substances.
Humic acid.
Biochemical studies on humic substances extracted from organic fertilizers [computer file]/ دراسات بيولوجية وكيميائية على المواد الهيومية المستخلصة من الأسمدة العضوية. Mohamed Mahmoud Ibrahim Afifi. - 2010. - Computer laser optical disk; 4 3/4 in.
Thesis (Ph.D.) -- Cairo University, 2010.
Includes bibliographical references (leaves121-139) .
Systems requirements: Adobe Reader.
Summary in Arabic.
Organic fertilizers.
humic substances.
Humic acid.