TY - BOOK AU - Atia,Zaher Mohamed Mohamed TI - Effect of some agronomic practices on yield of maize PY - 1988/// KW - Corn KW - Fertilizers KW - Nitrogen fertilizers KW - Leaves KW - Effect of trace elements on N1 - Thesis (Ph.D.) -- Zagazig University, 1988; Includes bibliographical references (leaves 153-171); Microfiche; Cairo, Egypt; ASUNET; 3 microfiche : negative ER -