TY - BOOK AU - EL-Sherbeny,El-Hassanien TI - Study of the effect of depth of sowing, cultivation and nitrogen fertilizer placement on the growth and yield of zea mays PY - 1974/// KW - Corn KW - Growth KW - Fertilizers KW - Plowing KW - Sowing N1 - Thesis (M.S.)-- Ain Shams University, 1974; Includes bibliographical references (leaves 138-152); Microfiche; ASUNET; Ain Shams University; 3 microfiches : negative ER -