Performance of three maize hybrids under spraying with zinc and nitrogen fertilization [electronic resource].

Includes references.

The study was carried out at the Agricultural Research and Experimental Center of the Faculty of Agriculture, Moshtohor, to determine the effect of foliar application of zinc sulphate (zero, 0.4%) and four nitrogen fertilizer levels(60, 90, 120 and 150 kg/fed) on growth, yield and yield components for three maize hybrids (T.W.C.310, S.C.122 and S.C.155 Yellow). The important results which were obtained from this study were as follows: The varietal differences were significant in all agronomic growth characters, ear characters, yield and yield components in combined analysis except ear diameter, number of kernels/row and lOO-kernel weight. S.C.122 gave the highest values of ear height, leaf area topmost ear, number of ears/plant, ear length, weight of kernels/ear, grain yield/plant and grain yield/fed as compared with T.W.C.310 and S.C. 155Y. Zinc application as spray resulted in significant increases in plant height. ear height, leaf area topmost ear, number of ears/plant. ear length, weight of kernels/ear, grain yield per plant and fed in the combined analysis. Applying of 120 or 150 kg N/fed caused increased significantly all growth characters. ear characters. yield and yield components in the combined analysis except number of rows/ear and shelling percentage more than 60 or 90 kg N/fed.

Summary in Arabic.

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