EFFECT OF BOTH SOIL AND FOLIAR APPLICATION OF NPK ON RESPONSE OF CORN VARIETIES .

Document Type : Original Article

Authors

1 Agronomy Department , Faculty Of Agriculture, Cairo University

2 Department of Natural Resources , Institute of African Research and Studies

3 Head of Department of Corn Researches (ARC)

Abstract

A field experiment was carried out at Gemiza (ARS), during 2012, 2013. The aim of the study was to evaluate the performance of S.C.167 and T.W.C 253 maize under the use of different rates of NPK, fertilizer and methodes of application soil application  and foliar one. All the agriculture treatments were used as usual. A split split  plot design was used. five traits were studied. Such traits were  no. of kernels /rows, no. of rows /ear ,no. of kernels / ear, Grains weight /ear and  yield/fed. The obtained results could be summarized as follows:
 -  Main effects significantly affected most studied traits.
 - The most recommended independent factor treatments for superior grain yield/fed were SC.167 × SA 60% NPK ×SF40%  NPK or T.W.G. SA 100% NPK × SF 40% NPK .
-  The first order interactions among the levels of the three studied factors seemed to be the most acceptable combinations for excellent grain yield/fed.
-  Significancey was completely absent as respect to second order interaction with all studied trait. Except only grain yield / fed. was significant .But the superior combination SC167 × SA 100% NPK × FA 80% NPK or T.W.C 353 ×SA 80% NPK × FA 40 % NPK .