Effect of Planting Date and Fertilizer Application on Yield of Wheat under No till System

Abstract

A 2-yr field study was carried out in the Research and Experimental Center of Faculty of Agriculture at Moshtohor, Benha University, Egypt, during 2006/2007 and 2007/2008 seasons. The aim of this study was to study the effect of 3 planting dates (PD) (November 1, November 15 and November 30), 2 bio- fertilization treatments (BF) (with and with out) and 4 mineral NP fertilizer levels (N P , N P , N P and N P kg/fed.) 0 0 30 15 60 30 90 45 on yield, yield components, grain protein content (GPC) and grain NPK uptake of wheat cv. Sakha 93. Results showed that the highest values of number of tillers and spikes/m , 1000- kernel weight, grain yield/fed and grain 2 NPK uptake were obtained when wheat was sown on mid-November. Early or delayed planting significantly reduced forenamed traits. Increasing fertilizer level up to N P kg/fed significantly increased yield and yield 90 45 components compared with lower fertilizer levels and the control. Bacteria inoculation significantly increased number of spikes/m , plant height, spike length,1000- kernel weight, grain yield/fed, GPC% and grain NPK 2 uptake compared with without inoculation in both seasons. Significant interaction effects PD x BF, PD x NP and BF x NP on grain yield and some of its attributes were detected. Whereas, no significant effect of second order interaction was found on any of the studied traits.