Kassab M. M., R. Kh Darwesh and M. Hefzy( 2019). Influence of irrigation and splitting Nitrogen fertilizer on productivity of some wheat
varieties in clay soil
Middle East Journal of Agriculture Research EISSN: 2706-7955 ISSN: 2077-4605
DOI: 10.36632/mejar/2019.8.4.19 Volume : 08 | Issue : 04| Oct.-Dec. | 2019
Pages:1166-1181
Abstract: Irrigation and fertilizers play a vital role in agriculture, so field experiments were performed in a clay soil at Sakha agricultural research station farm, Kafr El-Sheikh Governorate, during the two successive growing seasons (2017/18 and 2018/19). Experiments involving winter wheat with irrigation every 21 (I1), 28 (I2) and 35 (I3) days and application of nitrogen fertilizer requirements with one, two and three doses through the season for two varieties Gemaza-11 and Misr-1. Results showed that, irrigation every 28 and 35 days were reduced the applied water by 14.0 and 20.0 % less than that irrigation every 21 days. The overall mean values for wheat consumptive use can be descended in order I1>I2>I3 in the two growing seasons. Gemaza-11 cultivar gave the highest value of CU comparing with Misr-1. Values of productivity of irrigation water (PIW) and Water productivity (WP) were increased by decreasing the amounts of applied water, where the highest values were recorded under irrigation treatment I3 comparing with other treatments I2 and I1. The highest mean values were recorded under splitting nitrogen fertilizer to three doses comparing with other treatments for Misr-1 variety. The highest mean values for grains, straw, biological yield, 1000-grain weight, plant height, number of Spikes, m-2 and Spike length, were produced with irrigation every 35 day and splitting nitrogen fertilizer to three doses for Misr-1 variety in the two seasons. So, irrigating wheat every 35 day during growing seasons and application of N in three doses gave the highest values of yield and yield components of Misr-1 wheat cultivar under North Nile Delta condition.
Keywords: (wheat, irrigation, nitrogen fertilizer, productivity)
