Assessment of the Effects of Different Nitrogen Fertilizers on Growth and Yield of Wheat (Triticum Aestivum L.) In El Multaga Area - Northern State of Sudan

Abstract

A field experiment was executed during two consecutive winter seasons of the years 2020/21 and 2021/22, at the research farm of the National Institute of Desert Studies – University of Gezira, new Hamdab scheme - Northern State of Sudan to assess the effect of Urea (N46%), NPK (20-10-10) and di ammonium phosphate (DAP) (18-46) fertilizers on growth and yield of wheat. The treatments were arranged in a randomized complete block design (RCBD) with three replicates. Consisted control (untreated plots), N (Urea 100 Kg fed-1), NPK (100 Kg fed-1) and di ammonium phosphate (DAP) 100Kg fed-1. Results indicated that there were no significant (P≤0.05) differences in the numbers of plant per meter square, but there are significant (P≤0.05) differences in plant height (cm), /spike length (Cm), thousand seed weight (g), biological yield, straw yield and harvest index in both seasons and highly significant (P≤0.01) differences in grain yield) ton/ ha) in both seasons compared to the control. The best type of evaluated fertilizer which gave the highest values of growth, yield and yield components of wheat for both seasons in high terrace soil of Northern State of Sudan was N(Urea) followed by NPK and DAP.