Response of Growth and Productivity of Wheat Cultivars (Triticum aestivum L.) to Nano -N and Urea Fertilizer

Abstract Field experiment ware carried out at the Agricultural Research Station of Basrah University College Agriculture, north Basra governorate during winter seasons 2020/2021 and 2021/2022 to study growth yield three cultivars wheat (IPA99, BANGIL JAAD) urea- nitrogen applied four rate (0,60,120 180)kg ha -1 as comported Nano-N (0, 15 30) L . The was designed factorial randomized complete design (R.C.B.D)with replicates. A flag leaf area, number spikes in m2, grian per spike grain parameters were recorded. results showed no significant difference all studied parameters, components Between sources fertilizer (urea nano), however differed significantly parameter grains JAAD cultivar higher than those other IPA99 AND for both growing seasons. Increasing level urea nano an increased Application 180 kg N 30 resulted highest average spike, weight 1000 interaction treatment between liter nano- source spikes, yield. However Ibaa99 nano, grain. lowest yield, recorded control