Effect Of Different Levels Of Nitrogen Fertilization And Cultivars On The Green Fodder Yield And The Grain Yield Of Oats (Avena Sativa L.)

Abstract

The experiment was conducted during the 2020-2019 agricultural season, at one of the agricultural fields of the Agricultural Extension Department, in Al-Muthanna Governorate, to study the effect of different levels of nitrogen fertilization and cultivars on green fodder yield, grain yield and oat crop components.The experiment included two factors, the first of which was four levels of fertilization (N0, N80, N160 and N240).The second factor was three cultivars of oats (Bohoth11, Jouda and Shefaa). The experiment was carried out using the split-plots design using R.C.D.B. and with three replicate.Fertilization levels were placed in the main plots and cultivars in the sub plots.

The results showed that Jouda cultivar was better than the number of tillers in the first clipping, while Shefaacultivar outperformed in the second clipping, and also surpassed in specific weight, number of leaves and green fodder yield for the first clipping with the highest averages, and for the specific weight and number of leaves for the first and second clipping, and green fodder for the first clipping, as for the second clipping, Joudacultivar was superior. Shefaacultivar also surpassed in the number of grains in the dahlia, the weight of a thousand grains, and the grain yield by giving the highest averages. As for fertilization treatments, the N240 fertilization treatment outperformed all the studied traits in the experiment except for the number of tillers in the first clipping. The interaction, the combination (V3 X N240) outperformed most of the study traits.