Areej Alkheder (1)*, Mohammad Manhal Alzabi(1), Samer Al Rabee (1), Ababil Hamoud (1), Rasha Al Jarad(1), and Gada Neama(1)
(1) Natural Resources Research Management General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria.
(*corresponding author: Dr. Areej Alkheder, E-mail: areejalkeder@gmail.com)
Received:27/07/2021 Accepted:5/01/2022
Abstract:
The experiment was carried out at Al-Nashabiya Research Station in the Damascus Countryside Research Center during the season 2019/2020 in order to study the effect of adding several levels of nitrogen on the growth and productivity of two irrigated wheat cultivars (Sham 7 and Sham 10). The experiment consisted of the following nitrogen application rates: N=0, N =80, N2=120, N3=160, N4=200, N5=240 kg N/ha. The experiment was layout was a complete randomized design with three replicates for each treatment. The results showed a direct increase in plant height, spike length and number of spikes per unit area with increasing rate of applied fertilizer compared to the control in the two studied varieties. In terms of productivity, it was noted that the treatments N3 and N4 in the soft cultivar Sham 10, gave more than (7 tons/ha) compared to the control treatment (5.33 ton/ha). Treatments N2 and N3 excelled in the hard cultivar Sham 7, where the productivity reached (6.57 and 6.77 ton/ha, respectively), compared to the control, in which grain yield was (4.37 tons/ha).
Key words: Nitrogen Fertilization, Wheat, Cham7, Cham10 spike length, productive characteristics.
Full paper in Arabic: pdf