Areej Alkeder(1)*, Rash Aljarad(1), Muhammad Iyad Abbara(1),Nabila Kridi(1), Safaa Hazeim(1), Julia Esmander(1) , Nada Ghiba(1)
(1). Department of Natural Resources Research, General Commission of Scientific Agricultural Researches, Syria.
(*Corresponding author: Dr.Areej Alkeder, E.mail: areejalkeder@gmail.com).
Received:15/10/2023 Accepted: 31/05/2023
Abstract:
The experiment was carried out at the Al-Nashabiyah Research Station in the Damascus countryside governorate in the 2022-2023 season, with the aim of studying the effect of adding levels of urea with biofertilizer on some production indicators of durum wheat, Sham 7 variety. Urea was added at four rates (25 – 50 – 75 – 100). % of the fertilizer recommendation separately, and the previous four treatments were added mixed with the EM1 biofertilizer, and the treatments were compared with the control treatment without addition and the EM1 biofertilizer treatment. Using a completely randomized block design. The results showed that there were no significant differences between the control and the biofertilizer treatment in all the indicators studied on wheat, while the increase was positive under the influence of the rest of the fertilizer treatments. The four treatments of urea mixed with the EM1 biofertilizer recorded significant differences in spike length, grain productivity, and weight of a thousand grains compared to the control. The urea fertilizer treatment added at a rate of 100% of the fertilizer recommendation and mixed with biofertilizer achieved the highest grain yield of 7.08 tons/ha compared to (the control 4.33 tons/ha and the biofertilizer treatment only 4.85 tons/ha).
Keywords: durum wheat, urea, biofertilizer, spike length, grain yield.
Full paper in Arabic: pdf