Ali Dayoub *⁽¹⁾, Yasser Hammad⁽¹⁾, and Hala Muhammad⁽¹⁾

 (1). Department of Field Crops, Faculty of Agricultural Engineering, Tishreen University, Lattakia, Syria.

(*Corresponding author: Ali Dayoub: Email ali.dayoub.3344@gmail.com).

Received:22/09/2023          Accepted: 16/11/2023

Abstract: 

The research was carried out in the Jableh pine area, 15 km from the city of Latakia, and at an altitude estimated at 15 m from sea level, in the two agricultural seasons 2018-2019 and 2019-2020 to demonstrate the effect of bacterial inoculation with (Rh.Lupinii – Nitropin – Rh.Lupinii + Nitropin). Several levels of nitrogen fertilization (0 – 20, 40 – 60 – 80 kg/ha) affected some morphological and productive characteristics of white lupine plants. The study showed an increase in plant height, green weight, and leaf surface area with increasing the rate of nitrogen fertilization from 0 to 80. kg/ha and a decrease in the number of root nodules, horn length and number of fruiting branches with an increase in the rate of nitrogen fertilization from 60 to 80 kg/ha. Bacterial inoculation using (Rh.Lupinii + Nitropin) led to a significant increase in all the studied traits. The combined interaction between The nitrogen fertilization level of 60 kg/ha and bacterial inoculation (Rh.Lupinii + Nitropin) led to a significant increase in the number of fruit branches, the number of root nodules, and the length of the pod. The interaction between the nitrogen fertilization level of 80 kg/Ha and the bacterial inoculation (Rh.Lupinii + Nitropin) led to ) To significantly increase plant height, number of fruiting branches, vegetative surface area, and green weight .              

  Keywords: white lupine – biofertilizers – bacterial inoculation – nitrogen fertilization.

Full paper in Arabic: pdf