Merfat T. Ben Mahmud^*(1)

(1). Soil and Water Department, Faculty of Agriculture, Tripoli University, Tripoli, Libya.

(*Corresponding author: Dr. Merfat Ben Mahmoud.
E-Mail: dr.mbenmahmoud@yahoo.com).

Received: 10/04/2016                                      Accepted: 16/05/2016

Abstract

The effect of inoculation with nitrogen fixation bacteria Burkholderia ssp. that isolated from Libyan soil and different rates of nitrogen fertilization (ammonium phosphate) 0, 80, 180,350, and 500 kg N/ha on the productivity and some fruits properties of tomato variety Marmande. The experiment was conductrd at a farm in Wadi Elrabie area (Tajura), which located at the east of Tripoli, Libya during 2014/2015 season. The results showed that the highest percentage in productivity was achieved when the plants inoculated with bacteria Burkholderia and fertilized with 180 kg N/ha, where the yield was 17.50 kg/plant (280.829 ton/ha). In terms of length, and width of the plant, fruit content of vitamin C, acidity and total soluble solids, the results did not show significant differences comparing to the control. Thus it can be concluded that the use of a bacterial inoculation is effective when it used accompany with a rate of nitrogen fertilization ranged from 80 to 350 kg N/ha under environmental experiment conditions.

Key Words: Marmand, Burkholderia Spp. Nitrogen fertilizer.

Full paper in Arabic:تأثير التلقيح ببكتيريا Burkholdria spp مع معدلات مختلفة من التسميد النيتروجيني في إنتاجية نبات الطماطم