اعلانات هامة

The study aimed to identify effect of mineral fertilizer and bio fertilizer by baker's yeast (Saccharomyces cerevisiae) on productivity of water cress plant( Eruca sativa sp), through study of effect of both fertilizing on productivity and interaction between them..

The field experiment was performed in fields of faculty of agriculture in Der-Ezzor, on experimental area A = 9 m², divided to six treatments as a following: '1- no add, 2- pure mineral fertilizer 100%, 3- mineral 75%+ bio 25%, 4- mineral 50%+ bio 50%, 5 mineral 25% + bio 75%, and 6- pure bio-fertilizer 100%.

The experiment was conducted during one season, which continued from 2/11/ 2008 to 12/ 3/ 2009, then data collection, statistical analyzing started by means and LSD test 0.05).

The most important results of study areas a follow: Findings of the first and second harvests there were high significance about raising of stems, and increasing of leaves numbers, leaves area, and productivity of the plants in the fifth treatment, after that sixth treatment.

Key words: mineral fertilizers, biofertilizers, plant productivity

استهدفت الدراسة التعرف على تأثير التسميد المعدني والحيوي باستخدام خميرة Saccharomyces cervisiae في إنتاجية نبات الجرجير، من خلال دراسة تأثير التسميد المعدني والحيوي على الإنتاجية كل على حده و تأثير التداخل بينهما.