الفهرس 
AcknowledgmentOnly 14 pages are availabe for public view
 |  | from | 164 |  |  |
| | | from | 164 | | |
Abstract
The experimental work of this study was represented in a pot experiment which was carried out during the summer of 2011 season at the Agricultural Research Station farm in Sakha, Kafr El-Sheikh, Egypt to study the effects of nitrogen fertilizer, biofertilization and fertigation on tomato yield, quality and nutrients uptake under drip fertigation system, which supplies crops with their appropriate amounts of water and nutrients at the same time during their growth, which in turn improves water and nutrient use efficiency with higher production and the surrounded environment. The Treatments Used As Follows: Split split plot design.1- The first factor (Tomato varieties): Two varieties were selected as follows: Hybrid Super streen B. Alesa. 2- The second factor(Biofertilizer levels): Without biofertilizer. With biofertilizer. (Bio fertilizer is compost tea enriched with Bacillus megatheriem, Azotobacter and Azosperillium).3- The third factor (N fertigation levels): F0: Without N fertigation dose. F1: 50% of recommended N fertigation dose (3.25 g pot-1). F2: 75% of recommended N fertigation dose (4.87 g pot-1). F3: 100% of recommended N fertigation dose (6.50 g pot-1).
CONCLUSION
The best treatment was 100% of the recommended N fertigation by rate (200 kg fed-1) jointly with biofertilizer to obtain the highest tomato fruit and growth especially with Alesa variety under the conditions of the present experiment.