Effect of mineral and biological potassium under different rates of nitrogen fertilization on productivity and technological characteristics of sweet sorghum (sorghum bicolor L. Moench) treacle in Egyptand Ethiopia /
تأثير البوتاسيوم المعدنى والحيوى تحت معدلات مختلفة من التسميد النيتروجينى على الصفات الانتاجية و التكنولوجية لعسل الذرة السكرية فى مصر و اثيوبيا
Samar Abdelaty Mohamed Helmy ; Supervised Adel Saad Elhasanin , Maria Girgis Beshay
- Cairo : Samar Abdelaty Mohamed Helmy , 2014
- 114 P. : charts ; 25cm
Thesis (Ph.D.) - Cairo University - Institute of African Research and Studies - Department of Natural Resources
The present investigation was conducted at Mallawi Agricultural Research Station, Minia Governorate for one successive season 2010, to find out the effect of some mineral fertilizer (nitrogen and potassium) and bio-fertilizer Potassium (Mag) and their interactions on some quality and technological characteristics of juice and syrup, as well as yields and yield components of sweet sorghum plants. Sorghum variety Brandes was sown in the 1st week of May, 2010 season. Split split plot design with four replicates was used. Harvest was carried out after 120 days from sowing at the hard dough stage. Results obtained revealed: Application of 60 kg N + 24 kg K₂O + 4 bags K bio fertilizer increased apparently, Stalk height, stalk diameter, number of leaves plant, stripped stalk weight (kg/plant); forage [green leaf, tillers and panicle grain] weight, juice quality [juice extraction %, TSS%, sucrose%, purity%, Glucose ratio and juice acidity pH]. Syrup quality - syrup extraction %, sucrose%, purity%, pH, P%, Ca% and Fe ppm contents of the manufactured syrup