Mahmoud,, E.A. and Ramadan, B.S.H. and Bekheet, M.A. and Gomaa, M.A. (2013) Effect of Nitrogen Fertilization and Plant Density on Productivity and Quality of Sweet Sorghum. American-Eurasian Journal of Agricultural & Environmental Sciences, 13 (5). pp. 654-659.
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Abstract
Yield response of sweet sorghum (Sorghum bicolor L.) to nitrogen rates (60, 80, 100 and 120 kg/feddan, one feddan = 0.42ha) and plant density (40, 46.7, 54 and 70 thousand plants/fed) was studied in the private farm at El-Grazat, Sohag Governorate, Egypt during 2008 and 2009 seasons. Results revealed that increasing N rate up to 120 kg/fed significantly increased growth traits in terms of LA, LAI, stalk diameter and stalk length, as well as quality traits (Brix, reducing sugars and juice extraction %). Sucrose and purity % responded up to 100 kg N thereafter they decreased with further addition of N. Stalk yield increased by 14.12 and 15.52%, syrup yield per ton of stalks by 18.55 and 15.83%, syrup yield per fed by 35.46 and 33.91% and sugar yield by 26.29 and 33.59% as N rate increased up to 120 kg/fed. Increasing plant density from 40000 up 70000 plants/fed depressed sweet sorghum growth as well as juice quality traits, while stalk length increased with dense sowing. Sowing sweet sorghum at 70000 plants/fed gave the highest yields of stalk, syrup and sugar per fed. The highest stalk yield resulted from 120 kg N + 70000 plant/fed, while the highest syrup and sugar yield resulted from 100 kg N + 46.7 thousands plants/fed. Generally, it could be concluded that the reduction in some quality traits (Brix, sucrose, juice extraction %) under higher plant density could be compensated by higher yield of stalks consequently the final syrup and sugar yields could be increased
| Item Type: | Article |
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| Author Affiliation: | Department of Agronomy, Faculty of Agriculture, Cairo University, Giza, Egypt |
| Subjects: | Plant Production Plant Protection |
| Divisions: | Sorghum |
| Depositing User: | Mr. SanatKumar Behera |
| Date Deposited: | 31 Aug 2013 11:26 |
| Last Modified: | 31 Aug 2013 11:26 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/11615 |
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