Wiedenfeld, R.P. (1984) Nutrient requirements and use efficiency by sweet sorghum. Energy in Agriculture, 3 (1). pp. 49-59.
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Abstract
Biomass yields, and nitrogen (N) uptake by sweet sorghum were enhanced, while stalk carbohydrate levels were reduced, with the application of 112 kg N/ha. Application of 224 kg N/ha further increased N uptake by one cultivar, but did not further increase yield. Phosphorus application to a soil which contained a high level of available P had no effect on sweet sorghum. Uptake efficiency of applied N averaged 33% for two cultivars where 112 kg N/ha was applied. Since total N uptake was only slightly or not increased where 224 kg N/ha was applied, uptake efficiency of applied N at this rate fell to 17%. Theoretical ethanol yield increased with increasing N uptake. Nitrogen use efficiency defined as theoretical ethanol yield per unit of N taken up decreased with increasing total N uptake. Theoretical ethanol yields and N utilization by sweet sorghum compared favourably with grain crops when used as a feedstock to produce ethanol
| Item Type: | Article |
|---|---|
| Author Affiliation: | Texas Agricultural Experiment Station, 2415 East Highway 83, Weslaco, TX 78596, USA |
| Subjects: | Social Sciences > Agricultural Economics |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 14 May 2012 08:10 |
| Last Modified: | 14 May 2012 08:10 |
| Official URL: | http://www.sciencedirect.com/science/article/pii/0... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/5300 |
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