• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>African Journal of Agricultural Research >Effect of sowing dates and nitrogen levels for ethanol production from sweet sorghum stalks and grains
【24h】

Effect of sowing dates and nitrogen levels for ethanol production from sweet sorghum stalks and grains

机译：播期和氮素水平对甜高粱秆和谷物生产乙醇的影响

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Sweet sorghum is being investigated as a feedstock for ethanol production in semi-arid countries. It can be grown with fewer inputs than other energy crops. In Iran, due to long growing season, ethanol is produced from both sweet sorghum stem and grain. In other countries, ethanol is not produced from sweet sorghum grain due to low grain yield or short growing season. The purpose of this study was to maximize ethanol production from both stem and grain of sweet sorghum. Four planting dates (July 5, July 14, July 25 and August 4) and three nitrogen levels (50, 100 and 150 kg/ha urea) were assigned to the main and subplots, respectively. Plants were harvested at physiological maturity. Stem measurements were: stalk height, stalk diameter, stalk fresh yield, brix value, sucrose content, total sugar and ethanol yield and grain measurements were: number of grain per panicle, 1000 grain weight, grain yield, biological yield, harvest index and ethanol yield. Stem measurements were highest in July 5 planting and lowest in August 4 planting, while grain measurements were highest and lowest in August 4 and July 5 plantings, respectively. Stem and grain measurements in July 15 and July 25 were intermediate. More grain yield, 1000 grain weight and number of grain/panicle were obtained with the application of 150 kg/ha urea than the other two nitrogen levels. Based on the results, in order to obtain the highest ethanol yield from both stem and grain, it is suggested to plant sweet sorghum as early as possible and apply 150 kg/ha urea.
机译：在半干旱国家，甜高粱已被用作乙醇生产的原料。与其他能源作物相比，它的投入更少。在伊朗，由于生长季节长，甜高粱茎和谷物均产生乙醇。在其他国家，由于单产低或生长季节短，甜高粱谷物不生产乙醇。这项研究的目的是最大程度地提高甜高粱茎和谷的乙醇产量。主要和次地分别分配了四个播种日期（7月5日，7月14日，7月25日和8月4日）和三个氮水平（50、100和150 kg / ha尿素）。在生理成熟时收获植物。茎的测量值是：茎高，茎的直径，茎的新鲜产量，白利糖度值，蔗糖含量，总糖和乙醇的产量，谷物的测量值是：每穗粒数，1000粒重，谷粒的产量，生物产量，收获指数和乙醇让。 7月5日播种的茎最高，8月4日播种的最低，而8月4日和7月5日播种的最高和最低。 7月15日和7月25日的茎和谷粒测量介于中间。与其他两个氮水平相比，施用150 kg / ha的尿素可获得更高的谷物产量，1000粒重和谷物/穗数。根据结果​​，为了从茎和谷中获得最高的乙醇产量，建议尽早种植甜高粱，并施用150 kg / ha的尿素。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号