• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Agricultural mechanization in Asia, Africa and Latin America >The Response of Two-Sorghum Cultivars to Conventional and Conservation Tillage Systems in Central Sudan
【24h】

The Response of Two-Sorghum Cultivars to Conventional and Conservation Tillage Systems in Central Sudan

机译：苏丹中部两个高粱品种对常规耕作和保护性耕作制度的反应

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Water conservation becomes the ultimate goal of crop producers under rain fed agriculture. In this regard, different tillage systems can produce varying effects on soil physical properties and consequently soil moisture content and crop yield. Three tillage systems were selected to study the effect on some soil physical properties and yield of two grain-sorghum cultivars. The experiments were carried out for two consecutive seasons at two sites in central Sudan. The three tillage systems were conservation using chiseling to a depth of 30 cm, conventional using ridging to a depth of 8 cm and no-till as control. Conservation tillage showed a significant effect on all soil physical properties as well as sorghum yield components. Soil bulk density with conservation and conventional tillage decreased below the control value by 20.0 % and 6.6 %, respectively, while soil porosity increased over the control value by 52.0 % and 9.8 % under the aforementioned tillage systems, respectively. As a result, the soil moisture content increased beyond the control by 244.5 % in the case of conservation tillage and by 122.4 % with conventional tillage system. Grain yield increased by 596.3 % under conservation tillage and by 200 % under conventional tillage. On the other hand, the dry matter yield was 188.2 % and 30 % higher than the control under conservation and conventional tillage systems, respectively.
机译：节水成为雨育农业下农作物生产者的最终目标。在这方面，不同的耕作制度可能对土壤物理特性产生不同的影响，从而对土壤水分和作物产量产生不同的影响。选择了三种耕作系统，研究了两种谷物-高粱对土壤物理性质和产量的影响。实验在苏丹中部的两个地点连续进行了两个季节。三种耕作系统均采用凿深至30 cm的方式进行保护，常规方式是采用翻耕至8 cm的深度并以免耕为对照。保护性耕作对土壤的所有物理性质以及高粱的产量构成都显示出显着影响。在上述耕作制度下，保护性耕作和常规耕作的土壤容重分别比控制值低20.0％和6.6％，而孔隙度分别比控制值高52.0％和9.8％。结果，在保护性耕作的情况下，土壤含水量超出了控制范围的244.5％，在传统耕作制度下增加了122.4％。保护性耕作的谷物产量增加了596.3％，常规耕作的谷物产量增加了200％。另一方面，在保护性耕作和常规耕作制度下，干物质收率分别比对照高188.2％和30％。

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