• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>South African Journal of Geology: Being the Transaction of the Geological Society of South African: Syndie die Verhandelinge van die Geologiese Vereniging van Suid-Afrika >Evaluating crop yields, crop quality and soil fertility from organic and conventional farming systems in South Africa’s southern Cape
【24h】

Evaluating crop yields, crop quality and soil fertility from organic and conventional farming systems in South Africa’s southern Cape

机译：从南非南部南部的有机和常规农业系统评估作物产量，作物质量和土壤肥力

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

Climate change, water scarcity and degraded soils jeopardise the ability of agriculture to ensure food security. The dependence on agrochemicals and monoculture practices in agriculture is not only environmentally destructive and expensive; these practices also produce foods of poor nutritional value. Here we report on the initial results of a long-term comparative controlled experiment at the NMMU Saasveld campus in George to test the differences in yield and nutritional quality of crops grown under different agricultural practices. A baseline study showed considerable variation in the soil fertility of the experimental site. As anticipated from the soil analysis results, the baseline crop had varying growth from one replication to the other. Initial organic treatment yields were lower and initial nutritional levels were inconclusive. The experimental site accommodates a randomised complete block design with four replications for three agricultural treatments: conventional, organic and controlled. The crops included cabbage (Brassica olaracea, var. capitata L.), sweet potato (Ipomea batatas) and cowpeas (Vigna unguiculata). Our results show that the cabbage and cowpea yields grown under organic conditions were 20% and 24% less than conventional yields, respectively.
机译：气候变化，水资源稀缺和降解土壤危及农业以确保粮食安全的能力。农业农业和单一栽培实践的依赖不仅是环境破坏性和昂贵的;这些实践还产生营养价值差的食物。在这里，我们报告了乔治NMMU SaaSveld校园的长期比较控制实验的初步结果，以测试不同农业实践中种植的作物产量和营养质量的差异。基线研究表明实验部位土壤肥力的相当大变化。由于土壤分析结果预期，基线作物从对另一个复制的复制产生了不同的增长。初始有机处理产率较低，初始营养水平不确定。实验部位可容纳随机完整的块设计，具有四种农业治疗的四种复制：常规，有机和控制。作物包括白菜（芸苔olacea，var。Capitata L.），红薯（Ipomea Batatas）和豇豆（Vigna Unguiculata）。我们的研究结果表明，在有机条件下生长的白菜和豇豆产量分别比常规产率小24％。

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