不同施肥处理对桑树产叶量的影响

来源 :农业与技术 | 被引量 : 0次 | 上传用户:anruixiang
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  摘 要:本文连续3a对试验桑园施肥4个处理(A组是单一尿素,B组是复合肥料,C组尿素 复合肥料,D组为对照区,不施任何化肥)的桑树叶产量进行测定。研究结果表明:施用氮素 复合肥的C组处理,3a的叶产量均高于其他处理组,说明这种施肥方式能够有效提高桑树叶产量。 全文查看链接
其他文献
Patients under systemic (ethylenediaminetetraacetic acid) EDTA are at risk of hemorrhage for any accidental trauma even the superficial ones. This research is a
Banded Iron Formations (BIFs) were formed by contemporaneous events of active sediments supply and the venting of a hydrothermal fluid source at the Mid-Ocean-R
The changing nature of climatic factors has different impacts on agriculture based areas, periods and crops. Farmers are the most vulnerable group who are affec
The alimentary canal contents of 360 Barbus luteus caught from MOD between January 2010 to December 2010 were examined. The phyto-plankton, zooplanktons, detrit
This paper uses a new statistical method for studying self-organization in order to explain the origins of global catastrophes, namely the exceeding of the crit
摘 要:目前,我国的生态环境呈现出严峻形势,尤其是生态垃圾的处理方式。而园林植物可以改善生态环境,并且通过实践发现,园林植物可以消化生态垃圾,使生态垃圾成为园林植物的养分。本文进一步的探究了生态垃圾处理与园林植物的关系,主要从生态垃圾与园林植物的概念以及其影响生态垃圾处理与园林植物的关系2个方面阐述。  关键词:生态垃圾;园林植物;关系  中图分类号:TU986.2 文献标识码:A DOI:10.
The disposal of plastic solid waste (PSW) has become a major worldwide environmental problem. New sustainable processes have emerged, i.e. either advanced mecha
The time-integrated yearly values of North Atlantic Oscillation (INAO) are found to be well correlated to the sea surface temperature. The results give the feas