农学 >>> 农学总论 作物学 园艺学 土壤学 植物保护学 农药学 林学 畜牧学 兽医学 水产学
搜索结果: 1-5 共查到农学 beyond相关记录5条 . 查询时间(0.093 秒)
Is organic farming the only alternative to conventional agriculture to promote biodiversity in agricultural landscapes? An international research team questions this. According to the authors, a lands...
Biology relies on the central thesis that the genes in an organism encode molecular mechanisms that combine with stimuli and raw materials from the environment to create a final phenotypic expression ...
Traditionally, climate change eorts targeted at forests focused on trees as a means to protect and create forest carbon stocks. Forests, however, are more than just trees – they can be div...
This paper examines and compares institutional arrangements addressing market failures endemic to rural areas. It argues that rural market failures cannot be satisfactorily addressed by for-profit fir...
January 15, 2007,Surgical sterilization has long been considered the gold standard for managing dog and cat populations in the United States. Yet the millions of stray and unwanted companion animals e...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...