介绍了岭峰自然保护区内常见的昆虫种类有225种,隶属35科、5个目,所有研究标本均保存在岭峰自然保护区标本室.......

对烟台市蔬菜保护地土壤的测定分析表明,烟台市各区（市）蔬菜保护地土壤有机质含量较低,土壤速效氮和速效钾含量也较低,土壤速效磷含......

采用常规方法研究了青海省大棚和温室中辣椒健株、病株根际土壤和根表的微生物数量、放线菌组成及拮抗性放线菌的分布。结果表明：（1）......

The 1951 San Francisco Peace Treaty was the one and only international opportunity that would have allowed demanding for......

昆明地区蔬菜、花卉种植以设施栽培为主,本文对不同棚龄的大棚设施土壤pH、全N、P、K、碱解N、速效K、有效P、交换性Ca、Mg等指标......

奥利弗·克伦威尔所建立的护国公政体往往被视为独裁体制。其实，克伦威尔不是狂热的独裁者，护国公政体是基于相互制衡理念的政治......

Scholarly narratives concerning Tuva becoming a protectorate of Czarist Russia tend to contextualise this action within ......

The aim of this study is to determine the transfer factor soil-to-plant and to assess the concentration level of natural......