Research methods to the ecological factors of crop canopy Brief introduction of research methods of commodity specification and grade of Chinese medicinal materials Review on research methods for alelopathy and allelochemicals in plants Review on research methods of tourism ecology Research progress of pretreatment of biological samples Atmospheric deposition of organic nitrogen: A review Interactions among host plants, phytophagous insects and natural enemies and relevant research methods Research progress on effective compounds group of Chinese materia medica Research Progress on Biological Functions of Long Non-coding RNA in Plants RESEARCH METHODS FOR EVALUATIONABSORBING AND ACCUMULATING NUCLIDESOFPLANT Current knowledge and future challenges of non-genetically modified herbicide-resistant crops Review of soil seed bank studies: Size, pattern and impacting factors Nitric Oxide Biosynthesis Pathway in Plant Two methods for two-dimensional pattern analysis of community