Nitrogen nutrition of Myriophyllum spicatum: variation of plant tissue nitrogen concentration with season and site in Lake WingraDALE S. NICHOLS,DENNIS R. KEENEYFRESHWATER BIOLOGY(1976)引用 63|浏览3暂无评分关键词nitrogen,seasonalityAI 理解论文溯源树样例生成溯源树,研究论文发展脉络