<正>Soil samples from thirty sites representing four agro-ecological zones in the Western Usambara Mountains (WUM) of th......

辣椒是我国广大群众日常生活的必需品,在国内有广阔的市场,需求量巨大。在我国许多地区,均构建有辣椒生产基地,辣椒的种植面积和种......