Abundance and deficiency 第1页

State of soil available sulphur and its requirement along Huaihe River region Study on index system for soil testing and formulated fertilization—A case study of rice of Jiangdu City in Jiangsu Province Geochemical characteristics of typical tobacco-planting soils inZhangjiajie mountainous area Study on index of fertilizer recommendation for spring wheat in Hetao irrigated area Abundance and deficiency indices of phosphorus in South China vegetable field based on different soil testing methods