共 3 条
- [2] Methods of Soil and Plant Analyses for Molybdenum .2 Purvis E R et al. Soil Sci . 1956
- [3] Zinc, Copper and Nickel Concentration in Soil Extracts and Crops Grown on Four Soils Treated with Metalloaded Sewage Sludge .2 Sandlers J R et al. Environ Poll . 1987