Soil fertility evaluation Cropping system and soil management 1 Economic of lime and fertilizer use 1 Epilogue 1 Forest fire 1 Forest soil organic matter 1 Geology and the earth 1 Global population growth 1 Liming 1 Micronutrients 1 Nutrient management 1 Nutrient management in forestry 1 Petrology and mineralogy 1 Potassium 1 Soil and fertilizer nitrogen 1 Soil taxonomy 1 Whethering and soil formation 1