یادداشتهای مربوط به کتابنامه ، واژه نامه و نمایه های داخل اثر
متن يادداشت
index
متن يادداشت
Includes bibliographical references
یادداشتهای مربوط به مندرجات
متن يادداشت
Introduction to soil -- Soil formation -- Soil physical properties -- Soil biological properties -- Soil chemical properties -- Soil water -- Soil temperature -- Soil fertility and plant nutrition -- Soil management -- Soil conservation and the environment -- Soil classification and surveys -- Soil and its uses.