Soil productivity research programme Misamfu Regional Research Centre - Overview of Phosphorus Research in Northern Zambia 1981-1993

Fra NORAGRIC. Samuel Phiri (Department of Agriculture Misamfu, Kasama). Zambia.One of the major problems that has inhibited the development of economically successful agriculture in many areas of the tropics in poor soil fertility for crop production. Many tropical regions, are low in both total and available phosphorus. After water and nitrogen, the most commonly limiting nutrient elements in these regions are probably phosphorus and sulphur (Sanchez, 1976)