Blar i Brage NMBU på forfatter "Mapiki, A."
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Agronomic potential of indigenous phosphate rocks as a phosphorus fertilizer in Zambia - Interim report
Mapiki, A.; Singh, Bal Ram (Report, 1990-03)One of the major problems that has inhibited the development of economically successful agriculture in many areas of the tropics is the poor soil fertility for crop production (Chien & Hammond, 1988). Many tropical regions ...