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Integrated soil fertility management is becoming increasingly important for all crops in the wake of declining soil fertility in many Tropical countries. It requires a complex of approaches that need to be properly and judiciously coordinated for profitability and sustainability. Using the emerging knowledge of crop modeling, farm input decisions are made easier and more accurate. This book describes an Arabica coffee yield model, developed by calibrating a generic model QUEFTS to the coffee ecosystem of Northern Tanzania. It is especially useful to elite coffee farmers, agronomists,...

Tanzania Mainland has about 120 different ethnic groups. The Chagga is the third most populous ethnic group contributing 4.52% of the entire population as of 2012, also well known as the most vigilant entrepreneurs in Africa. This properly illustrated book covers all aspects of their ethno-anthropology, including histories before, during and after colonization; the roles and fate of sub-ethnic chiefdoms. Aspects of their physical and spiritual life have been outlined, including settlements, foods, drinks, clothing, dances, economic activities, religions and beliefs, together with rituals that...