GEOG 132 Lecture Notes - Lecture 2: Nixtamalization, Botany, Biome
Document Summary
1/24/2017: finish discussion on food plant domestication, nikoli vavlilov and significance of his research, columbian exchange and critique, ppt on african contributions to new world food systems. Microenvironments and knowledge systems: african components of african exchange, nikoli vavlilov. Privately held in the us, but state forms in ussr. All worlds" races depending on the domestication of food. Vavlilov managed only to get as far as ethiopia before russia got in charge. What he did, he based on the number of varieties, claim there about 13 major regions for plant domestication. Africa/sub-saharan african/ethiopian/ camaro, nigeria/ north of sahara (rice was domesticated) Each of these areas has seed crops/ root crops as part of the domestication. Asia / southern china (rice)/southeast asia/new guinea (sugarcane), great centers of root crops. Inorganic fertilizers, prior to that soils that needed fertility. A farmer would grow a crop the farmer could leave that field fallow. Cropping system, introduce livestock, manure can contribute to fertility.
