This book is another collaborative effort between CIAT and The Nippon Foundation to review and summarize the results of many years of research on cassava, especially that conducted in Asia by CIAT in collaboration with national programs in the various cassava-growing countries. [...] The main objective was not only to continue the development of new technological options to improve cassava yield while protecting the soil from degradation but also to enhance the adoption of these technologies by cassava farmers.

Much of the native forest in the highlands of western Kenya has been converted to agricultural land in order to feed the growing population, and more land is being cleared. In tropical Africa, this land use change results in progressive soil degradation, as the period of cultivation increases. Both rates and variation in infiltration, soil carbon concentration and other soil parameters are influenced by management within agricultural systems, but they have rarely been well documented in East Africa.

Geosoil permite almacenar, consultar e interpretar información tanto del suelo como de su entorno biofísico a diferentes escalas: parcela, finca, comunidad, municipio, departamento, región, país. Opera a partir de una base de datos relacional elaborada en ACCES 2000, compuesta por una serie de tablas principales estructuradas con información a diferentes niveles jerárquicos que permiten la caracterización de las propiedades del suelo.