Recommendations are given on the var. and cultural practices used in cassava cultivation in the Colombian Llanos Orientales. Initially, soil acidity and low fertility were believed to be the major constraints; however, trials have indicated that diseases (bacterioses, superelongation, and anthracnose), pests (mites, thrips, mealybugs, and lace bugs), and the long summer season are obstacles more difficult to overcome. Var. should be selected not only for yields and resistance to the above diseases and pests but also for final end use of roots. The most important characteristics (productivity, DM, and HCN content) of 14 var. recommended for the region are indicated. Cutting selection and preparation (3 preplant mixtures indicated) are detailed as well as land preparation, liming, fertilization, and harvest. Cassava can be planted throughout the yr, if soil moisture is adequate; several alternative crop distributions are given with the resp. yields obtained in different trials. The most effective weed, pest, and disease control measures are indicated with emphasis on chemical control. Cassava production costs/ha are also given. (CIAT)
Authors and Publishers
To reduce hunger and poverty, and improve human nutrition in the tropics through research aimed at increasing the eco-efficiency of agriculture.
CIAT’s staff includes about 200 scientists. Supported by a wide array of donors, the Center collaborates with hundreds of partners to conduct high-quality research and translate the results into development impact. A Board of Trustees provides oversight of CIAT’s research and financial management.
CGIAR is the only worldwide partnership addressing agricultural research for development, whose work contributes to the global effort to tackle poverty, hunger and major nutrition imbalances, and environmental degradation.