Professor Dr. Tasnee Attanandana is a lecturer in Dept. of Soil Science, Faculty of Agriculture, Kasetsart University, Bangkhen Campus. Her expert in Soil Chemistry Fertility. Her graduated B.S. Agriculture, Kasetsart University. M.S. (Soil Science), University of Philippines at Los Banos, Philippines. And Dr. Agr.(Soil Chem. Fertility), Kyoto Universtiy, Japan. Internal Closed Project is in 2014 Adding efficiency early cassava cultivar production by nutrient and spacing suitable management in the cultivation area. And in 2009 Site-specific nutrient management for effective cassava production.