Suchada Karuna is a lecturer in Dept. of Soil Science, Faculty of Agriculture, Kasetsart University. Kamphaeng Saen Campus. Her expert in Soil Physics. Her graduated M.S.(Soil Science), Kasetsart University, Thailand, 2005. And B.S.(Agriculture), Kasetsart University, Thailand, 2002. Internal Active Project is in 2009 Root-knot disease caused by nematode in guava production areas of central part. In 2008 The effect of soil properties on nematode spreading. In 2008 Root-knot disease caused by nematode in guava production areas of central part. External Active Project is in 2016 Utilization from Post-crop Mushroom for Organic Fertilizer Production Following Standard of Department of Agriculture, Fancywood Industries Public Co., Ltd., Effect of Different Types of Ammonium Sulfate Application on Growth and Yield Components of Sugarcane, Parich Fertilizer Co., Ltd., Nutrients Management for Increasing Yield of Organic Jasmine Rice. Greencal Thailand Co., Ltd.