Abstract
Making agricultural soil healthy and fertile with the aid of soil microbes, as well as raising cultivars with strong disease and/or pest resistance, and those with high nutrient absorption ability, will be helpful for practicing low input sustainable agriculture (abbreviated as LISA). In the process of examining the effects of the soil-microbial flora activating agent “Takeo-Tanisaka solution” (abbreviated as TT solution), which two of the authors developed in 2006, on the growth of spinach and carrot, it proved not only to promote the growth of the vegetables but also to restrain the outbreak of the soil-infectious rhizoctonia disease caused by a plant pathogenic fungus Rhizoctonia solani. From these results, we conclude that the TT solution diversifies and activates the soil microbial flora, and thereby prevents the outbreak of soil soil-infectious plant diseases, which indicates that the TT solution becomes an effective tool in practicing LISA.
