Dazomet is an excellent soil sterilant of high efficiency, low toxicity and no-residue environmentally. When dazomet is applied to wet soil, it will generate Methyl isothiocyanate gas which will quickly expand between soil particles and effectively kill nematode, silborne pathogen (epiphyte and bactericide), soil insect, annual weed seeds etc., after application of dazomet, the soil can be cleaned completely. It is the most applicable and effective to the plants which can be planted all the year around.