TO THE QUESTION OF USING INDUSTRIAL TOBACCO WASTES FOR INCREASING SOIL FERTILITY

Abstract

Irretrievable industrial tobacco wastes – tobacco dust is buried at special areas or undergoes combus-tion process; therefore it is serious pollution agent. Because of this methods for its non-burying recycling are of current interest. For example, tobacco dust can be used for increasing soil fertility, as it contains nutritious compounds: nitrogen (1.84-2.3%), phosphorus (0.24-0.37%) and potassium (2.14-3.72%). But there is information that tobacco dust undergoes little degradation in the soil during one season and after second applying it can lead to soil intoxication and to dying of its microorganisms. Thus, efficient method for solving this problem is searching techniques for decreasing toxicity of dust applied into soil as ferti-lizer. New ecologically safe method for recycling tobacco dust is proposed. It is based on utilizing tobac-co dust (2, 5, 8 t/ha) in combination with biodestructors (Sternifag 80g/ha or Biocomplex BTU 1l/ha). For increasing degradation rate onto non-toxic compounds biodestructor is applied in combination with water and ammonium nitrate on dust uniformly spread soil surface. After that this mixture should be ploughed one month before sowing or transplanting. Utilizing this method allows increasing basic labile nutrients (nitrogen, phosphorus, potassium) in the soil and its biological activity, which is seen by in-creasing nitrification properties, intensity of cellulose destruction, carbon dioxide production. Also this method allows soil improving because of pathogenic fungi suppression, decreasing negative effect on en-vironment and partially solve problem of safe recycling industrial tobacco wastes.