Treatment of Mushroom Culture Wastes for Use as Organic Substrate for Safe Vegetable Cultivation

Abstract

     The purpose of this research was to apply micro-biotechnology to treat mushrooms culture wastes to produce organic substrate for safe vegetable production in order to efficiently recycle the organic waste resources and increase the value for mushroom growing towards sustainable agricultural development and environmental protection. Five microbial strains, including Azotobacter, Bacilus subtilis, Sacharomyces, Streptomyces and Trichoderma with high amylase, protease and cellulase and biological activities were used as biological formulation for treating the mushroom culture wastes. Results obtained indicated that the organic substrate after treatment had high nutrient content and high density of useful microorganisms that ensure the growth and development of vegetables without other additional costs. Ceylon spinach grown on organic substrate showed better growth, significant yield increase and reduced insect infestation rate. Moreover, the vegetables grown on the substrate from treatment of mushroom wastes possessed high quality standards for safe vegetables conforming to the Decision No. 106/2007/QD-BNNPTNN.