Production of the mushroom Trichoderma Harzianum A-34 in alternative solid substratums

Abstract

In the new agricultural model's establishment in that Cuba is determined, one of the most urgent tasks is to find roads to reduce the use of synthetic plaguecidas for the handling of plagues. One of these roads is the biological control that, besides reducing the environmental impact in the agricultural activity, it allows to assure the agricultural sustainability. Among the methods of biological control, it is the use of Trichoderma harzianum A-34 as fungicide, for their antagonistic activity in front of phytopathogens. It is produced in a handmade way in solid state, static and two-phase liquid (liquidate-solid). In our country the cane trash and the bunch of rice are used for their production. In this work agroindustrial residuals of good readiness and low cost were used in the market; sawdust of white pine and bran brewer, substratums that besides serving themselves from support to the mushroom for their growth, they contribute the necessary nutrients for their appropriate development. These residual ones constitute potential sources of contamination for what their use preserves the integrity of the environment. They were carried out the tests of quality: Purity microbiological (%), Viability for germinative tube (%), Concentration (substratum cells/g) and Antagonism (%). Trichoderma harzianum A-34 increased the conidia count significantly in 29,87% it has more than enough sawdust of white pine and bran brewer with regard to Trichoderma harzianum A-34 taken place in cane trash enriched with bunch of rice. You conclude that these substratums can be employees as an alternative for the massive production of Trichoderma harzianum A-34.