Diagnóstico preliminar da qualidade dos produtos microbianos multiplicados em sistema On Farm em propriedades do Norte do estado de Mato-Grosso

Abstract

The government together with the private sector in Brazil has encouraged conservationist practices in agriculture through programs to promote and produce bioinputs for agribusiness. Brazilian farmers, as a way of adhering to such demands to reduce costs, recently in the country, a practice known as On Farm multiplication of microorganisms has gained strength. This practice has as its principle the production of fungi or bacteria inside the rural property simulating a biofactory of microbial inputs. However, in most cases, sanitary production standards are neglected in the properties that adhere to On Farm, in addition, the inputs used for multiplication often do not offer quality, influencing the final product either due to contaminates or the absence of the target microorganism. This fact, in addition to not contributing to the field, can harm human beings who come into contact with the contaminated product. In this sense, this work was conceived in order to evaluate the quality of microbial products multiplied in properties in the north of the state of Mato-Grosso. To this end, 74 samples of on-farm products with various microorganisms were received for one year, namely: Bacillus thuringiensis, Bacillus subtilis, Bacillus amyloliquefaciens, Chromobacterium subtsugae, Bacillus pumilus, Pseudomonas spp, Trichoderma harzianum and Azospirillum. After the analyzes only two samples out of the 74 were pure. Thus, the results obtained demonstrate that there is still much to be improved in propertiesthat opted to adhere to On Farm.