Changes On Soil Microbiota Induced By The Use Of Commercial Products And The Incorporation Of Plant Materials

• Published in: Caatinga 2023-06, Vol.36 (2), p.300-309
• Main Authors: Borges, Darlan F., Nogueira, Geovane de A., Cruz, Gisellya de A., Silva, Shamyra G. de A., da Silva, Washington L., Ambrósio, Márcia M. de Q.
• Format: Article
• Language: English
• Subjects: AGRICULTURE, DAIRY & ANIMAL SCIENCE; AGRONOMY; FISHERIES; FOOD SCIENCE & TECHNOLOGY; FORESTRY; VETERINARY SCIENCES
• ISSN: 0100-316X; 1983-2125; 1983-2125
• DOI: 10.1590/1983-21252023v36n207rc

ABSTRACT Growers have adopted monoculture to maintain the high melon (Cucumis melo L.) production demand in the Northeastern region of Brazil. This cultivating practice culminates in up to three crop cycles per year being used in the same growing area. The main objective of this study was to evaluate if the incorporation of plant material used with polyethylene mulch and or in association with commercial soil amendment products can help to condition an environment that is beneficial to soil microbial communities. Two identical greenhouse experiments were conducted using a completely randomized design with seven treatments and seven replications. The treatments were: (C) – Control, (M) - polyethylene mulch, (C+M) - incorporation of Crotalaria juncea L. + polyethylene mulch, (P+M) - incorporation of Pennisetum glaucum L. + polyethylene mulch, (M+CS) - polyethylene mulch + (Compost-Aid® + Soil-Set®, trade names of products produced by Alltech Crop Science), (C+M+CS) - incorporation of C. juncea L. + polyethylene mulch + (Compost-Aid® + Soil-Set®), and (P+M+CS) - incorporation of P. glaucum L. + polyethylene mulch + (Compost-Aid® + Soil-Set®). To quantify the target soil microbiota (fungi, bacteria, sporulating bacteria, and actinomycetes), isolations were attempted on selective culture media specific for each group of microorganisms. The incorporation of P. glaucum together with the use of polyethylene mulch and commercial products (Compost-Aid® and Soil-Set®), (P+M+CS), increased the total fungal population by 183%, total bacteria by 55%, sporulating bacteria by 21%, and actinomycetes by 146% in relation to the control treatment. RESUMO Os produtores há anos adotam a monocultura para manter a demanda de produção de melão alto (Cucumis melo L.) na região Nordeste do Brasil. Esta estratégia de cultivo é usada em até três ciclos por ano. O objetivo principal deste estudo foi avaliar se a incorporação de material vegetal utilizado com mulch de polietileno e/ou em associação com produtos corretivos de solo pode condicionar um ambiente benéfico para as comunidades microbianas do solo. Dois experimentos idênticos em casa de vegetação foram conduzidos em um delineamento inteiramente casualizado com sete tratamentos e sete repetições. Os tratamentos foram: (C) – Controle, (M) - cobertura de polietileno, (C+M) - incorporação de Crotalaria juncea L. + cobertura de polietileno, (P+M) - incorporação de Pennisetum glaucum L. + cobertura de polietileno, (M+CS) - cobertura