NEMATICIDAS ASSOCIADOS A CAMA DE FRANGO NO CONTROLE DE NEMATOIDES NA SOJA E MILHO SAFRINHA

Abstract

Alternative management measures have been used to reduce nematode population levels in affected areas. In this perspective, the objective was to evaluate the efficiency of biological control agents applied via seed treatment, associated with litter poltry, in the control of Pratylenchus brachyurus and Heterodera glycines in soybeans and second crop corn, in a naturally infested field. The experiment was conducted in the 2018/19 harvest, in the municipality of Ipameri - GO, with 10 treatments and 4 repetitions, being: T1- Control, T2- Litter poltry, T3- Purpureocillium lilacinum + Trichoderma harzianum, T4- Bacillus subtilis + B. licheniformis, T5- Pochonia chlamydosporia, T6- Abamectina, T7- P. lilacinum + T. harzianum + Litter poltry, T8- B. subtilis + B. licheniformis + Litter poltry, T9- P. chlamydosporia + Litter poltry, T10- Abamectina + Litter poltry. The litter poltry was added to the soil 10 days before planting. In the soybean culture at 45 and 90 DAS, the root fresh mass (MFR), nematological parameters and productivity were evaluated. In corn, only nematological parameters were evaluated at 60 DAS. The treatments using P. lilacinum + T. harzianum and B. subtillis + B. licheniformes increased the MFR and reduced the number of P. brachurus and H. glycines. P. chlamydosporia promoted an increase in productivity in soybeans, with production enhanced by the association of litter poltry with P. chlamydosporia.