Desenvolvimento da soja com a incorporação de doses de Lithothamnium ao solo

Abstract

Were evaluated the average production and the foliage mass in the soybean crop (Glycine max L) before incororation the inclusion of an organic nutrition supplement Lithothamnium in the soil (grounded rock in the shape of granules), cultivated in a eutrophic red latosol, in the city of Maringá, northwest of Paraná state, Brazil. It was cropped on 29/10/2017, with a component BrasmaxÍcone IPRO and Ran donmized blocks design (D.B.C) in 20m² areas. Four treatments were apllyied (T1 testemunha: 0,0 kgha-1; T2: 37,19 kgha-1; T3: 49,58 kgha-1 e T4: 61,98 kgha-1) in a Split- Plot system five times. There were 9 lines 5m, spaced in 0,45m and density in about 14 crops m² each plot. Fertilization was apllied during seeding (furrows distribution) in 247,93 kg ha-1 of NPK (2-20-18). Weed and insects control was made by chemical herbicides and insecticides. It was noted the Lithothamnium implementation increased the productivity in 9% and the foliage mass in 7% comparing to the control treatment.