Biosolids with Lime Addition, Solarized and Rich in Production Brachiaria Brizantha Cv. Marandu.

This study was aimed at evaluating the use of biosolids disinfected by the hydrated lime and solarization combination as an auxiliary source or main provider of nutrients for the initial establishment of Brachiaria brizantha cv. Marandu. The experiment was conducted in a greenhouse at the Federal University of Uberlandia, Campus Umuarama, with sowing brachiaria in pots of 5 kg of soil (Oxisols), with the adoption of a randomized block design, with 4 blocks and 10 treatments with two plants per plot, and the conduct of 4 plants per pot. The treatments were as follows: mineral fertilizer 03-30-10 (120 kg ha-1 P2O5); biosolids (60 kg ha-1 N); biosolids (48 kg ha-1 N) + mineral fertilizer 03-30-10 (120 kg ha-1 P2O5); biosolids (60 kg ha-1 N) + plaster agricultural (40 kg ha-1 S); biosolids (60 kg ha-1 N) + magnesite (30 kg ha-1 Mg); biosolids (60 kg ha-1 N) + simple superphosphate (120 kg ha-1 P2O5); biosolids (60 kg ha-1 N) + verdigris (60 kg ha-1 K2O); biosolids (60 kg ha-1 N) + plaster agricultural (40 kg ha-1 S) + magnesite (30 kg ha-1 Mg) + simple superphosphste (120 kg ha-1 P2O5) + verdigris (60 kg ha-1 K2O); organomineral fertilizer 05-24-08 (120 kg ha-1 P2O5); control treatment (without addition of nutrient sources). The experiment was conducted for 60 days from sowing. The variables analyzed were number of tillers, average plant height, chlorophyll a and b; fresh pasta; dry weight; leaf area; nutrient content in the soil after the experiment; content of foliar nutrients. Based on the results it was concluded that the limed biosolids presents with lower cost alternative for completion in soil fertilization for Brachiaria brizantha cv. Marandu; moreover, it shows how great concealer ground with quick reaction power.