Eficiência do Bacillus amyloliquefaciens na promoção de crescimento e produtividade no milho

Abstract

The use of growth promoting bacteria is a technique that is frequently used in the Mato Grosso crop. The objective of this study was to evaluate the efficiency of Grampositive Bacillus amyloliquefaciens bacteria at different application rates by inoculating seeds on the maize crop productivity components. The experiment was conducted in the Saffinha 2017 in Sinop - MT, in a clay - textured Oxisol, cultivated about 15 years ago, under Cerrado biome. The average annual temperature ranges from 20°C to 38°C, averaging 26°C. The experiment was carried out in a randomized complete block design (DBC) and six doses of Bacillus amyloliquefaciens (BAL) (0,0; 2,0; 4,0; 6,0; 8,0; 10,0 kg seed-1) applied via seed inoculation, with 6 replicates in the field. The pl ots were composed of 8 sowing lines, with spacing of 0,5 m between rows, and 7 meters of length, totaling 28 m². It was concluded that at a dose of 10,0 ml kg-1 seed, a statistically significant result was obtained, with the highest ear diameter and higher productivity, evidencing that the product at that dosage can increase the productivity of the culture.