Blu N

The preparation Blu N is a biological preparation containing the active substance Methylobacterium symbioticum at a concentration of 3 x 107 CFU/g. The preparation is used in agriculture, including retail sales to the public. It is used to treat various crops at specific stages of their development. For corn, the preparation is applied in the 4–8 leaf stage (BBCH 14-18). For cereal crops, application begins at the 3–6 leaf stage (BBCH 13-16), with the optimal period being mid-tillering to the beginning of flowering (BBCH 25-61). Vegetable crops are treated starting from the 2 true leaf stage (BBCH 12), with the optimal period being from the 5-leaf stage to the beginning of flowering (BBCH 15-61). Winter rapeseed is treated after the resumption of spring vegetation, at the stem growth stage before bud formation (BBCH 30-50). For sunflower, the preparation is applied from the 4-leaf stage until the beginning of "zirочка" formation (BBCH 14-51), for soybean — from the 3 trifoliate leaf stage until the beginning of budding (BBCH 13-51). Sugar beet is treated from the 4-leaf stage until complete row closure (BBCH 14-39), and potato — in the 5-leaf stage until the beginning of flowering (BBCH 15-61). The dosage is 333 g/ha (3.33 g/100 m2), single application.