Magnesium fertilization, broth quality and sugar production by cane varieties RB867515 and RB92579

The nutritional status, juice quality and sugar production of sugarcane varieties RB867515 RB92579 were evaluated in the cane-plant cycle, as a function magnesium doses applied at bottom planting furrow. study, installed soil with Mg content equal to 0.61 cmolc dm-3, was conducted an experimental design randomized blocks four replications. study 2 x 5 factorial: two varieties: RB92579, five magnesium: zero, 60, 120, 180 240 kg per hectare, using oxide source Mg. commercial magnesium. plots consisted seven furrows meters length 1.0 meter spacing. All received phosphorus potassium fertilization dose 100 150 no nitrogen fertilization. In maximum growth phase sugarcane, status evaluated. About year after planting, when cane mature, plant harvested assess varieties. There effect on any analyzed variables. Regarding nutrient leaf +3, deficiency found only for potassium, copper manganese. had average productivity industrializable stalks sugars, respectively 96.0 13.7 tons surpassing by about 10%. results this confirm reports other researchers who mention that contents order 0.50 dm-3 are sufficient adequate nutrition sugarcane.