Efecto de inoculación de semilla de canola con Azospirillum brasilense, fertilización nitrogenada y azúcar a la siembra, sobre rendimiento de canola bajo condiciones de riego
DOI:
https://doi.org/10.59741/agraria.v2i3.313Keywords:
Brassica napus L., biofertilizer, vegetal nutrition, nitrogen fertilizationAbstract
The objective of this assay was to evaluate the effect of the inoculation of canola seed with Azospirillum brasilense, plus the application of nitrogen fertilization, and commercial sugar at sowing time, on the yield of canola cultivated under irrigation. The following treatments were applied: a) inoculation of seed with Azospirillum brasilense at sowing time, plus fertilization with 60 kg of N ha-1 during the development of the culture, and b) application of 120 kg of N ha-1 to non-inoculated plants, and the interaction with the levels of 0, 50, 100 and 150 kg ha-1 of commercial sugar. In the same sense, an economic analysis by Turrent graphical method was performed. No significant difference between the treatments with inoculated seed, and seed without inoculation, when no sugar was applied. Nevertheless, when interacting with the different sugar levels, the highest yield was obtained with the application of A. brasilense plus 50 kg ha-1 of sugar, followed by the treatment without inoculation plus 100 kg ha-1 of sugar, with yields of 2,355 and 2,190 kg ha-1, respectively (P<0.05). The use of A. brasilense, plus the application of low levels of chemical N, allowed the same yields to be kept when high amounts of chemical fertilizer are supplied. The economically more viable treatment was to inoculate the seed with A. brasilense, and to apply 60 N units, plus 50 kg ha-1 of sugar.
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