INTERACTIVE EFFECTS MODEL OF NITROGEN AND SILICON IN MAIZE QUALITY INDICES
2019
Gabriel CĂBĂROIU | Ciprian RUJESCU | Florin SALA
The purpose of the study was to evaluate the influence of nitrogen (N) and silicon (Si) on quality indices in maize grains, the Lovrin 400 hybrid. Nitrogen (ammonium nitrate) was applied in the range of 0-200 kg ha-1, with the 40 kg variation unit (N0, N40, N80, N120, N160, N200). Silicon (silicic acid) was applied foliar (0, 0.5%, 1.0%, 1.5%, 2.0%) in the main growth stage I: Leaf development BBCH Code, at 4 leaves, 6-8 leaves and 10 leaves, respectively.The combination of the two treatments resulted in 30 variants, in three repetitions. Corn grain quality indices such as starch (ST), protein (PRO), fat (FAT), fiber (FIB), ash (ASH) and moisture (MSTR) have been evaluated. Determinations were made using non-destructive NIR methods. Based on a general model of the type f = (N, Si), the PRO index indicated the strongest correlation (R2=0.800, with p
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