Published in Scientific Papers. Series A. Agronomy, Vol. LXVII, Issue 1
Written by Petrișoara ȘUVEȚ, Lucian BOTOȘ, Simona NIȚĂ, Ilinca Merima IMBREA, Ștefan Laurențiu BĂTRÎNA, Adrian BORCEAN, Ioana Alina HÎNDA, Florin IMBREA
Rapeseed (Brassica napus) stands as one of the preeminent oil-bearing crops globally, attributable to its elevated seed oil concentration, robust hybrid production capabilities within the extant crop, and its versatile applications. The advent of erucic acid and glucosinolate-free hybrids has significantly broadened the utility of rapeseed-derived cakes and meal, characterized by a substantial protein content ranging from 38% to 41.9%. This study aimed to elucidate the impact of mineral fertilizer type on the protein content of both rapeseed and its resultant meal. Three distinct mineral fertilizers were tested in the experiment: E34 (10:24:0 + 0.1Zn + 0.1Br + 20 SO3), DAP (18:46:0), and the 20:20:0 fertilizer type. The findings unequivocally underscored the discernible impact of fertilizer type on the protein content of rapeseed seeds. Notably, the protein content ranged from 19.80% in the 20:20:0 fertilization variant to 22.04% in the E34 fertilization variant. Similarly, the protein content of the resultant meal exhibited variance, oscillating between 38.07% in the 20:20:0 fertilization variant and 39.81% in the E34 fertilization variant. These outcomes accentuate the pivotal role of mineral fertilization in modulating the nutritional composition of rapeseed and its derivatives.
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