Camelina yield and quality response to combined Nitrogen and Sulfur.

Jiang, Y.F., Caldwell, C.D., Falk, K.C., Lada, R.R., and MacDonald, D. (2013). "Camelina yield and quality response to combined Nitrogen and Sulfur.", Agronomy Journal, 105(6), pp. 1847-1852. doi : 10.2134/agronj2013.0240  Access to full text

Abstract

Camelina [Camelina sativa L. Crantz], an oilseed crop in the Brassicaceae family, was field tested at multiple locations in the Maritime Provinces of eastern Canada in 2012 to evaluate the effects of N and S on seed yield, protein content, protein yield, oil content, and fatty acid profile. The experiment was designed as a randomized complete block factorial design with six N rates (20, 40, 80, 120, 160, and 200 kg ha1 N), two S rates (0 and 25 kg ha1 S) and two lines of camelina (CDI005 and CDI007). The application of N increased the seed yield, protein content, protein yield, and percentage of polyunsaturated fatty acids (PUFA); however, N rate was negatively correlated with oil content and resulted in a reduction of monounsaturated fatty acids (MUFA). The optimum N rate for yield ranged from 120 to 160 kg ha1 N. Sulfur affected yield, protein content, protein yield, oil content, percentage of MUFA, and percentage of PUFA only when the N level was sufficient.

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