The aim of the present study was to determine the effect of three levels of the sowing density: 500, 670 and 750 kernels per square meter and two herbicides: Arleon 75 WP and Puma Super 069 EW and harrowing on the spring triticale yield and spring triticale quality. The kernel yield did not depend on the sowing density, harrowing and the herbicides used to control weeds. Total protein yield and level in kernels increased with an increasing sowing density while the starch content decreased only with the highest density (750 kernels·m^-2). The recommended dose of Arelon 75 WP and Puma Super 069 EW increased the total protein content and decreased the starch level in kernels. It was observed that half of the recommended dose of Arelon 75 WP combined with harrowing also decreased the starch content. Increasing the sowing density, although it did not increase significantly the yield of kernels, is favourable as it increases the content of protein in kernels and so kernel yield. Recommended herbicide doses of Arelon 75 WP and Puma Super 069 EW can be used in weed control on spring triticale plantations without a decrease in the yield of kernel and protein. Reducing the recommended herbicide doses by half combined with harrowing did not change significantly the kernel yield and quality either. The herbicides researched can be used interchangeably in weed control in spring triticale.

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