Influence of cultivation technologies on yield of sunflower hybrid triumph

The largest region of sunflower cultivation is the Northern Caucasus. Here about 40 % of this crop sowing areas is concentrated, and 50 % of total seeds yield this region supplies. Increase of productivity of sunflower seeds and improvement of their quality is the important problem of plant-growing. It was the reason to conduct researches on the leached chernozem of Western Ciscaucasus on educational farm "Kuban" in 2003-2005.