Урожайність сучасних сортів і гібридів жита озимого залежно від фону живлення та норм висіву

Abstract

In the three-year researches (2008-2010) in the Plant Production and Variety Investigation laboratory of Plant Production Institute nd. a. V.Ya. Yuryev, NAAS the study of modern varieties reaction and hybrids of winter rye on the fertilizer background and sowing rate on winter rape forecrop are carried out. It is established that to obtain a high and stable level of productivity of winter rye it is necessary to sow varieties Hamarka and Kharkovskoye 98 at sowing rate of 4,0 mln. seeds / ha viable seeds (4,98 and 4,81 t/ha, accordingly, to the varieties), hybrid Yuryevets F₁ - 3,0 mln. seeds / ha (5,20 t/ha), and hybrid Harley F₁ - 5,0 mln. seeds / ha (5,40 t/ha) with obligatory application of a full doze of mineral fertilizers ‑ N₆₀P₆₀K₆₀