Институт по земеделие - Карнобат, Карнобат, България
Резюме
The study was conducted in the experimental field of the Institute of Agriculture -
Karnobat in the period 2015 - 2017, with the Millennium and Population rye, after
the predecessor peas - sunflower mixture. The experience includes 20 variants - 5
sowing and 4 fertilizer norms. The aim is to study the impact of sowing norms and
fertilization on the productivity of both rye varieties. In addition to the accepted
optimal norm (500 germinated seeds), there are 4 more seeded norms - 550,
600, 650 and 700 germinated seeds per m2. As a result of soil and phosphorus
fertilization, unilateral nitrogen fertilization was applied to all sowing norms N0
(without fertilizing), N4 (4 kg / da N), N8 (8 kg / da N), N12 (12 kg / da active
substance nitrogen). It was found that in all sowing and fertilizing norms the yield
of rye Millennium is the highest at С5Т3 - 442,33 kg / da and the lowest at С1Т0.
In Population Rye the highest yield was obtained at С2Т2 - 454.33 kg / da, and the
lowest at С4Т0 - 221 kg / da. Significant influence on the yield of both types of rye is
the year followed by fertilization and sowing standards, as the Millennium variety
appears to be more sensitive to nitrogen fertilization.
Key words: Productivity, Rye, Seed and fertilizer rate
