2018,    N 3 (33)    

PLANT GROWING

Biyanova O., Renyov E.

Productivity of pea-barley agrophytocenoses in dependence on variety selection and their correlation while sowing

The studies were carried out in a three-factor field experiment laid down on the method of split plots in four-fold replication with a systematic arrangement of options in 2014-2016 years on the training-experimental field of the Perm State Agro-Technological University. It was determined in the research that the maximum yield of 3.91 ton per hectare is formed with pea-barley mixes with VELVET variety. Among the barley varieties studied, the mixes with ECOLOG variety provided the highest yield with an average of 3.76 ton per hectare which is for 0.10 ton per hectare higher than at using the mixes with RODNIK pea variety (HCP05=0.03 ton per hectare). For the agrophytocenoses with AGROINTEL pea variety it is preferable to use ECOLOG barley variety. The productivity amounted to 3.50 ton per hectare that is significantly for 0.21 ton per hectare higher than for agrophytocenoses with RODNIK PRIKAM’YA barley variety but for agrophytocenoses with VELVET pea variety it is better to use RODNIK PRIKAM’YA barley variety yielding 4.02 ton per hectare that is 0.22 ton per hectare higher than that of the mix with ECOLOG barley variety. For the agrophytocenoses of AGROINTEL pea variety and ECOLOG barley variety the optimal ratio at sowing is 37.5 + 87.5 % - the productivity was 3.84 ton per hectare, and for VELVET pea variety and RODNIK PRIKAM’YA barley variety the optimum was found to have a wider range of sowing rates of 37.5 + 87.5 % and 50 + 87.5 % and the yield was 4,03 and 4.09 ton per hectare respectively.

Keywords: PEA-BARLEY AGROPHYTOCENOSES, MIXED SOWING, YIELD, VARIETY SELECTION, CORRELATION OF COMPONENTS AT SOWING, FEEDING UNIT, DIGESTIBLE PROTEIN