FODDER CHARACTERISTICS OF THE GREEN MASS OF FIELD PEAS OF THE BEAUTIFUL VARIETY, DEPENDING ON WEATHER CONDITIONS, WHEN CULTIVATED IN THE VOLGA-VYATKA REGION

The article presents the results of research conducted in the Nizhny Novgorod Research Institute (currently a division of Nizhny Novgorod GATU) in 2017-2021..according to the yield of the green mass and its chemical composition, field grade peas are Beautiful in a competitive variety test (CSI). The highest content of crude protein in the vegetative part of peas was noted in 2017, 2019 and 2021 with sufficient moisture during the flowering-maturation period - 21.80; 20.84 and 20.10%, respectively (GTC, respectively, by year, amounted to 1.6; 1.3; 1.6). It was found that the amount of precipitation affects the content of crude fat, crude fiber and crude ash in the green mass of field peas: in 2017 and 2021, with good moisture content (GTC during the growing season was 1.6 and 1.8, respectively, with an average annual value of GTC-1.24), the content of crude fat was 3.41 and 3.56%, crude fiber 19.75 and 18.70%, crude ash 8.70 and 6.67%. In dry humid years, the content of these indicators of the quality of the chemical composition of the green mass of peas (pellets) decreased. Potassium content (r = from -0.04 to -0.50 (except 2021)) and phosphorus (r = from -0.33 to -0.99 (except 2021)) on the absolutely dry substance of the green mass of peas are inversely correlated with the content of calcium in it. When analyzing the variability of the yield of the green mass of field peas of the Beautiful variety over the years, the dependence of this indicator on the weather of observations during its vegetation period was established: in arid vegetation conditions, the coefficient of variation was 4.0 and 9.0%, respectively; in favorable weather conditions, the conditions of pea vegetation, this coefficient of variation was higher (10.0-13.0%) - the average degree of influence of weather conditions on the yield of its green mass has been revealed. At the same time, the yield level of the green mass of field peas of the Krasivy variety in arid conditions was 13.4 (2018) and 14.2 (2019) t/ha (with NSR 05 - 0.27); with good moisture supply - 23.5 (2017), 25.9 (2020) and 17.7 (2021) t/ha (at NSR 05- 0.27). The chemical composition of the green mass of field peas depends on the weather conditions of the vegetation: the content of crude protein varies to an average degree (coefficient of variation (Vc) was the range 9.0-16.0%); the content of crude fat varies to an average degree (Vc-10.0-22.0%); the crude fiber content varies to an average degree ((Vc-13.0-19.0%). The content of mineral elements (potassium, phosphorus, calcium) in the green mass of field peas mainly slightly depends on the weather conditions of the growing season (Vc no more than 10%).