Influence of cultivation methods on the premier cultivar of Hungarian clover yield in the forest-steppe of Western Siberia

Abstract

Studies have been carried out on the influence of cultivation methods on the green mass yield and the herbage structure of the perennial fodder plant - Premier cultivar of Hungarian clover in the forest-steppe of Western Siberia. A three-factor experience was laid out for the study. The effect of the timing of sowing spring oats under a cover (II ten-day period of May) and summer coverless oats (II ten-day period of July), sowing methods - row (15 cm) and wide-row (60 cm) and two rates of seeding - 1 and 2 million germinated seeds per 1 ha was studied. It is shown that in the second year of life, clover does not yet form an economically significant level of yield of aboveground mass due to biological features. At the same time, this is the year when the influence of different cultivation methods can be traced. The best result was obtained when sowing in the spring in a row - 35 cwt/ ha of dry weight. In the transition of plants to the adult generative state, starting from the third year, an increase in the yield in all variants of the experiment to 80-100 c/ha due to the increase in height and density of the most productive generative shoots was recorded. The intensity of shoot formation differed by variants. The highest was noted on low-productive with the lowest number of generative shoots of the second year - summer wide-row crops. The ability of Hungarian clover to self-regulate the density of shoots depending on the feeding area was noted. As a result, by the fourth year of life, differences in herbage yield between spring and summer sowing dates, low and high (1 and 2 million pcs/ha) seeding rates, row and wide-row sowing methods were leveled.