The research was conducted in tdisk 2011-2015 in Kirov region.Three-time cutting use of trefoil-timothy mix while harvesting at branching, bud formation and flowering stages of trefoil development had been planned.Possibility of durable (up to 5 years) growing of this grass mixture has been established.
The productivity of lotus-timothy grass mixture depended largely on weather conditions.Under favorable weather conditions of 2012 the productivity of lotus-timothy grass mixture reached 115.4 GJ/ha; under dry conditions of 2013 it was lower than 41.
8 GJ/ha.The best mode of grass mixture use is two-cutting at the first and the second hay cutting harvesting at lotus flowering stage when output of exchangeable energy equals to 65.3 GJ/ha in average for 2.
5 years of life; as a variant - the first hay cutting - at flowering stage, the second one - at budding stage - 69.5 GJ/ha.Productivity of grass mixture was significantly lower at early harvesting of the first and the second hay cutting; the same is true for three-cutting use in some years.
Meadow timothy as a moisture-loving crop fell out of the grass stand by the fourth year of life because of drought in all variants of the experiment.Infestation of crops with dandelion Canvas Wall Art 3 was marked since the fourth year of life in all variants of the experiment; its portion in the yield increased by the fifth year of life; the least infestation was noted in variants with two-cutting mode use.