Agro-energy efficiency of improved technologies for the production of pasture fodder in upland meadows of the Central non-Chernozem region

Abstract

Abstract On the basis of a modern method of agro-energy assessment of anthropogenic non-renewable energy sources and natural renewable resources, scientific evidence of the high economic efficiency of green fodder production on cultivated pastures is presented. Two field experiments were carried out to improve the composition of cereal grasses with the participation of domestic zoned varieties of perennial ryegrass and festulolium, as well as similar grass mixtures with the inclusion of legumes: white clover and red clover. The total anthropogenic costs have been determined, the return on their exchange energy in the produced feed was 3-4 times and even 10 times, the role of natural factors in the structure of the obtained exchange energy was established. This serves as a theoretical basis for the indicators of the economic efficiency of cultivated pastures created using resource-saving technologies: mainly due to the long-term use of cereal grasses (for 14 years) or the supply of biological nitrogen on legume and cereal grasses, replacing the use of mineral nitrogen fertilizers at a dose of N126-131 per year (on average for 7 years) on dry meadows of the Non-Chernozem zone.