Effect of fertilizer and cultivation systems and herbicide application on soil biological activity under spring barley cultivation and its yield

The results of the research devoted to the change of the biological composition of the soil under the conditions of activation of microbiological vital activity and increase in the number of earthworms in the technology of spring barley cultivation are presented. It was found that the organic system of growing crops against the background of manure, cereal straw and green manure in comparison with the organo-mineral system obtained a positive dynamics of decomposition of linen tissue and the development of earthworms in the soil.The highest grain yield was formed by agrocenosis of spring barley with the introduction of Lancelot 450 WG – 0.033 kg·ha–1 + Axial 50 EC – 1 dm3·ha–1 (tube exit phase) – 4900 kg·ha–1 and 4700 kg·ha–1 for organo-mineral and organic fertilizer systems in accordance.

Agroenergy efficiency of technologies for creating and using of long-year haymaking

High rates of recoupment of total costs by collecting exchange energy were revealed in long-term haymaking (75 years of life) for five technological systems of management. The collection of metabolic energy in a technogenic system without fertilization is 24.6 GJ per hectare, taking into account technological losses, in a technogenic-mineral system (N60–180P39K75) it increases by 1.8-2.5 times, in an organic system (20 tons per hectare of manure once every four years) it increases by 1.5 times.