Biohydrogen production in agricultural enterprises is an urgent matter. It is appropriate to utilize two methods of biohydrogen production: a thermochemical method – from crop-based biomass and anaerobic digestion (fermentation) method – from animal-based biomass.. It is appropriate to use gasifiers for the thermochemical method and biore-actors for fermentation method. The theoretical potential of biohydrogen was established with due regard to the amount of biomass which is necessary for utilization in livestock agriculture, for fields fertilization as well as with the consideration of the coefficients of concordance with hydrogen equivalent and loss factor under biohydrogen production. The theoretical potential of biohydrogen from crop-based biomass in Ukraine amounts to 77 billion m3, during the period of three years (on average 25.6 billion m3 per year).

It is developed the growing technology model, which provides for the growing pea varieties under compatible presowing seeds treatment by bacterial preparations Ryzohumin and Polimiksobakteryn, and triplex using of foliar fertilizing by complex fertilizers KODA 7-21-7 in the phases of budding and green beans and KODA Complex in the phase of pouring seeds in the background of fertilization N45P60K60, which provided grain yield formation on the level of 4.01 t/ha in class Tsarevych and 4.31 t/ha in class Ulus, where collection of crude protein was 1.02 t/ha and 1.07 t/ha. It is established the dependence between the pea yield size and weather conditions during the growing period. It is created the optimal conditions of mineral nutrition for pea plants due to using of bacterial fertilizers and foliar fertilizers, which promoted not only great yield formation, but also significantly increasing of biochemical indexes and, as a result – the increasing of crude protein content till 24.81-25.44% and its collection – till 1.02-1.07 t/ha.

The paper analyzes volunteering as a factor in the self-organization of society in period Joint Forces Operation, a new social need. It is proved that during the period of democratic transit the volunteer movement became a factor of civic activism. It is emphasized that volunteering has become a political institution of Ukrainian society, an element of the political system. Volunteering contributes to the transformation of civil society. Volunteering acquired the status of a political institution, due to its great importance in political life and significant activity in the political sphere; at present it belongs to social and political movements, which in a certain sense can be considered as groups of political pressure; partnership with the state in solving important matters. A weighty function of volunteering was the compensatory replacement of the state in the logistic support of the front line during the Russian aggression against Ukraine. In volunteer activities, significant financial and material resources were involved, it acquired a mobilization character. The number of volunteers and volunteer organizations has increased many times. Volunteering has become a nationwide cause. Experts in information technology, mechanics, weapons and military equipment specialists are involved in it. The motivation for volunteering has become patriotic, civil and moral.

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The possibilities of using resources of the plant biomass as an effective renewable energy source are analyzed. The issues of the current state of corn for grain production, peculiarities of its cultivation and the possibility of using agrarian residues in corn production to produce energy are considered in the study.