The purpose of the article is to determine the economic and bioenergy efficiency of bioorganic fertilizer based on digestate, taking into account the cost of basic nutrient elements. The article presents calculations of economic indicators of the examined elements of the technology of growing corn for grain and vegetable crops in Ukraine, which indicate that the cultivation of these crops is economically beneficial in all versions. The study found that increasing the economic efficiency of corn production for grain and vegetable crops when applying different norms of fertilizer application is achieved due to the more significant positive impact of yield growth compared to additional costs associated with the use of these agritechnical means, while additional costs caused by the use of fertilizers pay off many times. It is proved that the use of mineral fertilizers and their combination with high norms of bioorganic fertilizer (digestate) for corn and vegetable crops contributes to an increase in yield, and the energy efficiency of this fertilizer is quite high, which indicates the energy saving concerning the studied technology of growing crops. It is advisable to apply such fertilizer norms at which it is possible to obtain the greatest energy output at optimal costs, ensuring compliance with the priority policy of energy saving in agricultural production. The theoretical and practical provisions on the ecological problem (utilization of livestock waste, in particular in the case of pig farms), the energy problem (biogas production in a biogas plant) and the agronomic problem (obtaining organic fertilizer) have been further developed, which ensures an increase in yield and improvement of the quality of agricultural and vegetable crops, that is, makes it possible to obtain high-quality crop and vegetable products during utilization of livestock waste. The proposed approach to the economic assessment of technologies for growing corn for grain and table root crops, depending on the fertilizer application system, makes it conceivable to increase the level of productivity of agricultural and vegetable crops, provided that bioorganic fertilizers are effectively used in modern conditions of a sharp increase in the cost of mineral fertilizers. At the same time, the energy efficiency of growing corn for grain and table root crops depending on the fertilizer system has been determined, which will increase crop yields in the absence of an increase in fertilizer costs.

This paper presents calculations of the economic indicators of the researched elements of the cultivation technology of corn for grain and vegetable crops in Ukraine, which indicate that the cultivation of these crops is cost-effective in all variants of the experiment. The research has established that the increase in the economic efficiency of the production of these crops when applying different rates of fertilizers is achieved due to a more significant positive effect of the increase in productivity compared to additional costs associated with the use of these farming practices, while additional costs caused by the use of fertilizers are paid off many times over. It has been proven that the use of mineral fertilizers and their combination with high rates of bio-organic fertilizer (digestate) when growing agricultural crops helps to increase productivity. There have been further developed theoretical and practical provisions regarding the ecological problem of livestock waste disposal, 162 in particular those of pig farms, and agricultural farms, i.e. the provision of organic fertilizers to ensure the yield increase as well as improvement in the quality of agricultural and vegetable crops, so as to make it possible to obtain high-quality products of plant and vegetable production during livestock waste disposal. The proposed approach to the economic assessment of technologies for growing corn for grain and red beet depending on the fertilization system makes it possible to increase the level of productivity of agricultural and vegetable crops with the effective use of bio-organic fertilizers in the modern conditions of sharp increases in the costs of mineral fertilizers.

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All rights reserved. Printed in the United States of America. No part of this publication may be reproduced, distributed, or transmitted, in any form or by any means, or stored in a data base or retrieval system, without the prior written permission of the publisher. The content and reliability of the articles are the responsibility of the authors. When using and borrowing materials reference to the publication is required. The collection of scientific articles published is the scientific and practical publication, which contains scientific articles of students, graduate students, Candidates and Doctors of Sciences, research workers and practitioners from Europe and Ukraine. The articles contain the study, reflecting the processes and changes in the structure of modern science.