Economic and bio-energetic efficiency of spring rapeseed crop growing of hybrid Yura

Abstract

The highest profit was obtained by applying fertilizer (N90P75K120) - 4828
UAH / ha for a profitability of 102%, the lowest - at the lowest dose of fertilizers
N45P30K45 - 2008 UAH / ha, while the profitability was 63%. In terms of fertilizer
N60P45K60 profit was 3616 UAH / ha with a profitability of 97%, and the value of
gross output amounted to 7336 UAH.
The use of fertilizer borers N120P75K120 slightly increased the cost compared
to the option with the highest profit - from 4720 to 4947 UAH / ha, but the profitability
dropped to 71%.
Thus, according to economic indicators of profit per hectare and profitability,
the best result was the fertilizer variant N90P75K120, where the value of gross output
was UAH 9548. A further increase in fertilizer rates led to a decrease in these indicators
and in this case it was not economically feasible.
The lowest energy consumption was in the experiment without fertilizer
application (28952 MJ), while the energy efficiency ratio was 4.99. At the same time,
the highest energy consumption was characterized by the use of mineral fertilizers in
the amount of N90P75K120 and nitrogen feed (30 kg / ha) - 56095 MJ, with an energy
efficiency ratio of 2.96. With further increase in fertilizer rates, the energy output with
the harvest decreased.
Hybrid Yura is recommended to grow according to the technology, which
provides for the introduction of mineral fertilizers at the rate of N90P75K120 kg / ha
d. P. For the seed rate of 1.0 million similar seeds. It is proved that such a fertilizer rate
is economically advantageous and expedient from the standpoint of economic and
energy efficiency under the given growing conditions.