The energy balance just does not work with current agricultural paradigm. For example, plowing is really energy intensive and electric tractors just can't carry the required amount of batteries. Too heavy tractors compact the earth and sink in bad weather conditions.
For electrification to really proceed in ag, we need a revolution in the paradigm, something that removes most of the energy heavy processes.
JCB came to the conclusion there was no future in EV tractors and earth movers and went all-in on hydrogen ICE instead. We will shortly see if they were correct.