Cool idea, love the sprites, however there should be a limit on how much fertilizer you can use. rn i think the best strat is to spam the fertilizer without even using the day/night machine which is otherwise more interseting.
I did the math: each seed cost 4/6 = 0.66 gold, each fertilizer 3 gold, each crop grown this way makes 3 berries which sell at 6/4 = 1.5 gold. So each crop brings 1.5*3 - 0.66 - 3 = 0.83 gold. A rotation like that on 3 crops takes 6 seconds, so 3*0.83/6 = 0.41 gold/sec
On the other hand a "normal" rotation on 3 crops takes 30 seconds and makes 1.5*3 - 0.66 = 3.83 gold per crop for a yield of 3*3.83/30 = 0.38 gold/sec
Was fun tho ^^ cool game