Spread Fertilizer Faster (Grand Bazaar)

Is there a way to make fertilizing crops faster later on in the game? I'm taking it slow, just started upgrading my tools and it's so nice to get done with watering etc. so much faster. But it still takes so long to spread the fertilizer. Is there some upgrade for this, or am I stuck with only 3 squares at a time forever? Or is it something with the double jump? I haven't bought it yet.