Fertilized Dirt is a small mod that adds three farmland dirt tiers for speeding up crop growth.

Fertilized Dirt Tier 1: gives plants 50% faster growth.
Fertilized Dirt Tier 2: gives plants 70% faster growth.
Fertilized Dirt Tier 3: gives plants 100% faster growth and does not need water to stay moist.
Fertilized Dirt blocks do not turn back into dirt when jumped on.
Fertilized Dirt blocks do not disappear or turn into normal dirt when there is no water nearby.

Tier 1:

Place 1 Dirt in the center of the crafting table. Place 8 Bone Meal in each of the 8 surrounding slots. Total cost: 64 Bone Meal.

Tier 2:

Place 1 Fertilized Dirt Tier 1 in the center of the crafting table. Place 16 Bone Meal in each of the 8 surrounding slots. Total cost: 128 Bone Meal.

Tier 3:

Place 1 Fertilized Dirt Tier 2 in the center of the crafting table. Place 32 Bone Meal in each of the 8 surrounding slots. Total cost: 256 Bone Meal.

Tier 1 and Tier 2 need to be wet in order to grow plants. Place water nearby to hydrate them. Without water, stay as Fertilized Dirt, and will not turn into normal dirt, but crops will not grow properly until the block is hydrated again.

Tier 3 is always treated as moist, so crops can grow without nearby water.

Place the Fertilized Dirt like farmland, then plant crops on top of it. The block will automatically give extra random growth ticks to the plant above it based on its tier.

Recommended: Install JEI to see the custom recipes in-game.