Farm animals now have a small chance to fertilize a crop field when walking over the crop tile.

How It Works
Animals walking on your farm have a chance each second to fertilize the soil tile they are standing on and the tiles immediately surrounding them.
The fertilizer tier depends on the animal type, and higher friendship increases the chance.

Fertilizer Tiers
Basic Fertilizer→ Chickens, Ducks
Quality Fertilizer→ Cows, Goats
Deluxe Fertilizer→ Sheep, Pigs, Rabbits, Ostriches, Dinosaurs

For similar overview, FAQs and config explanation check in-game GMDF documentation.

Installation :

Download latest mod file
e.g. "AnimalsFertilizeCrops1.0.0.zip"
Extract the contents of the mod file to your Stardew Valley mods folder
e.g. "C:\Program Files (x86)\Steam\SteamApps\common\Stardew Valley\Mods\"
Launch Stardew Valley using SMAPI

Compatibility :

Tested on Stardew Valley 1.6.15 and SMAPI 4.5.1
Not tested on Android yet

Source Code : Github
If this mods helps you, please consider donating on Ko-fi

Animals Fertilize Crops