Here is the full list of all 40 Sakuna: Of Rice and Ruin achievements.
Raise your rice level to 50.
Harvest over 500 rice plants at once.
Achieve an above-standard aesthetic when harvesting.
Clear the lowest floor of the Amagaeshi Shrine.
Achieve an above-standard taste, stickiness, and hardness when harvesting.
Create fertilizer by throwing in over 100 materials.
Clear the aphid invasion.
Deal over 10,000 damage with one attack.
Pray for every type of weather.
Complete the game.
Achieve an above-standard aroma when harvesting.
Collect all agricultural scrolls.
Create 20 kinds of tools at the forge.
Collect all combat scrolls.
Explore every last inch of Hinoe Island.
Trade 1,000 ears with the capital.
Gather every animal at your home.
Create 10 kinds of garments or headgear at the loom.
Gather from every gathering spot on the island.
Rest on the porch in each of the four seasons.
Release 30 hidden powers from equipment.
Become fully proficient in one fighting skill.
Eat 50 different types of food.
Have a dinner comprised of 5 desserts.
Have a dinner comprised of 5 types of alcohol.
Attempt to have a dinner comprised entirely of water.
Have a dinner comprised of 5 rice dishes.
Talk to someone while carrying the manure pail.
Debuff an already-debuffed enemy with a raiment skill.
Practice in the training hall 10 times.
Climb to the highest roof of the tallest house.
Achieve an above-standard yield when harvesting.
Achieve a crash combo of 5.
Achieve a crash combo of 3.
Create white rice with the mortar and pestle.
Successfully parry an enemy attack 30 times.
Swing behind an enemy with the divine raiment 100 times.
Crash 5 enemies together in one fell swoop.
Swing behind an enemy during an aerial combo twice.
Have a dinner comprised of all 5 types of courses.