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