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