Moisture Gel
Work it into tilled soil and it holds water: half the time the tile is still damp the next morning. Lasts until the harvest. Makes 5.
Crafting
Silica Shard, 
Sap → makes 5
Work it into tilled soil and it holds water: half the time the tile is still damp the next morning. Lasts until the harvest. Makes 5.
Silica Shard, Sap → makes 5