Gather some horse manure, fresh from the stables or from a paddock where horses are kept. The easiest way to collect it is with a spade and wheelbarrow.
Put a few stones or pieces of gravel into a flower pot and add a few lumps of manure on top until the pot is approximately a quarter full. There is no need to alter the manure in any way before adding it to the pot; just add in the lumps as they are found.
Hold the orchid bulb over the manure-filled pot so the roots are hanging down, and continue to add lumps of manure all around. As a result, the roots will lay within the middle of the manure with the bulb exposed on top.
Add a layer of mulch about 1 inch thick made from moss or tree bark. The mulch prevents weeds and maintains a good temperature in the pot.
Water the bulb very gently, ensuring the water drains out completely. Orchids do not thrive when they sit in a puddle of water, so don't place a container under the flower pot to catch the water. Water gently every day so the manure is always damp.