Most Important thing is to start with a real good organic soil base with the garden watered every day, that what I've found as these avo's have really kicked off.
All organic waste go's into that garden and I waste nothing.
Next thing is to place the seed in the correct position so when it shoots it can grow straight up and out with out having to do a 90 deg turn to reach sun light.
Hope that makes sense, have a look at the seed and place it in a vertical planting position.