Subsoiling shatters the soil compaction caused be traffic from previous crops as well as heavy amounts of water. If the soil is not subsoiled the tree roots won't develop properly and the trees will never grow up to be large, healthy and productive. If the ground use to have fruit trees before and the planting is a renewal, after subsoiling the ground is fumigated. If it is not fumigated some of the micro-organism living in the soil will not allow the young apple trees to grow properly. Finally he soil is disked and smoothed out, staked and ready to be planted.
Planting is done with a tractor pulled planted that gouges a deep trench in the ground.
People on the planter place a tree into the trench and as the tractor moves forward the the trench is sealed by the rear of the planter. As soon as trees are planted, the irrigation system is added. Sometimes the system as added in along with the trees during planting. After the trees are in the ground they are pruned back and taken care of for two r three years before they produce a crop. To get quality fruit year after year many things have to be done throughout the year.