Although some roots will penetrate the bag, most root growth is restricted to inside the bag. Bagged trees can be dug at harvest by two people with long-nose shovels. Drip irrigation is best for watering trees grown in root control bags since the frequency of watering is more important than quantity. Root bag plantings involve higher front-end costs than balled and burlapped trees because of drip irrigation materials and installation, bags, and labor. Can use rows as close as 8 feet apart, and trees spaced from 3 to 5 feet within the rows.
Most nurseries use greater distances.
Green manure crop can be cut several times during growing season and cuttings left on top of soil. Fertilizer recommendations are tough to calculate. Ask CSU for recommendations on green manure for planting and plowing under. In autumn, add Di-ammonium phosphate for root system and plow green manure under. In spring, level, disc, and rototill if cloddy, then plant.