Layering practices Demonstrate how to layer various types of plant materials. Explain insect and disease prevention and control. Guidelines Develop guidelines for insect and disease control. Irrigation Explain the importance of irrigation. Fertilization Explain the importance of fertilization.
Temperature Explain the importance of temperature.
Humidity Explain the importance of humidity. From seed to tissue culture. Practical woody plant propagation for nursery growers. Seeds of woody plants in the United States. Forest Service, U.S. Department of Agriculture.