Virginia Cooperative Extension has several publications for Commercial Horticulture:

The Basics of Fertilizer Calculations for Greenhouse Crops (.pdf)

Dealing with the High Cost of Energy for Greenhouse Operations (.pdf)

Selecting and Using Plant Growth Regulators on Floricultural Crops (.pdf)

Using Plant Growth Regulators on Containerized Herbaceous Perennials (.pdf)

Resources for Greenhouse and Nursery Operations and Operators (.pdf)

 

We also provide Private Pesticide Applicator Recertification!