Gerardo (Gerry) Spinelli
![IMG_4246 IMG_4246](http://ucanr.edu/sites/floriculturenursery/files/377036display.jpg)
Production Horticulture Advisor for San Diego County
530-304-3738
Nitrogen and Fertilizer Management
Nitrogen Concentration in Liquid Feed
Nutrition and Fertilizer Workshops - 5 Videos
Liquid Feed Proportioner Calculator Spreadsheet
Download the file here: Injector calculations