After spending a number of years evaluating organic fertilizers for use in growing spring greenhouse crops, Dr. Doug Cox (UMass Stockbridge School of Agriculture) recommends Nature’s Source 3-1-1 liquid fertilizer and Sustane 8-4-4 granular slow release fertilizer. Dr. Cox evaluated organic fertilizers that could be mixed and applied using methods familiar to growers using traditional water-soluble or granular slow-release chemical fertilizers. He found that growers would get better results by using different organic fertilizers in combination rather than relying on one fertilizer. He recommends using Nature's Source and Sustane together to take advantages of each fertilizer's strengths.
In this 30-minute webinar, Doug will discuss step-by-step protocol of using Natures Source and Sustane organic fertilizers to grow spring greenhouse crops.
