In this episode of Hydroponics Daily, Dr. Russell Sharp explores the controversial topic of flushing in hydroponic systems. With the sweltering UK heat as a backdrop, he delves into the reasons why growers from different backgrounds, from lettuce to legal cannabis, might choose to incorporate flushing in their practices.
Dr. Sharp explains what flushing entails: running nutrient-free water through the system to remove excess salts and residues before harvest. He discusses its proposed benefits, such as improved flavor and aroma in crops, reduced harshness in smoking plants like legal cannabis, and the potential for lowering harmful nitrate levels in edible greens.
The episode also covers the contents and effectiveness of popular flush products, debates surrounding their necessity, and practical flushing tips for various crops. Whether you're a seasoned hydroponics enthusiast or new to the field, tune in to weigh the pros and cons of this widely debated technique.
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