Indopedia All Things Marijuana
Master cannabis plant nutrition with Electrical Conductivity (EC), a global measurement standard used to determine the nutrient concentration in water and how efficiently plants absorb water and nutrients. Understanding EC measurement can enhance every stage of your cultivation cycle, ensuring optimal growth and bountiful harvests.
What is EC (electrical conductivity)?
While pure distilled water does not conduct electricity, water from various sources like taps, rain reservoirs, wells, and mineralised water all conduct electricity to varying degrees. EC increases or decreases according to how many ions are present in water from dissolved salts. Simply put, the more salts present in water, the more saline it is and the greater its EC. This in turn leads to increased osmotic pressure in your cannabis plants, or their ability to absorb nutrients via the roots.
Salts or mineral nutrients like calcium, magnesium, phosphorus, sodium, potassium, and chloride are the most commonly used in cannabis cultivation. Their levels differ between water sources and can be added in varying quantities to affect both nutrient quality and EC in water to feed cannabis plants. Salts also affect the pH of…
