In hydroponic systems, without soil, plant growth is dependent on a nutrient solution being able to directly supply all mineral requirements via the water. There needs to be the proper blend of macronutrients—for example, nitrogen (N), phosphorus (P), and potassium (K)—for overall plant development, flowering, and root establishment. It must also contain secondary nutrients such as calcium (Ca), magnesium (Mg), and sulfur (S), in addition to trace elements including iron (Fe), manganese (Mn), zinc (Zn), copper (Cu), and boron (B). The nutrients have to be dissolved in water in appropriate quantities and properly controlled so that the plants get the best uptake. pH and EC (electrical conductivity) are two parameters of paramount importance that decide the efficacy of a nutrient solution. The optimal pH level for the majority of hydroponic crops is between 5.5 and 6.5, which provides maximum availability of nutrients. EC, expressed in mS/cm, is a measure of dissolved salts co...
Hydroponics is a pioneering technique of planting without soil. Instead, the plants are grown in a rich nutrient water solution that provides them with all necessary minerals directly in the roots. Hydroponics is faster than usual growth, yield, and use of space and water relative to conventional agriculture. Hydroponic systems can be installed nearly any where from rooftops and greenhouses to indoor rooms with grow lights. Since they don't use soil.