Why is purification of water and nutrient salts so important in studies involving mineral nutrition using hydroponics?
To find out the real deficient mineral element among the all nutrients following experiment can be done 4 different sets of plants are grown in controlled conditions. First set will be the Test or control set having all the nutrients supplied and normal growthSecond set will be devoid of one nutrient (lets say N)Third set will contain all nutrients except the other one (P)Fourth set will contain all the nutrients except(K) Grow all the 4 sets in hydroponics or perlite and observe their growthCompare the results with standard
