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NEET Biology Unit13  MINERAL NUTRITION [ with Short tricks & Sample Question Paper] METHODS TO STUDY THE MINERAL, REQUIREMENTS OF PLANTS In 1860, Julius von Sachs, a prominent German botanist, demonstrated for the first time, that plants could be grown to maturity in a defined nutrient solution in complete absence of soil.Since then, a number of improvised methods have been employed to try and determine the mineral nutrients essential for plants. This technique of growing plants in a nutrient solution is known as Hydroponics. The essence of all these methods involves the culture of plants in a soil-free, defined mineral solution. These methods require purified water and mineral nutrient salts. After a series of experiments in which the roots of the plants were immersed in nutrient solutions and wherein an element was added/removed or given in varied concentration, a mineral solution suitable for the plant growth was obtained. By this method. essential elements were inde...