Nutrition in Plants – Mineral Nutrition

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Nutrition in Plants – Mineral Nutrition- essential minerals for plant growth MODULE - 2 Forms and Function of Plants and Animals 9 Notes NUTRITION IN PLANTS – MINERAL NUTRITION Sometimes you may observe that a potted plant kept in sunlight and provided with sufficient water does not grow. Its leaves look pale and weak. Plant may not even flower properly. Such a situation is an indication, that the plant may not be getting all that is required for normal growth and development. In most of such situations one or more minerals required may be lacking in the soil you might have seen farmers adding some extra manure (khad) to the soil. In this lesson you will learn the importance of mineral nutrition in plants. OBJECTIVES After completing…show more content…
9.1 Experimental set up for nutrient solution culture of plants. Water culture experiments help us to understand : (i) which element is essential for normal growth of the plant. (ii) which element is not essential and is absorbed along with other nutrients. (iii) how much quantity of each mineral is essential. Hydroponics has been successfully employed for the commercial production of seedless cucumber, tomato and lettuce. Aeroponics : Like hydroponics, aeroponics is another technique of growing plants in an air/mist environment without the use of soil. Aeroponics is a technique of growing plants with their roots supplied with moisture present in the air. Rooted plants are placed in a special type of box. The shoots of the rooted plants are exposed to air and the roots are inside the box having computer controlled humid atmosphere. The roots are sprayed/misted for short durations with a hydro atomized pure water/nutrient solution. This method has been developed recently. Since plants cultured by this technique get a very good growth of root hairs, it is very useful method for research purposes. Citrus plants and olives have been successful grown through aeroponics. INTEXT QUESTIONS 9.1 1. What are nutrients ? ............................................................................................................................ 2. Define aeroponics.
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