Radishes grown with different levels of minerals Introduction Using energy from the sun, plants produce their own food, in the form of carbohydrates, from water and carbon dioxide. But they also require a source of various minerals so that they can convert the carbohydrate into other important chemicals e.g. nitrates contain the element nitrogen which is found in protein but not in carbohydrate.
Plants adapt the size and shape of their organs in response to external conditions.
This experiment will indicate how the mass of roots and shoots of radishes will vary when grown with different levels of minerals. Insert the wick into the hole in the base of the film can. Add more growing mix. Sow 2 radish seeds in each can and lightly cover with growing mix. Write your initials, date and the number of pellets used on a label and inset it in the side of the can.