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Plants - just like all forms of life, including human beings - require a complete range of essential elements in order to thrive. Not one can be lacking, or your crops may suffer nutrient deficiencies. Of course, different concentrations of different nutrients are required by plants animals at different stages of their lives. Just like young, developing children need vitamins minerals, your plants need a steady supply of calcium magnesium to ensure vigorous, healthy growth. But even expert growe