Liebig's Law of the Minimum states that a plant's growth rate is determined by the scarcest resource available. So a deficiency of any nutrient will stunt a plant's development, ultimately leading to reduced yields.
Liebig's Law of the Minimum
Plant growth is controlled by the scarcest resource available, not the most abundant.
Plant nutrition plays a major role in the overall health of your plants. A basic understanding of the essential nutrients required by plants can be helpful in producing larger yields and identifying diseases.
Follow the link below for a detailed look into plant nutrition.