Essential for the development of a strong healthy root system. Young plants have a rapid intake of phosphorous, so it is important that seed beds and seed composts have a plentiful supply. Root crops such as Carrot, Potato and Parsnip will all decrease in yield if there is insufficient Phosphate available. It is also vital for the movement and storage of food reserves within the plant, and the main nutrient concerned with the proper development of seed production. This gradually turns to a bronzy shade of green as the deficiency worsens.
Growth slows down and the plant gives a poor yield of fruit and seeds.
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