Brussels sprouts growth and nutrient absorption.

Heavy fertilization is necessary for profitable Brussels sprouts production on new, relatively infertile land. About half of the nutrients taken up by the crop are removed during the first two-thirds of the growing season. Perhaps half of the nitrogen, and all of the phosphorus and potassium could be applied before transplanting the crop. The other half of the nitrogen could be applied 4 to 6 weeks after transplanting.