A set of 9 tubes of powder, each making 2 litres of solution. These comprise deficiencies as in the Sach's set, A set of 9 tubes of powder, each making 2 litres of solution. These comprise deficiencies as in the Sach's set, together with a sodium deficient formulation. Includes trace elements missing from the Sach's formula, copper; zinc; manganese; boron; and molybdenum. With a sodium deficient formulation. Includes trace elements missing from the Sach's formula, copper; zinc; manganese; boron; and moly
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