Wheat plants grown in culture solutions limited in one or two nutrients were analysed for nitrogen, phosphorus, sulphur, potassium, calcium, and magnesium.Limiting nitrogen reduced the size of plants and the weight of all of the nutrients absorbed except phosphorus. Percentages of phosphorus and sulphur increased.Limiting calcium had the least effect on uptake of nutrients.Limiting potassium had no effect on percentage of anions but decreased the total weight absorbed. The percentages of calcium and magnesium were increased, while weight of calcium was increased in one series.Although limiting nitrogen and calcium had marked effects on the ratios of various ions absorbed, the total anion: cation ratio was not affected. Limiting potassium, however, caused an increase in anion: cation ratio.