. The book of the Rothamsted experiments. Lawes, J. B. (John Bennet), 1814-1900; Gilbert, Joseph Henry, Sir, 1817-1901; Rothamsted Experimental Station; Agriculture -- Experimentation; Agricultural chemistry. 188 EXPERIMENTS UPON GRASS LAND. Fig. 40.—Percentage of Rumex acetosa in the Herbage of the Grass Plots. First Crop, Season 1903. Unmanured. Minerals only. Nitrogen only. 4-1. Superphosphate. 5. i 8. No Potash. I 17. Nitrate Soda, I 7. Complete. Nitrogen and Minerals. 4-2. No Potash ^^^^. 9. Complete ,- .. 11. Excess N. J '*"'• 14. Complete; Nit. Please note that t


. The book of the Rothamsted experiments. Lawes, J. B. (John Bennet), 1814-1900; Gilbert, Joseph Henry, Sir, 1817-1901; Rothamsted Experimental Station; Agriculture -- Experimentation; Agricultural chemistry. 188 EXPERIMENTS UPON GRASS LAND. Fig. 40.—Percentage of Rumex acetosa in the Herbage of the Grass Plots. First Crop, Season 1903. Unmanured. Minerals only. Nitrogen only. 4-1. Superphosphate. 5. i 8. No Potash. I 17. Nitrate Soda, I 7. Complete. Nitrogen and Minerals. 4-2. No Potash ^^^^. 9. Complete ,- .. 11. Excess N. J '*"'• 14. Complete; Nit. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hall, Daniel, Sir, 1864-1942; Lawes Agricultural Trust Committee; Warington, Robert, 1838-1907. London, J. Murray


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