. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. 14 xM ASS. EXPERIMENT STATION BILLETIN 281. Fig. 6.—Upper—Phosphorus alone (Plot 4—2P) did not cause much clover to appear. Middle - Potassium alone (Plot 5—2K) was more effective. Lower-Phosphorus and potassium i Plot 9—2P, 2K) was most effective. ( series I, unlimed, 1923.). 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 Massa
. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. 14 xM ASS. EXPERIMENT STATION BILLETIN 281. Fig. 6.—Upper—Phosphorus alone (Plot 4—2P) did not cause much clover to appear. Middle - Potassium alone (Plot 5—2K) was more effective. Lower-Phosphorus and potassium i Plot 9—2P, 2K) was most effective. ( series I, unlimed, 1923.). 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 Massachusetts Agricultural Experiment Station. Amherst, : Massachusetts Agricultural Experiment Station, 1907-1974
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