. Certain effects under irrigation of copper compounds upon crops. Plants; Copper solutions, Physiological effect of. 1917] Forbes: Irrigation Effects of Copper Compounds Upon Crops 433. Fig. 7.—Bean cultures grown in soils containing copper as precipitated carbonate, from none to per cent Cu. TABLE XIX ( lOPPEB Carbonate Series (1907), Corn Sample No. 3870 Culture Coin Cu in soil, per cent Check5 Dry matter, grams Cu found, grams .00(120 Cu m. in tops > roots 3885 Corn Check4 .00035 3860 Corn .01 1 .00115 3868 . Corn .01 .00161 3865 < l
. Certain effects under irrigation of copper compounds upon crops. Plants; Copper solutions, Physiological effect of. 1917] Forbes: Irrigation Effects of Copper Compounds Upon Crops 433. Fig. 7.—Bean cultures grown in soils containing copper as precipitated carbonate, from none to per cent Cu. TABLE XIX ( lOPPEB Carbonate Series (1907), Corn Sample No. 3870 Culture Coin Cu in soil, per cent Check5 Dry matter, grams Cu found, grams .00(120 Cu m. in tops > roots 3885 Corn Check4 .00035 3860 Corn .01 1 .00115 3868 . Corn .01 .00161 3865 < lorn .025 .00160 3866 Corn .025 .00670 3864 Corn .05 .00103 3867 Corn .05 .00328 3863 Corn .10 .00079 3862 (lorn .15 .00046 3861 Corn .20 .00073 3860 Corn .30 .00110 T Containing traces of copper, .0025%.. 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 Forbes, Robert Humphrey, 1867-1968. Berkeley, University of California Press
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