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Tomato yields in relation to the nitrogen, potassium and magnesium status of the plants and of the peat substrate

โœ Scribed by P. Adams; C. J. Graves; G. W. Winsor

Publisher
Springer
Year
1978
Tongue
English
Weight
511 KB
Volume
49
Category
Article
ISSN
0032-079X

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Absorbance was measured on a Unicam SP500 spectrophotometer. Chromatograms were repeated several times : the results are as follows : Extract Method 1 1 2 2 PC TLC PC TLC No. of chromatograms 5 5 4 4 Mean absorbance at 500mp 0.621 0.601 0.986 0,985 R.m.s. deviation 0.009 0.010 0.030 0.012 Coefficien