Variation in the nitrogen content of tea leaves

Data are presented showing the relationship of the nitrogen content of tea leaves to the level of nitrogenous manuring, to the position in plucked and unplucked shoots, and to various genetic and environmental factors. In carrying out comparative studies of the chemical constituents of tea leaves it is suggested that sampling should be confined to a particular leaf in a specified position on the stem. Samples drawn from plucked shoots should consist of the second leaves of comparable shoots taken from bushes growing in the inner rows of a plot.