In this article:
An understanding of the partitioning of N between the annual and perennial parts of the vine over the course of the growing season is important in order to develop an improved means for accurately predicting vine N requirements, both quantitatively and temporally.
This study quantified the fluctuations in the total amount of N in field grown grapevines and the amount of N in annual and perennial organs over 2 seasons in response to the supply pf fertiliser N. (page 1207)
Effect of Nitrogen Fertiliser on Nitrogen Partitioning and Pool Sizes in Irrigated Sultana Grapevines
2006, Australian Journal of Experimental Agriculture, vol 46, pages 1207-1215
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