Grapevines Nitrogen Uptake and Partitioning

Crops:

Almonds

Barley

Broccoli

Cauliflower

Citrus

Corn for Grain

Corn for Silage

Cotton

Grapevines

Lettuce

Pistachio

Rice

Strawberries

Tomatoes

Walnut

Wheat

Seasonal N Uptake

Seasonal pattern of the N content of 'Thompson Seedless' grapevines in Fresno County with a yield of 12.5 tons/acre (Williams, 1991).
N uptake is generally relatively low between budbreak and bloom but high between bloom and veraison. (Williams, 1991; Peakock et al., 1991).

Nitrogen Partitioning

In 5-year old 'Thompson Seedless' grapevines with a yield of 12.5 tons/acre, about 30% of the total N was found in the clusters. N is also removed with canes when the vines are pruned (Williams, 1991).

Nitrogen Removed at Harvest

Nitrogen removed with harvested clusters. Reviewing data from California and other regions, Mullins and coworkers (1992) found that 2.9 lbs N are removed per ton of clusters on average, with values ranging from 1.8-4.12 lbs N/ton.

Links

Grapevines Fertilization Guidelines

References

Mullins, M.G., Bouquet, A., Williams, L.E., 1992. Biology of the grapevine. Cambridge University Press.

Peacock, W.L., Christensen, L.P., Hirschfelt, D.J., 1991. Influence of timing of nitrogen fertilizer application on grapevines in the San Joaquin Valley. American Journal of Enology and Viticulture 42, 322-326.

Schreiner, R.P., Scagel, C.F., Baham, J., 2006. Nutrient uptake and distribution in a mature 'Pinot noir' vineyard. HortScience 41, 336-345.

Williams, L.E. 1991. Vine nitrogen requirements – Utilization of N sources from soils, fertilizers, and reserves. Proceedings of the International Symposium on Nitrogen in Grapes and Wine. The American Society for Enology and Viticulture. pp. 62-66.