Barley Nitrogen Uptake and Partitioning
The Fertilization guidelines can also be found on the UC Davis Nutrient Management website .
Seasonal N Uptake
Nitrogen uptake of barley grown at two fertilization rates determined by harvesting the aboveground biomass at different times during the growing season. Barley took up little N until tillering. Most N was taken up between tillering and heading. Adapted from [2,5].
Nitrogen Partitioning
At maturity, approximately three fourths of the aboveground N of high yielding barley is in the grains, while about one fourth is in the straw [3].
Nitrogen Removed at Harvest
Nitrogen removed with barley grain at harvest. The overall average is weighted for the number of observations in each trial. More information can be found here [3].
| Location | Years | Removal (lbs N/ton @ 12% moisture) | Source | |
|---|---|---|---|---|
| Mean | Range | |||
| California | 1997-2011 | 34.6 | 29 - 40.6 | [6] |
| Colorado | 2001-05 | 33.0 | 27.9 - 44.8 | [4] |
| Montana | 2006-11 | 36.5 | 27 - 48.7 | [7] |
| Italy | 2001-05 | 34.1 | 28.4 - 40 | [2] |
| Italy | 2006-11 | 22.2 | 19.6 - 24.9 | [1] |
| Weighted Average | 33.6 | 19.6 - 48.7 | ||
Links
References
- Albrizio, R., Todorovic, M., Matic, T., Stellaci, A.M., 2010. Comparing the interactive effects of water and nitrogen on durum wheat and barley grown in a Mediterranean environment. Field Crops Research 155, 179-190.
- Delogu, G., Cattivelli, L., Pecchioni, N., De Falcis, D., Maggiore, T., Stanca, A.M., 1998. Uptake and agronomic efficiency in winter barley and winter wheat. European Journal of Agronomy 9, 11-20.
- Geisseler, D., 2016. Nitrogen concentrations in harvested plant parts -A literature overview. Report to the Kings River Watershed Coalition.
- Halvorson, A.D., Reule, C.A., 2007. Irrigated, no-till corn and barley response to nitrogen in northern Colorado. Agronomy Journal 99, 1521-1529.
- Jackson, L.F., Williams, J., 2006. Growth and development of small grains. In: University of California Division of Agriculture and Natural Resources (Ed.). Small Grain Production Manual. Publication 8164.
- Robinson, P., 2011. Assays of individual samples of California feedstuffs.
- Sainju, U.M., Lenssen, A.W., Barsotti, J.L., 2013. Dryland malt barley yield and quality affected by tillage, cropping sequence and nitrogen fertilization. Agronomy Journal 105, 329-340.