Rice Nitrogen Uptake and Partitioning
The Fertilization guidelines can also be found on the UC Davis Nutrient Management website .
Seasonal N Uptake
Nitrogen uptake of rice determined by harvesting the aboveground biomass at different times during the growing season. Rice took up little N until tillering. Most N was taken up between tillering and flowering [1].
Nitrogen Partitioning
At maturity, approximately 70% of the aboveground N was in the grains, while 30% was in the straw [1].
Nitrogen Removed at Harvest
Rice yield and N removed at harvest.
| Location | Years | Yield | Aboveground N | Harvested N | Source | ||
|---|---|---|---|---|---|---|---|
| (lbs/acre) | (tons/acre) | (lbs/acre) | (lbs/acre) | (lbs/ton) | |||
| Colusa and Butte Counties | 1996 | 8,603 | 4.3 | 174 | 122 | 24 | [1] |
Links
References
- Linquist, B.A., Brouder, S.M., Hill, J.E., 2006. Winter straw and water management effects on soil nitrogen dynamics in California rice systems. Agronomy Journal 98, 1050–1059.