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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.

Links

Rice Fertilization Guidelines

References

1. 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.