Effect of green manure in combination with different times of N splits as urea nitrogen on biomass partitioning was studied on irrigated lowland rice. Partitioning of photosynthates produced on leaf, stem and root continued up to heading, flowering and ripening phases, respectively. Confining basal N requirement through green leaf manure needs split application of urea-N at active tillering for the production of green leaves and culm production. Applying N in five splits @ 40kg each at basal and P. 20 kg ha' each at active tillering, a week after active tillering and at the time of heading was more useful to divert the photosynthates to leaf, stem, root and panicle in an efficient way for the entire growth period. (
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