Abstract
Effect of green' manure in combination with different times of N splits as urea nitrogen on growth, nitrogen uptake and its efficiency was studied in irrigated lowland rice. There was slow but steady accumulation of N in the leaves when basal manuring was done through green leaf manure (GLM). There was loss in the total N uptake, when 40 kg N was applied at AT, which resulted in profuse tiller production. A starter dose of 20 kg N at AT was found essential to improve the N uptake when GLM was basal applied. Split application of N 40 kg each as basal and at Pl with 20 kg each at AT. one week after AT and again at heading resulted in better N uptake with better nitrogen use efficiency (NUE). Agronomic efficiency (AE) was higher with urea N basal compared to GLM.
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