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Influence of slow-release nitrogen fertilizers on the growth and yield of rice, its nitrogen uptake, and leaching loss of nitrogen in waterlogged soils



Influence of slow-release nitrogen fertilizers on the growth and yield of rice, its nitrogen uptake, and leaching loss of nitrogen in waterlogged soils



Indian Journal of Agricultural Sciences 54(1): 45-50



In pot trials with rice given 0, 30 or 50 p.p.m. N in 5 forms, lac-coated urea (LCU) and urea gave the highest paddy yields, significantly higher than those with ureaform, isobutylidene urea (IBDU) or crotonylidene urea (CDU). Root yields with different forms of N were similar. N uptake in grain at 50 p.p.m. N was higher with LCU and urea, but was similar with different N forms at lower N rates.

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