2. Institutional Publications
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Item Slow release nitrogen fertilizers for transplanted rice(Kerala Agricultural University, 1977) Nair, R R; Tomy, P JItem Effect of urea forms on ammonia volatilization, n recovery and yield of lowland rice in sandy and laterite soils(Kerala Agricultural University, 1993) Anilakumar, K; Rajaram, K PAn experiment was conducted to identify the best urea form which allows minimum N loss through ammonia volatilization but simultaneously ensuring good yield in the sandy and laterite soils of Kerala. The sulphur coated urea and urea mudball deep placement recorded minimum N loss through ammonia volatilization (2.85% and 5.29% respectively, of the applied N). However, application of urea supergranu lei n the reduced zone recorded the maximum grain yield and N recovery. Though the rate of ammonia volatilization was comparable between the two soils, yield was higher in laterite soil, irrespective of the treatments.