Vol. 6, Issue 1 (2018)
Comparative evaluation of ammonia volatilization between deep placed and surface applied fertilizers in soil
Author(s): Kalaiselvi Beeman, S Sathya and K Arulmozhiselvan
Abstract: Ammonia volatilization is a potential loss of nitrogen to the environment and it reduces the nitrogen use efficiency. A soil incubation experiment was conducted to compare the ammonia volatilization of surface applied fertilizers and deep placed fertilizers under different soil medium (moist soil and submerged soil) for the period 48 days. For deep placement, the encapsulated fertilizer pellet and for surface application, the same quantity of fertilizer as that of fertilizer pellet was applied on the surface. Ammonia volatilization (mg) and Cumulative ammonia volatilized (%) were higher in the moist soil which is not flooded than flooded soil medium irrespective to the method of application. Surface applied fertilizers were led to more ammonia losses through volatilization than deep placed fertilizers. Under non-flooded condition of soil, the cumulative ammonia volatilized was higher in surface applied fertilizer (6.46%) than from deep placed fertilizer pellet (5.42%). Similarly under submergence, the ammonia volatilization is reduced and the cumulative ammonia volatilized was found high in surface applied fertilizers (6.1%) than deep placed fertilizer pellet (0.14%). The results revealed that the deep placement of fertilizer pellet is significantly beneficial to minimize ammonia loss to the environment than surface application that to very effective under flooded soils.
Pages: 92-96 | 1411 Views 85 Downloads
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How to cite this article:
Kalaiselvi Beeman, S Sathya, K Arulmozhiselvan. Comparative evaluation of ammonia volatilization between deep placed and surface applied fertilizers in soil. Int J Chem Stud 2018;6(1):92-96.
