Abstract:
A field trial was conducted for four seasons to evaluate the efficacy of ammonium polyphosphatc
(APP) for its sequestering effect of /me and to find out the optimum level of zinc for the rice crop. The
results revealed the sequestering effect of APP to /.inc. Among the three levels of zinc application tried, 25
kg ZnSO4 per ha was found to be the optimum level of zinc for the rice crop.
