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Author: search.filters.author.Annie KoruthSubject: search.filters.subject.zinc

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    Effect of ammonium polyphosphate as a carrier for zinc in lowland rice
    (Kerala Agricultural University, 1997) Indira, M; Annie Koruth; Joseph, C A; Annie Koruth
    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.