Application of Manganese and Silica through Leaves and Their Effect on Growth and Yield of Rice in Rice Field in Village of Sinar Agung, Sub-district of Pulau Panggung, District of Tanggamus, Lampung Province, Indonesia


  • Paul B Timotiwu University of Lampung
  • Niar Nurmauli
  • Peni Yulianti


The rice production had declined and been stagnant in the last two decades. One way to increase rice productivity was the application of micro elements such as manganese (Mn) and silicon (Si).  On appropriate dose, Mn and Si worked sinergically in increasing rice productivity, but would decrease the productivity when applied excessively.  In order to be effective, Mn should be applied through leaf before Si because the ability of Si to inhibit Mn absorption. This research was to investigate the effect of Mn and Si application and their response on growth and yield of rice.  The research was conducted on irrigated rice field in Village of Sinar Agung, Sub-district of Pulau Panggung, and District of Tanggamus, Lampung Province, Indonesia  from November 2014 to April 2015.  The treatment were arranged in 2x5 factorial consisting of two concentrations of Mn (0 and 5 ppm) and five concentrations of Si (0, 50, 100, 150, and 200 ppm).  The research was designed in Randomized Complete Block Design with three replications.  Homogeneity of variance was tested by Barlett’s test and nonadditivity using Tukey’s test.  The results showed that applications of 5 ppm Mn increased plant growth and yield in all variables, except for plant height.  While the application of Si to 200 ppm increased plant height, dry weight, number of productive tillers, filled grain weight, 1000 grain weight, and grain yield.  The application of 50 ppm of Si with addition of 5 ppm of Mn showed the best response of rice on the filled grain weight and grain yield.

Author Biography

Paul B Timotiwu, University of Lampung

Departement of Agrotechnology College of Agriculture