Growth, Yield and Heavy Metal Content of Corn Kernels on Peat Soil Ameliorated with Various Industrial Wastes

Abstract

This study aims to obtain the best formulation of various industrial wastes in increasing growth and yield and to determine whether or not there is uptake of heavy metals by corn kernels Pertiwi-3 and NK-212 varieties on peat soils. The study used a split plot design, as the main plot was varieties (Pertiwi-3 and NK-212 varieties), as subplots was an ameliorant formulation consisting of 6 treatments, (60% OPEFB + 20% ATKS + 10% dregs + 10% fly ash, 60% OPEFB + 10% ATKS + 20% dregs +10% fly ash, 60% OPEFB + 10% ATKS + 10% dregs + 20% fly ash, 40% OPEFB + 30% ATKS + 10% dregs + 20% fly ash, 40% OPEFB + 20% ATKS + 30% dregs + 10% fly ash and 40% OPEFB + 10% ATKS + 20% dregs + 30% fly ash), each treatment combination was repeated 3 times. Data from the observations of each parameter were analyzed statistically using analysis of variance and continued with the BNJ test at the 5% level. The results showed that all tested ameliorant formulations showed high yields of both high maize varieties on peat soils, even large and long cobs, straight seed rows with the number (14-16) ear rows and uniform plant diversity as described. The uptake of heavy metal lead (Pb), namely 0.02 - 0.11 μg / g, was very low, while cadmium (Cd) was not found in the seeds of the two maize varieties that were applied to the 6 formulations.