Effects of Organic and Inorganic Farming Systems in Different Environment on the Availability and Uptake Of Zn and Cd in Rice Plants

Abstract

The effectiveness of the cultivation process is dependent on the planting medium. Zinc (Zn) and Cadmium (Cd) are metal elements whose presence in the soil is influenced by the same factors. However, their effects on plants might be different. Therefore, this study was conducted to determine the effects of sites with different environmental conditions and farming systems on the uptake of Zn and Cd in rice plants. The research was arranged in a two-stage nested randomized block design, consisting of two sites (Fluvaquentic Epiaquepts and Typic Epiaquepst) and two treatments (organic and inorganic farming systems). The effect of soil type and the farming system resulted in the highest yield of Zn availability in inorganic Fluvaquentic Epiaquepts treatment with a value of 5,42mg.kg-1 at two days after planting (DAP), and the highest uptake was in the organic Fluvaquentic Epiaquepts treatment with a value of 1,04 mg.plant-1. The inorganic Typic Epiaquepst treatment had the maximum Cd availability and uptake, with 0.45 mg.kg-1 and 1.15 mg.plant-1, respectively, at 63 DAP. Zn uptake was significantly affected by different sites with different soil types, while Cd was significantly affected by both sites with different soil types and farming systems. Zn and Cd levels in soil and plants were within the normal threshold.