Uticaj fosfornih đubriva na prinos i sadržaj kadmijuma u krompiru

Ljiljana Bošković-Rakočević,Milena Đurić,Radoš Pavlović

doi:10.5937/aaser1743037b

Abstract

Research was performed to determine the effect of cadmium-contaminated phosphorus fertilizers on the content of available Cd in the soil, its accumulation in potato tubers and potato yield. The experiment was conducted on a slightly alkaline alluvial soil containing available cadmium at a level of 0.0248 mg/kg. The available Cd content of the soil varied with the type of phosphorus fertilizer used and the degree of its contamination with Cd, ranging from 0.0232 mg/kg on average in the treatment with the Russian monoammonium phosphate containing the lowest Cd concentration to 0.0318 mg/kg under Bulgarian diammonium phosphate treatment. Cd concentration in potato tubers was highest under the Bulgarian diammonium phosphate (0.092 mg/kg), which contained the highest amount of Cd, and lowest under diammonium phosphate manufactured in Russia (0.036 mg/kg). In all treatments, Cd concentrations in potato tubers were within the maximum permissible limits. The average potato yield was highest under monoammonium phosphate and lowest under triple superphosphate, and showed no dependence on the Cd contamination of fertilizers.

Highlights

Soil pollution with heavy metals is a serious problem in many countries worldwide
Research was performed to determine the effect of cadmium-contaminated phosphorus fertilizers on the content of available Cd in the soil, its accumulation in potato tubers and potato yield
Cd concentration in potato tubers was highest under the Bulgarian diammonium phosphate (0.092 mg/kg), which contained the highest amount of Cd, and lowest under diammonium phosphate manufactured in Russia (0.036 mg/kg)

Summary

Introduction

Soil pollution with heavy metals is a serious problem in many countries worldwide. Apart from the soil parent material as the main source of heavyReceived 12 June 2017 Accepted 6 September 2017metals, agricultural soils are polluted with pesticides and organic and mineral fertilizers (Martin et al, 2006). Lime and superphosphate fertilizer contain major elements necessary for plant nutrition and growth and trace metal impurities such as Cd. Williams and David (1973) report the Cd content of superphosphate of 38-40 mg kg-1, Bogdanovic et al (1999) applied superphosphate containing 2.08-7.50 mg kg-1, whereas Cd level in MAP was 144 mg kg-1 (Jiao et al, 2004). Williams and David (1973) report the Cd content of superphosphate of 38-40 mg kg-1, Bogdanovic et al (1999) applied superphosphate containing 2.08-7.50 mg kg-1, whereas Cd level in MAP was 144 mg kg-1 (Jiao et al, 2004) These metals can accumulate in the soil, be taken up by plants and passed on in the food chain to animals and humans (Taylor and Percival 2001). Fertilizer applications may be able to influence Cd speciation and complexation which affects Cd movement to plant root as well as Cd uptake (Wangstrand et al, 2007)

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