Evaluation of Cadmium Concentration in Wheat Crop Affected by Cropping System
Journal Title: UNKNOWN - Year 2018, Vol 10, Issue 2
Abstract
Background: Cadmium accumulation is a growing problem for foodstuff and the environment; it has negative impacts on humans including the damage to kidneys and liver tissue, as well as carcinogenesis, and emphysema. Objectives: The current research aimed at evaluating the effect of planting systems of agricultural products and different growth stages on cadmium concentration in wheat seed. Methods: The study was carried out as a split plot experiment based a randomized complete-block design with 3 replications in the seasonal year of 2014 - 2015. The main factor included 2 cropping systems (wheat-rice, fallow-wheat) and the subfactor were the growth stages (tillering, flowering, and maturity). Comparison of the amount of wheat seed cadmium concentrations between the 2 cropping systems was performed by t test. Results: The difference in seed cadmium concentration between the 2 cropping systems was significant (P < 0.01), and seed cadmium concentration in rice-wheat cropping system with an average of 0.31 mg/kg was higher than that of the fallow-wheat planting system (0.27 mg/kg) as well as the world health organization (WHO) standard (0.20 mg/kg). The ANOVA results showed the significant effect of cropping systems and different growth stages on the cadmium concentration of plant, root, stem, and soil phosphorus content (P < 0.01). Rice-wheat cropping system, due to high consumption of non-standard phosphate fertilizers (such as cadmium), higher soil phosphorus concentrations (9.03 mg/kg), and residues of the previous products had high cadmium concentration in plant (1.83 mg/kg), root (1.09 mg/kg) and stem (0.73 mg/kg) than those of the fallow-wheat cropping system. Conclusions: Due to high accumulation of cadmium in wheat yield, management of phosphate consumption based the standards of Soil and Water Research Institute is recommended.
Authors and Affiliations
Khoshnaz Payandeh, Alireza Jafarnejadi, Ali Gholami, Ebrahim Panahpor
Keywords
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- EP ID EP292519
- DOI 10.5812/jjhs.14400
- Views 64
- Downloads 0
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