Influence of Fertilization and Agronomic Practices on Acrylamide Formation: Review for Potato and Grain Crops

Efforts to reduce acrylamide formation would be greatly facilitated by the development of crop varieties with lower concentrations of free asparagine or reducing sugars, and of best agronomic practice to ensure that concentrations are kept as low as possible. Examinations have shown that 134 kg N ha-1 and 168 kg K2O ha-1 are the best fertilizer rates for balancing tuber yields with a range of tuber quality attributes, including acrylamide- forming potential. The influence of potassium fertilizer source (K2SO4 and KCl) on potato yield and quality under pot experimental conditions was studied by some authors. Fertilizer importance was also proved by comparing five commercial rye varieties grown under a range of fertilization regimes to investigate the effects of genotype and nutrient (nitrogen and sulphur) availability on the accumulation of acrylamide precursors. From the above evidence, conclusions can be made that usage of agro-technical measures can reduce the toxic substances in grains and potato. Also, the appropriate ratio of applied fertilizers and basic nutrient metabolism for acrylamide creation can be adjusted to obtain predefined quantities of reducing sugars and asparagine as the main precursors.