Abstract
The study aims to determining the influence of N-fertiliser levels and soil pH on uptake of trace elements by plants. Application of three levels of N fertiliser (0, 60, and 120 kg N/ha) tends to split potatoes into three groups with different element profile. The effect of three levels N fertilisation on elemental concentrations of the potatoes is evaluated by use of Discriminant Partial Least Squares Regression (PLS). The contents of Cd, Co, Fe, Mn, Pb, V, and Zn in the cabbages, onion, peas, and sprouts showed negative correlation with pH, whereas the correlation for Mo were positive. Our finding suggest that any kind of acidifying processes due to agricultural practices lead to decrease in soil pH, levels of Mo will tend to decrease in edible crop, whereas those of the other elements will show an overall increase.
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