Evaluation of the Nutrient Composition of Maize in Different NPK Fertilizer Levels Based on Multivariate Method Analysis

Figure 2

Cluster of sampling times in nutrients with means of NPK on leaves. Nitrogen (N), potassium (K), phosphorus (P), magnesium (Mg), calcium (Ca), sulphur (S), zinc (Zn), iron (Fe), copper (Cu), manganese (Mn), nickel (Ni), and molybdenum (Mo).