Figure 2

The PCA biplot diagram, showing the relationships among chemical composition of soybean seeds. Method of placing the fertilizer: band—P fertilizer placed 5 cm below seeds; broadcast—P fertilizer placed on surface of the soil. Type of fertilizers: SUP—triple superphosphate as Super FOS DAR 40; STR—struvite as Crystal Green. DM dry matter, CP crude protein, CA crude ash, EE ether extract, CF crude fibre.