**Appendix A**

**Table A1.** Spearman's coefficients of correlation between nitrate N contents at cardinal stages of WOSR growth and yield, *n* = 15.


\*\*\*, \*\*, \* significant at *p* < 0.001; < 0.01; < 0.05, respectively. N30, N60, N89—nitrate N content at BBCH 30, 60, and 89, kg ha−1, respectively; N30–N60—nitrate N balance at BBCH 60 vs. BBCH 30; PFPN30—partial factor productivity of N-NO3 at WOSR stage of BBCH 30 (rosette).

