Table 8.

Correlation between nutrient concentrations (N, P, K), plant biomass, tuber fresh weight (TFW), leaf area index (LAI), height, and inulin content of sunchoke in 2016 and 2017.

Correlation	Nitrogen		Phosphorus		Potassium
	2016	2017	2016	2017	2016	2017
Biomass	0.692**	0.424ns	0.625*	0.078ns	0.654**	0.600*
TFW	0.710**	0.381ns	0.787**	0.559*	0.543*	0.238ns
LAI	0.390ns	0.418ns	0.570*	0.686**	0.439ns	0.482ns
Height	0.708**	0.311ns	0.654**	0.291ns	0.661**	0.217ns
Inulin content	0.474ns	0.323ns	0.545*	0.595*	0.756**	0.340ns

**Significantly different at P ≤ 0.01; *Significantly different at P ≤ 0.05; ns, not significantly different.