Estimation of area- and mass-based leaf nitrogen contents of wheat and rice crops from water-removed spectra using continuous wavelet analysis

Table 1 Summary of designs and ground samplings periods of the field plot experiments

Dataset	Year of data collection	Cultivar	Nitrogen rate (kg hm⁻²)	Planting density (cm)	Growth stages for sampling	Number of samples
Rice	2015	Yliangyou 1* Wuyunjing 24**	0, 100, 200, 300	30 × 15, 50 × 15	Jointing, booting, heading	95
Rice	2016	Yliangyou 1* Wuyunjing 24**	0, 150, 300	30 × 15, 50 × 15	Jointing, booting	74
Wheat	2016	Yangmai 18*	0, 80, 150, 220	20, 30, 40	Jointing, booting, heading	127
Wheat	2017	Yangmai 15* Yangmai 16**	0, 150, 300	25, 40	Late-jointing, heading, anthesis	104

ISSN: 1746-4811