. 2020 Dec 21;11:595095. doi: 10.3389/fpls.2020.595095

TABLE 2.

The fertilization procedure of different treatments in the field experiment.

Index		N1K1	N1K2	N2K1	N2K2	Fertilization procedure
First year (kg.hm^–2)	P₂O₅	150				Base (100%, 1-time)
	N	150	150	300	300	Base (30%): Topdressing [70%, 4-time, 20% (May)–10% (Jun.)–20% (Aug.)–20% (Oct.)]
	K₂O	150	300	150	300	Base (30%): Topdressing [70%, 4-time, 20% (May)–10% (Jun.)–20% (Aug.)–20% (Oct.)]
Second year (kg.hm^–2)	P₂O₅	225				Topdressing [2-time, 50% (Mar.)–50% (Jul.)]
	N	225	225	450	450	Topdressing [5-time, 20% (Mar.)–30% (May)–10% (Jun.)–20% (Aug.)–20% (Oct.)]
	K₂O	225	450	225	450	Topdressing [5-time, 20% (Mar.)–30% (May)–10% (Jun.)–20% (Aug.)–20% (Oct.)]