Table 3.

The nitrogen fertilizer management experiment (NFM) with different amounts of total nitrogen (N) rates (kg N ha⁻¹), splits applied in different number of days after emergence (DAE), and the amount at each split (kg N ha⁻¹). The treatments with codes in bold were used for calibration and the remaining treatments were used for validation in the wet season (WS) in 1992 or dry season (DS) in 1993.

Experiment in the wet season of 1992						Experiment in the dry of 1993
DAE for split	12	34	56	80	Total N applied	DAE for split	12	34	54	76	Total N applied
Treatment code	N applied at each split					Treatment code	N applied at each split
WSN1	0	0	0	30	30	DSN1	0	0	0	0	0
WSN2	80	0	0	30	110	DSN2	0	0	0	45	45
WSN3	40	40	0	30	110	DSN3	60	60	60	0	180
WSN4	27	27	27	30	111	DSN4	60	60	60	45	225
WSN5	0	0	0	0	0	DSN5	60	60	0	0	120
WSN6	80	0	0	0	80	DSN6	60	60	0	45	165
WSN7	40	40	0	0	80	DSN7	0	60	60	0	120
WSN8	27	27	27	0	81	DSN8	0	60	60	45	165