STCR-IPNS Maize Hybrid - IRRIGATED

Red sandy loam soil (Palaviduthi series) - Yield Target -9-10 tha^-1

F N	:	3.96 T – 0.62 SN – 0.69 ON
FP2O5	:	1.56 T – 1.93 SP – 0.60 OP
FK2O	:	1.66 T – 0.27 SK – 0.49 OK

Initial soil test values (kg ha-1)			Yield target – 9 t ha-1			Yield target – 10 t ha-1
			NPK (kg ha-1) + GM @ 6.25 t ha-1 + Azospirillum @ 2 kg ha-1 + PSB @ 2 kg ha-1			NPK (kg ha-1) + FYM @ 12.5 t ha-1 + Azospirillum @ 2 kg ha-1 + PSB @ 2 kg ha-1
SN	SP	SK	FN	FP2O5	FK2O	FN	FP2O5	FK2O
200	14	200	177	83	65	217	99	82
220	16	220	165	80	60	205	95	77
240	18	240	153	76	55	192	91	71
260	20	260	140	72	49	180	87	66
280	22	280	128	68	44	167	84	60

Note: FN, FP₂O₅ and K₂O are fertilizer N, P₂O₅ and K₂O in kg ha^-1, respectively; T is the yield target in q ha^-1; SN, SP and SK respectively are available N,P and K in kg ha^-1 and ON, OP and OK are the quantities of N, P and K supplied through organic manure in kg ha^-1. .

Mixed black calcareous soil (Perianaickenpalayam series)- Yield Target 9 – 10 t ha^-1

F N	:	4.01 T – 0.76 SN – 0.83 ON
FP2O5	:	1.57 T – 2.71 SP – 0.61 OP
FK2O	:	2.09 T – 0.26 SK – 0.65 OK

Initial soil test values (kg ha-1)			Yield target – 9 t ha-1			Yield target – 10 t ha-1
			NPK (kg ha-1) + GM @ 6.25 t ha-1 + Azospirillum @ 2 kg ha-1 + PSB @ 2 kg ha-1			NPK (kg ha-1) + FYM @ 12.5 t ha-1 + Azospirillum @ 2 kg ha-1 + PSB @ 2 kg ha-1
SN	SP	SK	FN	FP2O5	FK2O	FN	FP2O5	FK2O
200	14	300	154	73	80	194	89	101
220	16	350	139	68	67	179	84	88
240	18	400	125*	63	54	164	78	75
260	20	450	125*	57	41	148	73	62
280	22	500	125*	52	38*	133	67	49

  *Maintenance dose

Note: FN, FP₂O₅ and K₂O are fertilizer N, P₂O₅ and K₂O in kg ha^-1, respectively; T is the yield target in q ha^-1; SN, SP and SK respectively are available N,P and K in kg ha^-1 and ON, OP and OK are the quantities of N, P and K supplied through organic manure in kg ha^-1.

Black calcareous soil (Pilamedu series)- Yield target 10-11 t ha^-1

F N	:	3.78 T – 0.78 SN – 0.89 ON
FP2O5	:	1.47 T – 2.02 SP – 0.91 OP
FK2O	:	1.79 T – 0.14 SK – 0.62 OK

Initial soil test values (kg ha-1)			Yield target – 10 t ha-1			Yield target – 11 t ha-1
			NPK (kg ha-1) + GM @ 6.25 t ha-1 + Azospirillum @ 2 kg ha-1 + PSB @ 2 kg ha-1			NPK (kg ha-1) + FYM @ 12.5 t ha-1 + Azospirillum @ 2 kg ha-1 + PSB @ 2 kg ha-1
SN	SP	SK	FN	FP2O5	FK2O	FN	FP2O5	FK2O
180	12	400	178	91	91	215	105	109
200	14	450	162	87	84	200	101	102
220	16	500	146	83	77	184	97	95
240	18	550	131	79	70	169	93	88
260	20	600	125*	75	63	153	89	81

  *Maintenance dose

Note: FN, FP₂O₅ and K₂O are fertilizer N, P₂O₅ and K₂O in kg ha^-1, respectively; T is the yield target in q ha^-1; SN, SP and SK respectively are available N,P and K in kg ha^-1 and ON, OP and OK are the quantities of N, P and K supplied through organic manure in kg ha^-1. Soil test crop response based integrated plant nutrition system (STCR- IPNS) recommendation may be adopted for prescribing fertilizer doses for specified yield targets.