Nutrient Management :: An Introduction

Main Field :: Nutrient Management

STCR IPNS Recommendations for Transplanted Rice (Conventional Method)

River alluvium soil (Noyyal series) – Kharif (Yield Target - 70 q ha-1)

Soil	:	River alluvium (Noyyal series)	FN = 4.39 T– 0.52 SN– 0.80 ON
Season	:	Kharif	FP₂O_5†= 2.22 T – 3.63 SP – 0.98 OP
Target	:	7 t ha^-1	FK₂O = 2.44 T – 0.39 SK – 0.72 OK

Initial soil test values (kg 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	18	300	150	67	25*	148	65	25*
240	22	400	130	53	25*	128	51	25*
280	26	500	109	38	25*	107	36	25*

*Maintenance dose
Note: FN, FP₂O₅ and K₂O are fertilizer N, P₂O ₅ 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.

River alluvium soil (Noyyal series) – Rabi (Yield Target - 70 q ha-1)

Soil	:	River alluvium (Noyyal series)	FN = 4.63 T – 0.56 SN – 0.90 ON
Season	:	Rabi	FP₂O₅ = 1.98 T – 3.18 SP– 0.99 OP
Target	:	7 t ha^-1	FK₂O = 2.57 T – 0.42 SK – 0.67 OK

Initial soil test values (kg 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	18	300	159	58	25*	157	56	25*
240	22	400	137	46	25*	135	44	25*
280	26	500	114	33	25*	112	31	25*

*Maintenance dose

Red sandy loam soil (Irugur series) – Kharif (Yield Target - 70 q ha-1)

Soil	:	Red sandy loam (Irugur series)	FN = 5.19 T - 0.89 SN - 0.98 ON
Season	:	Kharif	FP₂O₅ = 2.27 T - 4.50 SP - 1.09 OP
Target	:	7 t ha^-1	FK₂O = 3.11 T - 0.59 SK - 1.02 OK

Initial soil test values (kg 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
160	12	160	168	60**	60**	166	60**	60**
200	16	200	132	60**	60**	130	57	60**
240	20	240	97	46	43	95	39	46

**Maximum dose

Red sandy loam soil (Irugur series) - Rabi (Yield Target - 70 q ha-1)

Soil	:	Red -Sandy loam (Irugur series)	FN = 4.88 T - 0.68 SN - 0.72 ON
Season	:	Rabi	FP₂O₅ = 2.06 T - 2.91 SP - 2.27 OP
Target	:	7 t ha^-1	FK₂O = 2.89 T - 0.47 SK - 0.59 OK

Initial soil test values (kg 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	200	166	75**	75	164	75**	75**
220	16	240	139	75**	57	137	68	60
260	20	280	112	63	38	110	56	41

**Maximum dose

Black alluvium soil (Adanur series) – Rabi (Yield Target - 80 q ha-1)

Soil	:	Black alluvium (Adanur series)	FN = 2.80 T - 0.29 SN - 0.89 ON
Season	:	Rabi	FP₂O₅ = 1.35 T - 1.28 SP - 1.78 OP
Target	:	8 t ha^-1	FK₂O = 2.50 T - 0.42 SK - 1.14 OK

Initial soil test values (kg 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	16	240	119	65	66	117	58	69
220	20	280	107	59	49	105	52	52
260	24	320	96	54	33	94	47	36

Black alluvium soil (Kalathur series) – Kharif (Yield Target - 70 q ha-1)

Soil	:	Black alluvium (Kalathur series)	FN = 5.29 T - 0.75 SN - 0.89 ON
Season	:	Kharif (Kuruvai)	FP₂O₅ = 1.65 T - 1.76 SP - 0.78 OP
Target	:	7 t ha^-1	FK₂O = 2.73 T - 0.37 SK- 0.82 OK

Initial soil test values (kg 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	18	260	167	61	62	165	54	65
240	22	300	137	54	47	135	47	50
280	26	340	107	47	32	105	40	35

Black alluvium soil (Kalathur series) – Rabi (Yield Target - 70 q ha-1)

Soil	:	Black alluvium (Kalathur series)	FN = 5.34 T - 0.67 SN - 0.73 ON
Season	:	Rabi	FP₂O₅ = 1.90 T - 1.86 SP - 0.70 OP
Target	:	7 t ha^-1	FK₂O = 2.81 T - 0.33 SK - 0.80 OK

Initial soil test values (kg 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	18	260	187	75**	75**	185	70	75**
240	22	300	160	69	65	158	62	68
280	26	340	133	62	52	131	55	55

**Maximum dose

River alluvium soil (Manakkarai series) – Kharif (Yield Target - 70 q ha-1)

Soil	:	River alluvium (Manakkarai series)	FN = 4.25 T - 0.60 SN - 0.79 ON
Season	:	Kharif (Kuruvai)	FP₂O₅ = 2.71 T - 4.39 SP - 0.89 OP
Target	:	7 t ha^-1	FK₂O = 3.83 T - 0.60 SK - 0.82 OK

Initial soil test values (kg 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	14	240	137	75**	75**	135	75**	75**
220	18	280	113	75**	67	111	75**	70
260	22	320	89	70	43	87	63	46

**Maximum dose

River alluvium soil (Manakkarai series) – Rabi (Yield Target - 70 q ha-1)

Soil	:	River alluvium (Manakkarai series)	FN = 4.47 T - 0.58 SN - 0.79 ON
Season	:	Rabi (Pishanam)	FP₂O₅ = 2.66 T - 3.68 SP - 0.89 OP
Target	:	7 t ha^-1	FK₂O = 4.08 T - 0.65 SK - 0.82 OK

Initial soil test values (kg 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	14	240	156	75**	75**	154	75**	75**
220	18	280	132	75**	71	130	75**	74
260	22	320	109	75**	45	107	75**	48

** Maximum dose

Updated on Jan 2023