Table 2.

Performance of nano-nitrogen fertilizer under conservation tillage (rice residue retention condition).

	0 DAS	20–25 DAS	40–45 DAS	60–65 DAS	80–85 DAS
T1	Absolute control (no nitrogen)
T2	1/3rd N as basal + full PK	1/3rd N each just before 1st and 2nd irrigation (BI)
T3	1/3rd N as basal + full PK	1/3rd N each, 7–10 days after 1st and 2nd irrigation (AI) (Farmers practice)
T4	1/3rd N as basal + full PK	1/3rd N just before 1st irrigation	Spray of Nano N*(4%)
T5	1/3rd N as basal + full PK	1/3rd N each just before 1st and 2nd irrigation (BI)		Spray of Nano N*
T6	1/3rd N as basal + full PK	1/3rd N just before 1st irrigation	Spray of Nano N*	Spray of Nano N*
T7	1/3rd N as basal + full PK	Spray of Nano N*	Spray of Nano N*	Spray of Nano N*
T8	1/3rd N as basal + full PK	Spray of Nano N*	Spray of Nano N*	Spray of Nano N*	Spray of Nano N*

DAS days after sowing.

*Nano N spray through Nano urea @4 ml/l with 1250 ml/ha of product dose, T₃: Farmers’ practice.