Table 2.

Influence of crop establishment techniques and nutrient management options on nitrogen uptake (kg ha⁻¹) in rice–wheat cropping system during 2013–2014 and 2014–2015.

Treatment	Control	RDN	RDN* + Zn**	75% RDN	75% RDN + Zn	75% RDN + MC1	75% RDN + MC1 + Zn	75% RDN + MC2	75% RDN + MC2 + Zn	Mean
2013–2014
PTR-CDW	145.5	241.4	276.1	200.0	205.7	232.9	263.8	233.9	268.6	229.8
SRI-SWI	152.2	241.4	273.3	200.2	207.1	231.4	263.3	233.4	267.5	230.0
ARS-ZTW	169.0	253.1	290.2	216.5	223.2	245.3	284.1	245.3	284.5	245.7
Mean	155.6	245.3	279.8	205.6	211.9	236.5	270.4	237.5	273.5

	Crop establishment techniques	Nutrient management options	Interaction
SEm±	1.56	3.88	6.72
CD (p = 0.05)	6.12	11.03	19.10

2014–2015
PTR-CDW	129.4	231.6	266.5	191.4	196.3	221.8	256.3	226.6	260.7	220.1
SRI-SWI	137.5	230.7	265.5	191.0	197.1	219.6	255.1	225.1	259.3	220.1
ARS-ZTW	156.6	244.8	281.8	209.7	216.1	235.7	277.3	239.5	278.0	237.7
Mean	141.2	235.7	271.2	197.4	203.1	225.7	262.9	230.4	266.0

	Crop establishment techniques	Nutrient management options	Interaction
SEm±	1.48	3.57	6.18
CD (p = 0.05)	5.83	10.15	17.57

PTR, puddled transplanted rice; SRI, system of rice intensification; ARS, aerobic rice system; CDW, conventional drill-sown wheat; SWI, system of wheat intensification; ZTW, zero tillage wheat; RDN*, recommended dose of nutrients [120 kg nitrogen ha⁻¹ and 25.8 kg phosphorus (P) ha⁻¹ per crop]; Zn**, 5 kg Zn ha⁻¹ through ZnSO₄·7H₂O per crop; MC1, Anabaena sp. (CR1) + Providencia sp. (PR3) consortium; MC2, Anabaena–Pseudomonas biofilm; Potassium (K) was applied uniformly in all treatments @ 49.8 kg K ha^–1 per crop; Interaction, significant in both cropping cycle.