Table 3.

Influence of crop establishment techniques and nutrient management options on phosphorus uptake (kg P 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	21.6	27.9	28.8	25.6	26.2	27.0	28.4	27.3	28.9	26.9
SRI-SWI	22.4	27.8	28.8	25.7	26.1	26.9	28.7	27.5	28.3	26.9
ARS-ZTW	23.2	28.4	29.8	26.2	26.8	28.4	29.4	28.1	29.6	27.8
Mean	22.4	28.0	29.1	25.8	26.4	27.4	28.8	27.6	28.9

	Crop establishment techniques	Nutrient management options	Interaction
SEm±	0.10	0.15	0.25
CD (p = 0.05)	0.38	0.42	0.72

2014–2015
PTR-CDW	20.8	27.6	28.6	25.6	26.1	26.9	28.3	27.2	28.6	26.6
SRI-SWI	21.8	27.3	28.7	25.6	26.0	26.7	28.7	27.3	28.0	26.7
ARS-ZTW	22.6	27.9	29.4	26.1	26.6	28.2	28.7	27.9	29.2	27.4
Mean	21.7	27.6	28.9	25.8	26.2	27.2	28.5	27.5	28.6

	Crop establishment techniques	Nutrient management options	Interaction
SEm±	0.11	0.16	0.29
CD (p = 0.05)	0.41	0.47	0.81

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.