Table 6 Measured rice grain yield for different fertilizer applications in two seasons (Kharif and Rabi) across four agro-climatic zones (ACZs) in Odisha, India.

Parameters	Season	Year	Treatment or contrast	East and south eastern coastal plain	North eastern coastal plateau	North western plateau	Western central table land
Trials (n)	Kharif	2018		25	25	30	15
	Kharif	2019		25	24	20	13
	Rabi	2018–2019		25	25	15	10
	Rabi	2019–2020		25	25	20	17
Grain yield (t ha⁻¹)	Kharif	2018	RCM_TC (T₁)	4.64^b	4.09^ab	4.76^b	5.91^a
			RCM_TZ_1/2n (T₂)	4.70^ab	5.55^a	5.26^ab	5.78^a
			RCM_TZ_n (T₃)	4.92^ab	5.72^a	5.24^ab	5.35^a
			RCM_TZ_1/2t (T₄)	5.04^ab	3.19^ab	5.88^ab	5.67^a
			RCM_TZ_t (T₅)	5.12^a	5.12^a	5.49^a	5.78^a
		2019	RCM_TC (T₁)	4.20^ab	4.50^b	4.90^ab	4.81^ab
			RCM_TZ_1/2n (T₂)	4.39^ab	5.04^ab	5.10^ab	5.27^ab
			RCM_TZ_n (T₃)	4.41^ab	5.07^ab	5.04^ab	4.98^ab
			RCM_TZ_1/2t (T₄)	4.42^ab	4.60^ab	4.65^ab	5.03^ab
			RCM_TZ_t (T₅)	5.07^a	5.10^a	5.96^a	5.81^a
	Rabi	2018–2019	RCM_TC (T₁)	2.93^a	4.90^b	5.33^a	5.04^a
			RCM_TZ_1/2n (T₂)	2.87^a	5.30^ab	5.21^a	5.03^a
			RCM_TZ_n (T₃)	3.01^a	5.60^ab	5.34^a	5.42^a
			RCM_TZ_1/2t (T₄)	3.23^a	5.29^ab	5.10^a	5.29^a
			RCM_TZ_t (T₅)	2.58^a	5.71^b	5.55^a	5.43^a
		2019–2020	RCM_TC (T₁)	4.63^b	5.10^ab	4.92^ab	4.65^a
			RCM_TZ_1/2n (T₂)	4.65^ab	5.38^ab	5.05^ab	5.02^ab
			RCM_TZ_n (T₃)	4.92^ab	5.49^ab	5.13^ab	5.17^ab
			RCM_TZ_1/2t (T₄)	4.95^ab	5.70^ab	5.09^ab	5.11^ab
			RCM_TZ_t (T₅)	5.05^a	6.58^a	5.36^a	5.41^a

Similar letters represent statistically nonsignificant differences; ^ns: Nonsignificant differences.

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