Combined application of biochar and nitrogen fertilizer promotes the activity of starch metabolism enzymes and the expression of related genes in rice in a dual cropping system

Table 1 The amount of N and biochar applied for each treatment at different time points

Treatment	(N kg ha^− 1)	Biochar (t ha^− 1)	Biochar (kg plot^− 1)	Basal fertilization (g plot^− 1)	Tillering (g plot^− 1)	Panicle initiation (g plot^− 1)
N1B0	135	0	0	Urea: 343.36 P₂O₅: 930 KCl:305	Urea:206.02 KCl: 305	Urea: 137.3
N2B0	180	0	0	Urea: 457.82 P₂O₅: 930 KCl:305	Urea: 274.69 KCl: 305	Urea: 183.13
N1B1	135	10	23.4	Urea: 343.36 P₂O₅: 930 KCl:305	Urea:206.02 KCl: 305	Urea: 137.3
N1B2	135	20	46.8	Urea: 343.36 P₂O₅: 930 KCl:305	Urea:206.02 KCl: 305	Urea: 137.3
N1B3	135	30	70.2	Urea: 343.36 P₂O₅: 930 KCl:305	Urea:206.02 KCl: 305	Urea: 137.3
N2B1	180	10	23.4	Urea: 457.82 P₂O₅: 930 KCl:305	Urea: 274.69 KCl: 305	Urea: 183.13
N2B2	180	20	46.8	Urea: 457.82 P₂O₅: 930 KCl:305	Urea: 274.69 KCl: 305	Urea: 183.13
N2B3	180	30	70.2	Urea: 457.82 P₂O₅: 930 KCl:305	Urea: 274.69 KCl: 305	Urea: 183.13

ISSN: 1471-2229