Responses of soil organic and inorganic carbon to organic and phosphorus fertilization in a saline − alkaline paddy field

Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Table 1 Application rates of organic and chemical fertilizers for different treatments

Treatment	Organic fertilizer (kg ha⁻¹)	Phosphorus fertilizer (kg ha⁻¹)	Nitrogen fertilizer (kg ha⁻¹)	Potassium fertilizer (kg ha⁻¹)
CK	0	0	0	0
C₀P₀	0	0	255	229
C₀P₁	0	64	255	229
C₀P₂	0	128	255	229
C₁P₁	1000	64	255	229
C₁P₂	1000	128	255	229
C₂P₁	2000	64	255	229
C₂P₂	2000	128	255	229

^*Organic fertilizer contains 45% C, 2.4% N, 1.6% P and 1.4% K. Phosphorus, nitrogen and potassium fertilizers are superphosphate, urea and potassium sulphate, respectively