Urea Application Rate for Crop Straw Decomposition in Temperate China

Table 2

C : N of straw of major crops.

Types of straw	Water content (%)	Carbon content (%)	Nitrogen content (%)	C : N
Dry wheat straw	18	46	0.53	87 : 1
Dry rice straw	17	42	0.68	67 : 1
Dry corn stover	20	40	0.75	53 : 1
Soybean stalks	—	41	1.30	32 : 1
Peanut seedling	—	11	0.59	19 : 1

Data source: MOA [23].