Research Article
Urea Application Rate for Crop Straw Decomposition in Temperate China
Table 3
C : N of straw of some grain and cash crops.
| | Types of straw | C : N |
| | Millet straw | 62 : 1 | | Sorghum straw | 55 : 1 | | Cotton stalk | 70 : 1 | | Rape stem | 68 : 1 | | Sugarcane tip | 35 : 1 | | Fruit and vegetable residues | 35 : 1 | | Sugar beet stem | 20 : 1 | | Sunflower stalk | 65 : 1 | | Tobacco stem | 61 : 1 | | Potato vine | 28 : 1 | | Sweet potato vine | 25 : 1 | | Melon vine | 20 : 1 | | Waste of kale and leafy greens | 15 : 1 |
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