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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