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Fill in the blanks:
| soil preparation | topsoil | nutrients |
| manure | wood | plough shaft |
| ploughing | earthworms | hoe |
| leveller | humus | levelling |
| ploughshare | irrigation | weeding |
1. Soil is prepared through , levelling, and manuring.
2. The plough has a long log of wood (main part) called the .
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