Smallest annual weeds

Слайд 2

PLAN

1. The concept of the weeds
2. The dangers of
3. Classification of weeds

PLAN 1. The concept of the weeds 2. The dangers of 3.
and their common types
4. Smallest annual weeds
5. Ephemeral
6. Winter weeds
7. Biennial weeds
8. Perennial weeds
9. Umbilical vascular weeds
10. The root system of fringe weeds
11. Bulbs and tubers weeds
12. Rhizomes weed
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