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Question
For the cultivation of Tobacco the soil should be rich in
Options:
A .  organic content
B .  potash
C .  calcareous matter
D .  nitrogen
Answer: Option B
Answer: (b)
Tobacco is a crop that needs significant amounts of potassium. It is a fast-growing plant, between 80 and 150 days, with a high daily potassium requirement. Potash is the common name for various mined and manufactured salts that contain potassium in water-soluble form.
In some rare cases, potash can be formed with traces of organic materials such as plant remains, and this was the major historical source for it before the industrial era.

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