Question
Download Solution PDFwhat is the pH value of a water-logged field, if the top soil has become alkaline and water logged?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:-
When, pH = 7 to 8.5 normal yields. (Best suited pH for maximum yields)
When, pH = 8.0 to 9.0 yield decreases and partially infertile
When, pH = 11 soil becomes more alkaline and infertile
Note: -
Water logging may be defined as the increase in water-table which lead to decreased productivity of the land. Whenever there is water-logging, there will always be salinity. And hence soil becomes alkaline.
Causes of water logging: -
- Over and intensive irrigation
- Seepage of water from adjoining high lands
- Seepage of water through canals.
- Inadequate natural drainage.
- Excessive rainfall
- Submergence due to floods.
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