Q. 164.0( 9 Votes )
What is soil fertility? What are the sources of soil fertility? (AS1)
"Soil fertility is the ability of the soil to sustain plant growth."
"It is defined as the capacity to hold water and nutrients and supply them to plants when they need them, independent of direct application of nutrients."
The source of soil fertility includes various nutrients. The important nutrients are phosphorus, nitrogen and potassium.
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What are the factors affecting organic matter levels in soil? How this level of organic matter can be increased? (AS1)AP - Biology