Percentage of Organic Matter in Soil (Leaving Cert Agricultural Science): Flashcards
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Alternative name for organic matter in soil
Alternative name for organic matter in soil
Humus
Effect of strong heating on organic matter
Effect of strong heating on organic matter
Burns away/decomposes
Why pre-dry soil at 100°C for 48 hrs?
Why pre-dry soil at 100°C for 48 hrs?
Removes moisture that affects weight measurements
Purpose of heating to constant weight
Purpose of heating to constant weight
Ensures all organic matter removed
Smoke during heating indicates
Smoke during heating indicates
Organic matter being burned
Formula: % organic matter
Formula: % organic matter
Formula: % inorganic matter
Formula: % inorganic matter
Organic % + Inorganic % equals
Organic % + Inorganic % equals
100%
Typical % organic matter in Irish soils
Typical % organic matter in Irish soils
2-10%
High organic matter content indicates
High organic matter content indicates
More fertile, productive soil