Land use and soil nutrients

18 important questions on Land use and soil nutrients

On what soil types there are mainly dairy cattle?

- Peat
- River clay
- Heavy marine clay

On what soil types there is a mixed land use?

Sand

On what soil types there are arable crops and vegatables?

-Light marine clay
- Löss
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What is the organic soil layer?

Little layer of plant residues

What is the surface soil?

Layer of mineral soil with most organic matter accumulation and soil biota

What is the horizon soil layer?

Little affected by soil forming processes

Where does the soil water availability consist of?

- Rooted depth
- Soil texture
- Soil organic matter content

What does a higher soil organic carbon content mean?

Higher level of plant available water

What are the micro nutrients (trace elements) for plants?

Fe, Mn, Zn, Cu, Mo, Cl, B, Co, Se, Na

How can nutrients be uptaken?

Must be in solution in soil water

How are the nutrients uptaken by plants?

- Absorption by plant roots
- Difussion

What happens with nitrate (NO3) leaching?

Eutrophication of surface waters

What happens with ammonia (NH3) volatilization?

N deposition on nature land

What hapens with nitrous oxide (N2O) emission due to denitrification?

Destruction ozone layer and global warming

What are the regulations to reduce environmental impact?

- EU nitrates directive
- Slurry manure application

What is the EU nitrates directive?

Maxx 170 or 250 kg cattle manure N/ha/year and upper limits for artificial N fertilizers

What are the slurry manure application regulations?

Due to shallow injection lower NH3 emission

What is a high risk of sandy soil?

Urine scorching

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