A series of infographics providing information about iSQAPER's major research themes and results, soil quality issues in the study sites and agricultural management practices of proven benefit. Most of these infographics were designed by the study sites in communication with their stakeholders to explain local soil quality issues and describe recommended practices.


Infographics relating to the main research themes addressed by iSQAPER

Soil quality: indicators, assessment & management

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Soil quality indicators: integrated soil quality assessment

Soil quality is the capacity of soil to perform multiple functions. This capacity can be threatened by intensive agricultural practices. Soil quality can be measured through the use of parameters which are sensitive to management and related to soil functions. For a proper and complete assessment of soil quality, physical, chemical and biological parameters all need to be measured.

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Earthworms indicate healthy soils

Intensive agriculture puts soil under pressure, causes earthworm numbers to decrease, reducing soil structure and increasing erosion risk. Alternative agricultural practices such as reduced tillage, organic agriculture and crop rotation can favour earthworms and maintain soil functions.

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Labile carbon: a sensitive soil quality indicator

Labile carbon is a fraction of total carbon closely connected with soil organisms. It has been positively linked with multiple soil functions and is increased by sustainable agricultural management practices such as reduced tillage and organic matter additions. This makes labile carbon a very useful and practical soil quality indicator.

Sustainable land management practices

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Sustainable farming practices to mitigate soil threats

Soil erosion, organic matter decline and biodiversity loss can all result from intensive agricultural practices. Most ecosystem services are soil mediated and can only be satisfactorily provided by healthy soils. Sustainable farming practices mimic natural soil conditions through minimal disturbance, permanent cover and plant diversity.

Infographics relating to the iSQAPER study sites

Study site 1: De Peel, Netherlands

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Focus points for sustainable soil management in the Netherlands

The De Peel study site provides examples of focus points for sustainable soil management including prevention of nutrient leaching, subsoil compaction addition of organic matter and crop rotation.
NL version

Study site 4: Southeast Spain

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Prácticas agrícolas sostenibles del Sureste Español (Sustainable agricultural practices from southeast Spain) 

Mulching, crop rotation, application of compost, reduced tillage, organic agriculture and maintaining a vegetation cover are illustrated and described (in Spanish)

Study site 5: Crete, Greece

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Land management practices and soil threats in the island of Crete

The land managment practices of no tillage + no herbicide application, no tillage + herbicide application and conventional tillage are compared to assess their effects on soil erosion and loss of organic matter content.

Study site 6: Ljubljana, Slovenia

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Converting cropland to grazing land

In the light soils of Ljubljana, crop production is affected by drought. Cropland is ploughed and sown with drought resistant grass varieties, fencing and rotational grazing paddocks are introduced to provide pasture for suckler cows with multiple benefits for soil quality.

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Fertilising with farmyard manure

Manure collected from livestock is stored before being ploughed into the soil. The manure increases nutrient content and availability, soil structure, microbial activity and impacts plant growth resulting in better vegetable and crop production. 

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Biochar and zeolite - integrated soil fertility managment

Bio-char and zeolite are used in animal production and spread onto the fields as part of organic manure. Zeolite is also used as individual element in crop production to improve soils. All residues are incorporated into the soil.

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Biochar as a soil amendment

Biochar is obtained by pyrolysing wood, plant residues and manure at high temperatures. It is ground before being applied to the soil while sowing or mixed with slurry or manure. It has a number of beneficial effects on soil quality.
SI version

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Organic farming

Organic farming in Slovenia is based on a 5 year crop rotation, complete absence of artificial plant protection products and mineral nitrogen and the circulation of nitrogen via organic manure, crops and residues.
SI version

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Catch crops - importance for soil quality

Catch crops are sown after the harvest when there is enough moisture in the soil for the plants to grow rapidly. They are used for feeding animals or sown for greening arable land.
SI version

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Nutrient cycle in organic farming

Animals are the source of nutrients on farms. Composting cattle manure improves its characteristics and reduces nutrient loss from fields. Hoeing aerates the soil and increases nutrient accessibility. Soil analysis is important for fertilization plans.
SI version

 

Study site 7: Zala County, Hungary

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Land management in Zala County

Zala County is in the southwest of Hungary. Farming practices include the use of manure, grass strips, contour tillage, permanent and cover crops and minimum tillage.  Soil erosion contributes to the eutrophication of nearby Lake Balaton and protection against erosion is essential. 

Study site 8: Braila County, Romania

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Specific soil degradation processes in pastures

Compaction from uncontrolled animal trampling, erosion on slopes, weed infestation from inadequate management and drought periods all cause soil degradation in pastures. Sustainable grazing systems use controlled grazing access and temporary exclusion to allow vegetation restoration.

Study site 9: Trzebieszów, Poland

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Biodiversity in organic farming

Diversity in plant and animal species (especially meso and micro fauna) plays an important role in food and biomass production, in the stability and adaptability of ecosystems and enhances soil function.

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Soils in Poland - how to improve and save

The light, sandy soils of Poland tend to be used with a restricted cereal crop rotation. Consequently low organic matter, low water holding capacity and soil acidity hinder production and other soil functions. Increasing organic matter and using sustainable soil management will save the soil for future generations.

Study site 10: Tartuuma, Estonia

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Land use in Estonia

In Estonia, there are intensively managed mixed farms focussed on dairy farming and crop production, but there are also alternative and organic farms located on the west coast and on the islands which have different impacts on soil quality.

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Soils of Estonia

In central and southern Estonia, where the iSQAPER study site is located, the main soil types are Luvisols. The degradation threats faced by these soils include unbalanced use of nutrients, decomposition of organic matter, compaction, erosion and acidification.

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Agricultural friendly management in Estonia - reduced tillage

Reduced (minimum) tillage is a tillage method that does not turn the soil over; usually, only the upper 10-18 cm of the soil surface is tilled. The technology was implemented in Estonia less than 10 years ago and already 2/3 of cereals are cultivated by minimum tillage technology.

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No-till farming in Estonia

No-till farming (also called zero tillage or direct drilling) is a way of growing crops or pasture from year to year without disturbing the soil through tillage.

 

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