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“Mulching” means covering the soil with organic material. This ensures that the soil is protected from physical effects such as drying out, erosion, excessive overheating, silting up, etc. Mulch covers have a temperature-regulating effect and serve as a nutrient depot. In many cases, mulching replaces deep soil cultivation.
The soil’s buffering function describes its ability to neutralise acids in order to keep the pH constant.
Greenhouse gases reflect sunlight bouncing off the Earth, acting like greenhouse glass. Air pollutants that affect the climate include carbon dioxide (CO2), which is produced when fossil fuels are used, methane (CH4), nitrous oxide (N2O) and fluorinated gases (F-gases).
In soil science, “siltation” refers to the displacement of soil particles through the influence of rain. The consequences are the closure of soil pores, which reduces water drainage and the filter effect, levelling, erosion and crust formation after drying. This hinders plant growth.
Synthetic fertilisers or mineral fertilisers are inorganic plant fertilisers that can be used in conventional agriculture. The most common ingredients are nitrogen and phosphate compounds.
Methane (CH₄) is a flammable, colourless and odourless gas. The main component of natural gas is methane. It has a high greenhouse potential and thus makes a significant contribution to global warming.
This chemical substance is better known by its trivial name, laughing gas. The chemical molecular formula is N2O. Nitrous oxide is a greenhouse gas and contributes to global warming. The gas is mainly used as an anaesthetic.
Sod tiles are pieces of grass separated from the ground with a thin layer of soil in which the roots are located.
This distinction is a subdivision according to the nutrient requirements of plants. This distinction is important when creating crop rotation beds. Heavy feeders (e.g., brassicas) need an extraordinary amount of nutrients for good growth. Therefore, they are the first to be grown in a crop rotation. Average feeders (e.g., carrots) require significantly fewer nutrients. Weak
Atmospheric deposition means the deposition of atmospheric air admixtures on natural and artificial surfaces.
Cellulose and lignin are components of the cell walls of plants. At around 50 percent, cellulose is the main component and is therefore the most common organic compound. Lignin is deposited in the cell walls and leads to wood formation, also called “lignification”, of the cell wall.