CZ31114U1 - An auxiliary soil substance based on dried separated digestate - Google Patents

Description

Technical field

The present invention relates to an organic soil conditioner based on dried separated digestate. BACKGROUND OF THE INVENTION

For the fertilization of horticultural soils and soils, organic components are used that modify the chemical and physical properties of the mineral soil.

Compost is the most widespread of organic components (mainly composted greenery waste material or composted manure, which are a source of nutrients and decomposed organic substances. Composts are used to supply both acceptable and storage nutrients and their dosage depends on the content of acceptable nutrients and pH Composts usually increase pH, horticultural composts have a fine structure and do not contain a fibrous component, their addition to the soil does not significantly increase its air capacity.

To modify the physical properties of horticultural soils and soils, peat is widespread, which in addition to providing an organic component and can modify the reaction of the soil (lowering the pH). Peat is used primarily to improve soil structure, to increase water capacity and to aerate. Alternative components (wood fibers, coconut fibers, composted bark, etc.) are also used for peat to modify the physical properties of horticultural soils. Peat and alternative components, however, do not have sufficient content of acceptable nutrients.

For complex fertilization of horticultural soils it is necessary to combine components containing nutrients (eg composts) and components modifying physical properties (eg peat or composted bark).

For composts, the total nutrient content (CSN 46 5735) is determined for the soil application. Total nutrient contents are also determined for compost and manure treated by drying. Depending on the total nutrient content, the dose of compost or dried organic fertilizer is difficult to determine in order to achieve an optimal content of acceptable nutrients in the horticultural soil or soil.

The essence of the technical solution

The above-mentioned drawbacks are eliminated by an organic soil improver based on dried separated digestate, which consists in that it contains 40 to 60% by volume of dried separated digestate as the main component.

In addition to the separated digestate, the soil conditioner comprises 20-30% by volume peat, 10-15% by volume coconut fibers and 10-25% by volume composted spruce bark.

The basic chemical properties of pH, EC and acceptable nutrient contents according to ČSN EN standards are used for evaluation of components of substrates in terms of their use for soil preparation. The pH values (EN 13037) and EC (EN 13038) and acceptable calcium (EN 13652) are evaluated in the water leachate. The content of acceptable nutrients (main and trace nutrients) is evaluated according to ČSN EN 13651 in the leaching agent ČAT. The content of acceptable trace nutrients may also be determined in the CAT extract. Based on the chemical properties determined in this way, it is possible to determine the optimum dosage of soil improvers for fertilizing horticultural soils and soils.

The soil conditioner consists of four components, combining components containing acceptable nutrients and fibrous components to adjust the physical properties of the soil.

The acceptable nutrient content is supplied to the soil conditioner by a dried separated digestate. This component, like other components of soil conditioner (peat, coconut fiber), has a fibrous structure. Composted bark also has a rough structure. Application of soil conditioner

Ul increases the content of acceptable nutrients in the soil and supplies organic matter to the soil, which increases the air content and at the same time increases the ability of the soil or soil to receive and retain water.

Example of technical solution implementation

Auxiliary soil based on dried separated digestate consisting of 50% by volume of dried 5 separate, 20% by volume of peat, 10% by volume of coconut fibers and 20% by volume of composted spruce bark. The optimum dose of soil conditioner for the preparation of horticultural soils and substrates is% vol.

Industrial applicability

The soil conditioner is intended for the modification of chemical and physical properties of soils and for the right of horticultural soils and substrates.

Claims (1)

PROTECTION REQUIREMENTS CLAIMS 1. A soil separation aid based on dried separated digestate, characterized in that it contains 40 to 60% by volume of dried separated digestate as the main component; and that the main constituent is supplemented with 20 to 30% by volume peat, 10 to 15% by volume coconut fibers and 10 to 15% by volume 15 25% vol composted spruce bark.