RU2508320C1 - Mulching composition (versions) - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: mulching composition is characterised by that it contains lignosulphonate, carbamide, Na-carboxymethyl cellulose, potassium chloride and, as natural additives, Sphagnopsida moss and Larix kamtschatica larch needles, and water in the following ratios, wt %: lignosulphonate 0.1-0.4, carbamide 0.2-0.6, Na-carboxymethyl cellulose 0.3-0.4, potassium chloride 1-3, Sphagnopsida moss 10-15, Larix kamtschatica larch needles 8-9, water - the balance. Other versions of polymer-natural mulching compositions are also disclosed.

EFFECT: wider range of soil mulching compositions.

3 cl, 1 tbl

Description

The invention relates to the chemistry of synthetic substances - polymeric in mixture with organic and natural substances, for example, for urban and agricultural purposes or to compositions for mulching various types of soils, lawns, park areas.

Previously, such a composition of the mulching coating was known in which polyacrylamide, urea, lignosulfonate, potassium chloride and water were used in the following ratio, wt.%: Polyacrylamide 0.25-0.75, lignosulfonate 0.5-1.5, urea 0, 4-0.8, potassium chloride 1-3, water - the rest (Russian patent No. 2034899 C1, 1995, class of international classification of patents С09K17 / 00).

But such a patent did not use natural materials - this is a significant drawback. In nature, there are many materials suitable for this - many mosses, various types of wood waste, bark, shavings, wood chips. Moreover, different types of wood can be combined with different types of synthetic materials - polymers, their waste, if they are harmless to the environment.

In the invention, the technical result is the use of numerous types of natural materials, that is, the expansion of the arsenal of compositions for mulching soils.

This result is achieved in that the composition of the mulching coating according to the invention contains lignosulfonate, urea, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Sphagnopsida and needles of larch Larix kamtschatica, water in the following wt.%:

lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 Sphagnopsida moss 10-15 needles of larch Larix kamtschatica 8-9 water rest

As options, the following compositions were invented, in which important ratios for moss and needles were changed (selected):

Sphagnopsida moss 10-15 needles of larch Larix kamtschatica 9.1-9.5

or

Sphagnopsida moss 10-15 needles of larch Larix kamtschatica 9.8-11

The composition is prepared as follows.

These ingredients are individually milled and then mixed in an aqueous medium.

The table shows various examples for embodiments of the invention.

Table Ingredients Composition, wt.% one 2 3 Lignosulfonate 0.1 0.25 0.4 Urea 0.2 0.4 0.6 Na-carboxymethyl cellulose 0.3 0.35 0.4 Potassium chloride one 2 3 Sphagnopsida moss 10 13 fifteen Larch needles Larix kamtschatica 8 9.5 10

Claims (3)

1. The composition of the mulching coating, characterized in that it contains lignosulfonate, carbamide, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Sphagnopsida and needles of larch Larix kamtschatica, water in the following wt.%:
lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 Sphagnopsida moss 10-15 needles of larch Larix kamtschatica 8-9 water rest 2. The composition of the mulch coating, characterized in that it contains lignosulfonate, carbamide, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Sphagnopsida and needles of larch Larix kamtschatica, water in the following wt.%:
lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 Sphagnopsida moss 10-15 needles of larch Larix kamtschatica 9.1-9.5 water rest 3. The composition of the mulch coating, characterized in that it contains lignosulfonate, carbamide, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Sphagnopsida and needles of larch Larix kamtschatica, water in the following wt.%:
lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 Sphagnopsida moss 10-15 needles of larch Larix kamtschatica 9.8-11 water rest