RU2508340C1 - Mulching composition (versions) - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: mulching composition contains lignosulphonate, carbamide, Na-carboxymethyl cellulose, potassium chloride and, as natural additives, Sphagnopsida moss and Larix koreana 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 koreana 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 mixed 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 known was the composition of the mulching coating 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. International classification of patents C09 K 17/00).

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.

The technical result of the invention is the use of numerous types of natural materials, that is, expanding 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 koreana, water in the following wt.%:

lignosulfonate 0.1-0.4 urea 0.2 - 0.6 Na-carboxymethyl cellulose 0.3 - 0.4 potassium chloride 13 Sphagnopsida moss 10-15 needles of larch Larix koreana 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 koreana 9.1-9.5

or

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

The composition is prepared as follows.

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

The table provides 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 koreana 8 9.5 10

Claims (3)

1. The composition of the mulching coating, characterized in that it contains lignosulfonate, urea, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Sphagnopsida and needles of larch Larix koreana, 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 koreana 8-9 water rest 2. The composition of the mulching coating, characterized in that it contains lignosulfonate, urea, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Sphagnopsida and needles of larch Larix koreana, 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 koreana 9.1-9.5 water rest 3. 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 spruce needles of larch Larix koreana, 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 koreana 9.8-11 water rest