RU2509112C1 - Mulching composition (versions) - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: composition contains lignosulphonate, carbamide, Na-carboxymethyl cellulose, potassium chloride and, as natural additives, Sphagnopsida moss and Larix lyallii 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 lyallii 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 С09K 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.

In the present invention, the technical result 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, carbamide, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Sphagnopsida and needles of larch Larix lyallii, 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 lyallii 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 lyallii 9.1-9.5

or

Sphagnopsida moss 10-15 needles of larch Larix lyallii 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 the variants of the invention:

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 lyallii 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 lyallii, water in the wake. 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 lyallii 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 lyallii, water in the wake. 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 lyallii 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 needles of larch Larix lyallii, water in the wake. 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 lyallii 9.8-11 water rest