RU2496830C1 - Mulching composition (versions) - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: mulching composition contains lignosulphonate, carbamide, Na-carboxymethyl cellulose, potassium chloride and, as natural additives, Polytrichopsida moss and Larix amurensis 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, Polytrichopsida moss 10-15, Larix amurensis larch needles 8-9, water - the balance. Other versions of the mulching composition are disclosed which contain Larix amurensis larch needles in the following ratios, wt %: 9.1-9.5 and 9.8-11.

EFFECT: invention widens the range of soil mulching compositions.

3 cl

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, such a composition of the mulching coating was known in which polyacrylamide, urea, lignosulfonate, potassium chloride and water were used, in the following mass% ratio: polyacrylamide 0.25-0.75, lignosulfonate 0.5-1.5, carbamide 0.4 -0.8, potassium chloride 1-3, water the rest (Russian patent No. 2034899 C1, 1995, class of international classification of patents, С09К 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 my 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, urea, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Polytrichopsida and needles of larch Larix amurensis, water in wt.%:

lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 moss of the species Polytrichopsida 10-15 needles of larch Larix amurensis 8-9 water rest.

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

moss of the species Polytrichopsida 10-15 needles of larch Larix amurensis 9.1-9.5

or

moss of the species Polytrichopsida 10-15 needles of larch Larix amurensis 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 Wt% one 2 3 Lignosulfonate, wt.% 0.1 0.25 0.4 carbamide, wt.% 0.2 0.4 0.6 NA-carboxymethyl cellulose, wt.% 0.3 0.35 0.4 potassium chloride, wt.% one 2 3 moss of the species Polytrichopsida, wt.% 10 13 fifteen Needles of larch Larix amurensis, wt.% 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 Polytrichopsida and needles of larch Larix amurensis, water in the following ratio, wt.%:
lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 moss of the species Polytrichopsida 10-15 needles of larch Larix amurensis 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 Polytrichopsida and needles of larch Larix amurensis, water in the following ratio, wt.%:
lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 moss of the species Polytrichopsida 10-15 needles of larch Larix amurensis 9.1-9.5 water rest 3. 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 Polytrichopsida and needles of larch Larix amurensis, water in the following ratio, wt.%:
lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 moss of the species Polytrichopsida 10-15 needles of larch Larix amurensis 9.8-11 water rest