RU2509113C1 - Mulching composition (versions) - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: composition contains lignosulphonate, carbamide, Na-carboxymethyl cellulose, potassium chloride and, as natural additives, Conocephalum 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, Conocephalum 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 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, carbamide 0, 4-0.8, potassium chloride 1-3, water the rest (Russian patent No. 2034899 C1, 1995, class of international classification of patents, C09K 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 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 Conocephalum 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 moss species Conocephalum 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):

moss species Conocephalum 10-15 needles of larch Larix lyallii 9.1-9.5

or

moss species Conocephalum 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:

Table Ingredients 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 moss species Conocephalum 10 13 fifteen needles of larch 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 Conocephalum 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 moss species Conocephalum 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 Conocephalum 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 moss species Conocephalum 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 Conocephalum 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 moss species Conocephalum 10-15 needles of larch Larix lyallii 9.8-11 water rest