RU2508336C1 - Mulching composition (versions) - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: mulching composition contains lignosulphonate, carbamide, Na-carboxymethyl cellulose, potassium chloride and, as natural additives, Hymenophytum moss and Larix mastersiana 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, Hymenophytum moss 10-15, Larix mastersiana larch needles 8-9, water - the balance. Also disclosed are other versions of polymer-natural mulching compositions in which the quantitative content of the needles is changed.

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, such a mulching coating composition 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, 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 Hymenophytum and needles of larch Larix mastersiana, 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 Hymenophytum moss 10-15 Larch needles Larix mastersiana 8-9 water rest.

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

Hymenophytum moss 10-15 Larch needles Larix mastersiana 9.1-9.5

or

Hymenophytum moss 10-15 Larch needles Larix mastersiana 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, wt.% 0.1 0.25 0.4 Urea, 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 Hymenophytum, wt.% 10 13 fifteen Needles of larch Larix mastersiana, wt.% 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 Hymenophytum and needles of larch Larix mastersiana, 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 Hymenophytum moss 10-15 Larch needles Larix mastersiana 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 Hymenophytum and needles of larch Larix mastersiana, 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 Hymenophytum moss 10-15 Larch needles Larix mastersiana 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 Hymenophytum and needles of larch Larix mastersiana, 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 Hymenophytum moss 10-15 Larch needles Larix mastersiana 9.8-11 water rest.