Reconstruction repair agent for irrigation-free afforestation vegetation in arid region and use method

Abstract

The invention discloses a reconstruction repair agent for irrigation-free afforestation vegetation in an arid region and a use method. The repair agent is prepared from the following components in parts by weight: 60 to 80 parts of natural sodium bentonite ore powder and 20 to 40 parts of weathered coal ore powder. The repair agent is a mixture of the natural sodium bentonite ore powder with the fineness of 100 to 120 meshes and the weathered coal ore powder with the fineness of 80 to 100 meshes. The structural characteristic of the repair agent is to synergize; the repair agent has the advantages of preserving soil moisture, remediating soil, improving saline-alkali soil and increasing soil organic matters; the repair agent can adsorb a large amount of water, nutrients and polluting heavymetal ions; particularly, osmotic pressure of the repair agent is lower than that of a vegetation root system; even if the repair agent loses water, the condition that water of plant root systems isreversely adsorbed is avoided. The repair agent disclosed by the invention is favorable for eliminating the bottleneck of reconstruction of the irrigation-free afforestation vegetation in the arid region and has promoting effects on the irrigation-free afforestation in arid regions with annual precipitation of 50 mm or above; the repair agent has the advantages of being simple in processing, freeof toxicity or harm, free of pollution to environment and long in service life; the survival rate of planted seedlings reaches 80 percent or above, the preservation rate is 75 percent or above, and the increment of nursery stock is improved.

Description

technical field

[0001] The invention relates to the field of vegetation reconstruction in arid areas, in particular to a non-irrigated afforestation vegetation reconstruction and restoration agent in arid areas and a use method. Background technique

[0002] Although the water-retaining agents and moisture-retaining agents currently on the market can store a certain amount of water for planting seedlings, their prices are high, or the processing is complicated, or they will desorb the water in the plant roots after losing water under the condition of no supplementary water, which is harmful to soil restoration. The improvement effect is not good. Although sodium-based bentonite and weathered coal have many excellent properties, as a kind of natural non-toxic and harmless material with large reserves, it is currently mainly used in domestic industrial waste liquid, building materials industry, paper industry, medicine , Pesticides, agricultural sidelines, environmental protec...