Soil culture medium suitable for dry-land afforestation and preparation method thereof

Abstract

The invention discloses a soil culture medium suitable for dry-land afforestation and a preparation method thereof. The soil culture medium is prepared by effectively performing compound-mixing on raw materials including clays, bentonite, organic matter, plant fibers, aggregating agents, water-retaining agents, rooting powder, controlled-release compound fertilizer and clear water. According to the volume ratio of each component to the culture medium, the clays account for 25-30 percent, the bentonite accounts for 2-3 percent, the organic matter accounts for 30-35 percent, the plant fibers account for 10-15 percent, the aggregating agents account for 0.03-0.05 percent, the water-retaining agents account for 0.1-0.3 percent, the rooting powder accounts for 0.0005 percent, the controlled-release compound fertilizer accounts for 0.8-1 percent, and the clear water accounts for 17-32 percent. The invention also discloses a preparation method of the soil culture medium. The soil culture medium has a good aggregation structure and strong functions of water conservation, water retaining, fertilizer retaining and ventilation, is rich in nutrition and can be absorbed and utilized by nursery stock in a balanced and slow-released manner; the added rooting powder can promote the nursery stock to take root early; the planting of the nursery stock is not restricted by seasons; the nursery stock do not need to be watered and conserved after being planted; and the survival rate of afforestation is high. The preparation method is novel and controllable, and the consumption is low.

Description

technical field [0001] The invention relates to the technical field of afforestation, in particular to a soil medium for afforestation in arid and rainless areas and a preparation method thereof. Background technique [0002] my country has a vast arid land and is one of the countries most seriously affected by desertification in the world. It is urgent to plant trees and improve the ecological environment. Most arid areas are characterized by desertified soil, poor nutrients, scarce rainfall, and dry soil. At present, the method of soil culture medium and preparation method for afforestation in arid areas is monotonous, the technical content is low, and the survival rate of afforestation is not high. [0003] CN1305696 discloses a drought-resistant and water-retaining nutritious soil. Its components by weight are: base soil composed of 80-90 parts of humus soil, 10-20 parts of vegetable garden soil, 2-3 parts of compound fertilizer, 1-1.5 parts of water-retaining agent p...

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the above existing technologies are: (1) the one-time water storage capacity is low, and it is difficult to maintain the water demand of plants in arid areas for a long time; (2) the physical structure of the soil medium is unreasonable, and too much water at one time will cause root suffocation Death; (3) Unbalanced nutrients, short fertilizer effect, lack of rooting aids

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