Compound modifier for barren soil in mountainous area and use method of compound modifier

Abstract

The invention provides a composite modifier for barren soil in a mountainous area and a use method of the composite modifier. The composite modifier comprises the following components in parts by weight: 1-2 parts of a water-retaining agent, 40.5-45.5 parts of an organic fertilizer, 52.5-57.5 parts of biochar and 1-2 parts of a microbial agent. The compound modifier for barren soil in a mountainous area is developed according to the characteristics of the barren soil in the mountainous area, and is high in adaptability, stable in effect and low in cost; the water-retaining agent is added, so that the water-retaining and moisture-retaining capacities of soil in the mountainous area in the drought period are improved, and the problem of low mixed sowing survival rate of plant seeds in the mountainous area is solved; the organic matter content of the soil can be effectively increased by adding the organic fertilizer; the biochar can regulate the soil structure and reduce the loss of nutrient substances; the microbial agent is added, so that the capability of absorbing and utilizing nutrient substances in soil by root systems of plants in the early stage is enhanced; and the plants grow better, root systems are more developed, the plants extend into the soil deeper, and the site condition is improved.

Description

technical field [0001] The invention belongs to the technical field of compound improvers, and in particular relates to a compound improver for barren soil in mountainous areas and its application method. Background technique [0002] Soil is a loose layer on the land surface that has certain fertility and can grow plants. It also provides a relatively stable environment and mechanical support for plant growth. Compared with plains, mountainous areas have more complex climate characteristics. Different regions will have different microclimate characteristics due to terrain fluctuations, altitudes and slope aspects, which will greatly affect the hydrothermal conditions of mountainous soils. The topographic changes and parent material characteristics of mountainous areas are diverse, which have a special impact on the formation and development of soil. In addition, the differences in climatic conditions, terrain slopes, and utilization methods eventually lead to obvious differ...

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Problems solved by technology

[0004] In view of this, in the face of the shortcomings of the existing soil improver needles that are not suitable for the improvement of barren soil in mountainous areas, the improvement effect is poor, and the input cost is high, the present invention proposes a method for barren soil in mountainous areas, which has strong applicability, stable effect, The low-cost composite improver solves the problems of low organic matter content, poor water retention capacity, easy loss of nutrients, and poor site conditions in mountainous soils. In the ecological restoration of mountainous areas, it can improve the survival rate of plants using grass seed sowing methods, and improve Restoration effect of mountainous ecological landscape

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