Plant culture medium

Abstract

The invention relates to a plant culture medium which is prepared by the following steps: mixing and stirring raw materials, then preparing the mixture into a plant culture medium in cylindrical shape or other geometrical shape by adopting a squeezing method and a die pressing method. The weight percentage of the raw materials is as follows: 55-65% of plant material obtained by steam explosion treatment, 30-40% of plant material obtained by steam explosion treatment and flow smashing treatment, 0.5-1.5% of compound fertilizer, 1-2% of plant fiber high-power water absorbent, and 2-5% of crosslinking agent. The main components of the plant culture medium are cellulose, hemicellulose, lignin, polysaccharide, active calcium carbonate and the like; on the one hand, the components can be transformed into nutrient substance to be absorbed by the root system of a plant by bacteria degradation, and on the other hand, moisture in air and soil can be absorbed in cycles, thus maintaining nutrientand moisture needed by the growth of plant for a long time, and being applicable to conducting afforestation and earth greening in drought regions.

Description

technical field [0001] The invention relates to the technical field of plant cultivation, in particular to a plant culture medium. Background technique [0002] The arid areas in my country are mainly distributed in the five southwestern provinces, such as the north of the Qinling Mountains in Shaanxi, Inner Mongolia, and western Shanxi. The arid areas account for 1 / 3 of the arable area; desertification and desertification areas are mainly distributed in Xinjiang, Gansu, Qinghai, Ningxia and other places , with an area of ​​2.622 million square kilometers, accounting for 27.4% of the country's land area, directly affects the survival of 400 million people, and continues to desertify 2,460 square kilometers every year, with a direct economic loss of 54.1 billion yuan. [0003] How to prevent drought and further desertification of cultivated land is a key topic of the 12th Five-Year Plan. The traditional methods of afforestation and surface greening in arid and desertified are...

AI Technical Summary

Problems solved by technology

The traditional methods of afforestation and surface greening in arid and desertified areas are spraying and dripping, and water-retaining agents are also used to keep the soil moist. However, the survival rate of greening is generally low. The main reason is the lack of water resources in arid and desertified areas. , the distance between the water resource area and the green area is relatively long, the temperature difference between day and night is large, and the surface dryness is high, etc.

[0004] At present, there are many types of plant culture medium, cultivation soil, scientific mud, etc. in the market. Plant culture medium is mainly divided into two types from the use of raw materials. One is mainly inorganic substances, and the main materials are soil, ceramsite, Rock powder, etc. The auxiliary materials are various organic fertilizers, growth agents, vitamins, humus, etc. This kind of plant medium has poor air permeability, is easy to harden, and has poor water retention, so it cannot provide sufficient nutrients and water for plants for a long time; the other is based on organic matter. Mainly, the main materials are plant ash, plant debris, animal manure, etc., and the auxiliary materials are curing agent, water-retaining agent, binder, etc. This kind of plant medium has better water retention and fertilizer than the previous one, but in arid environment It is easy to evaporate and dry, and cannot meet the requirements of water and fertilizer retention, so it cannot be used well in arid areas and desertification and desertification areas