Rice seedling raising medium based on grain stillage as main component and preparation method of medium

Abstract

The invention discloses a preparation method of a compound rice seedling raising medium, belonging to the technical field of organic solid waste resource utilization. The preparation method comprises the following steps: drying grain stillage in air, screening to obtain the grain stillage with the particle size of 1-4mm; and adding nutrient soil and vermiculite, and evenly mixing, so as to prepare the compound rice seedling raising medium, wherein the particle sizes of the nutrient soil and vermiculite are 3-5 mm. The compound rice seedling raising medium comprises the following components by volume percent: 50-60% of earworm dung, 20-30% of vermiculite and 20% of nutrient soil. The compound rice seedling raising medium is simple in preparation method, rich in resources, cheap in materials, rich in nutrient and stable in property, waste is turned into wealth, and environmental pollution is reduced. When the medium is used for raising seedlings, the operation is simple and convenient, labor intensity is lightened, rice seedling quality is good, percentage establishment of the seedlings is high, the industrial development of rice seedling transplanting using a rice machine is promoted, and the construction of ecological towns and new rural areas is accelerated.

Description

technical field [0001] The invention relates to an organic composition of a rice seedling raising substrate and a preparation method thereof, and belongs to the technical field of biological digestion and resource utilization of solid organic waste. Background technique [0002] Substrate cultivation refers to a plant cultivation method in which the root system of a plant is fixed through a substrate and absorbs nutrient solution and oxygen in a certain place or container. According to statistics, 90% of the soilless cultivation forms in the world are substrate cultivation. The soilless cultivation substrate is a growth medium that can provide plants with a stable and coordinated water, air, and fertilizer structure. In addition to supporting and fixing the plants, it is more important to act as a nutrient and water carrier, so that the nutrients and water from the nutrient solution can be obtained. Transit, the plant root system selects and absorbs from it as needed. The ...

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Problems solved by technology

[0011] The purpose of the present invention is exactly to aim at above-mentioned existing seedling-raising substrate unstable property, need to supplement the deficiencies such as nutrient composition, combine the characteristics of rice seedling-raising and the advantages and disadvantages of various raw materials, provide a kind of non-renewable resources that can avoid the use of peat, improve nutrient content, A stable rice seedling-raising substrate developed by using organic waste and its preparation method. After using the seedling-raising substrate, rice seedlings with developed root system, thick seedling stem, high transplanting survival rate, strong adaptability and high seedling strength index can be cultivated

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