Preparation method of paddy seedling raising medium

Abstract

The invention discloses a preparation method of a paddy seedling raising medium. In the preparation method, livestock and poultry feces is used as foodstuff for earthworm to provide an environment suitable for growth of earthworm, and the earthworm feces generated by earthworm treatment is screened into earthworm feces with the particle size of 1-4mm, and uniformly mixed with nutrient soil and vermiculite to prepare a novel organic medium, wherein the particle sizes of vermiculite and the nutrient soil are 3-5mm. The medium comprises the components by volume percent: 50-60% of earthworm feces, 30-40% of vermiculite and 10-20% of nutrient soil. The medium is simple in preparation method, rich in resources, inexpensive in materials, sufficient in nutrients and stable in property, changes wastes into valuables, and reduces environmental pollution; and used for paddy seedling raising, the medium improves the paddy plug seedling raising quality, reduces the seedling raising steps (like fertilization) and the cost, and promotes the industrialized development of paddy machine seedling transplanting.

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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