Seedling culture substrate and preparation method thereof

Abstract

The invention discloses a seedling culture substrate and a preparation method of the seedling culture substrate. The seedling culture substrate comprises a substrate block (1) and a hole (4), wherein the substrate block (1) comprises garden waste compost products, vermiculite, perlite and water-retaining agents. According to any one of claim 1 to claim 8, the preparation method of the seedling culture substrate comprises the steps that garden waste is smashed to be of the length of 0.5-1cm, the C / N ratio is adjusted to be 25, and the water content is adjusted to range from 50% to 60%; organic material decomposition agents are added to the garden waste, the weight of the organic material decomposition agents accounts for 0.3% of the total weight of the garden waste, composting is carried out until decomposition is accomplished, and the garden waste compost products are obtained; the garden waste compost products, the vermiculite, the perlite and the water-retaining agents are mixed according to the volume proportion, and the pH is adjusted to range from 5.5 to 6.5; inner substrate blocks are obtained through direct block pressing production by using the mixture as raw materials, and outer substrate blocks can be obtained in a block pressing mode after slow release fertilizer and AM fungi are added in proportion. According to the seedling culture substrate and the preparation method of the seedling culture substrate, the sources of the adopted raw materials are wide, and the cost is low; plant nutrient supply is balanced; damage caused to root systems is avoided; nutrients are rich; the waste is recycled, and environment friendliness and energy saving are achieved.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a seedling raising matrix block. Background technique [0002] Landscaping waste refers to the dead branches, fallen leaves, grass clippings, flower rot and other greening prunings produced in the process of urban greening and beautification. At present, the treatment of garden waste is mainly by stacking and landfilling on the spot, which not only occupies land resources, but also may pollute groundwater and have a certain impact on the ecological environment. Therefore, it has become very urgent to explore the resource utilization of garden waste. [0003] Traditional seedling-raising substrates are generally prepared in a certain proportion with peat, vermiculite, perlite, etc. (see an organic seedling-raising substrate, CN102986419A) peat, one of the main components of raw materials, is a non-renewable resource, and excessive development will destroy the ecology envir...

AI Technical Summary

Problems solved by technology

However, there are also some shortcomings: the root system is already full of matrix blocks during planting, and the root system will be more or less damaged by the planting operation. After planting, the single matrix block cannot make corresponding adjustments to the changes in nutrients required for seedlings after planting.

However, this method also has some disadvantages, such as the need to build a greenhouse and purchase equipment, high input costs, strict requirements on the physical and chemical properties of the substrate, fine water and fertilizer management, operators need to have a certain professional background and skills, hormones are needed for control, and seedlings are raised. The risk is high, and the cost per plant may be higher

In addition, peat, one of the main components of commonly used seedling substrate raw materials, is a non-renewable resource, and excessive development will destroy the ecological environment. Therefore, it is of great significance to actively look for a peat-substituting seedling substrate.

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