Wormcast substrate fertilizer

Abstract

The invention discloses an earthworm dung substrate fertilizer which is prepared from the following raw materials in volume portion: 30 to 90 portions of earthworm dung, 10 to 25 portions of perlite and 10 to 25 portions of a water retention agent. The earthworm dung substrate fertilizer has the advantages of low content of soluble salt, and good water retention, nutrient preserving capability and ventilation, and can improve seeds emergence rate and the disease resistance of seedlings so as to develop the root system of the seedling. Simultaneously, the earthworm dung substrate fertilizer adopts renewable resources as the raw materials, does not destroy entironment, and is more trouble-saving and labor-saving to prepare.

Description

technical field [0001] The invention relates to a base fertilizer, in particular to a vermicompost base fertilizer. Background technique [0002] Floating seedling raising is an advanced seedling raising technology widely used in the world at present, and a large amount of substrate fertilizer is required in floating seedling raising technology. Due to the soluble salt content (EC value), porosity, permeability, bulk density, organic matter content, pH value, humic acid, electrical conductivity, water content, available iron ion and available manganese ion content of the substrate fertilizer in seedling cultivation, etc. All have special requirements, so the current good substrate fertilizers are made by taking grass carbon from the forest that has grown for many years or the land in the virgin forest, and then mixing it with humic acid, cow dung and other ingredients. However, it is found through testing and research that the soluble salt content in the existing base ferti...

AI Technical Summary

Problems solved by technology

However, it is found through testing and research that the soluble salt content in the existing base fertilizer is too high. Because the soluble salt content in the base fertilizer is too high, it may not only form reverse osmosis pressure, but also replace the water in the root system of the seedlings, resulting in the browning of the root tips of the plant seedlings. Or dry, the root system of the plant is damaged, unable to absorb water and nutrients, causing the seedlings to appear wilting, yellowing, tissue necrosis, or plant shortness; Reduce the chance of rot and reduce the growth rate of seedlings

At the same time, the grass carbon and humic acid used in the existing base fertilizer are non-renewable resources, and a large number of them will cause damage to the natural ecological environment.

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