The nature and nutrition of farmyard manure and earthworm manure

As research on earthworm castings deepens, it has been discovered that earthworm castings are not merely metabolic waste products of earthworms; they also play a significant role in promoting crop growth, increasing yield, suppressing plant diseases, and improving soil fertility.

Earthworm castings are the product of earthworms decomposing organic waste. It is a light, odorless, non-moldy, finely textured substance with an earthy smell.

Physical Properties

Possesses a natural earthy smell, good aeration and drainage, and high water retention. Due to its large surface area, earthworm castings have a high capacity for absorbing and retaining nutrients. This provides a good environment for beneficial soil microorganisms and promotes the formation of water-stable aggregates in the castings.

Chemical Properties

Cation exchange capacity of earthworm castings soluble salt content, and humic acid content are significantly higher than in organic waste. Through the decomposition process by earthworms, the organic matter in the breeding waste is transformed into humic-like complex substances with better stability.

Earthworm castings are generally neutral because the organic acids secreted by earthworms during digestion neutralize the alkaline organic waste.

Biological Properties

Earthworm castings contain humic substances which affect protein synthesis and plant nutrient absorption. The large number of beneficial microorganisms they contain also convert complex substances into simple, easily absorbed substances for plants.

Nutritional Components

Earthworm castings are rich in N 、 P, K, and trace elements such as Fe, Mn, Zn, Cu, and Mg. They contain 16-18 types of amino acids, and the organic matter and humus content both reach around 30%.

Main Characteristics of Earthworm Castings

● Contains a complete range of nutrients, including antagonistic microorganisms, indoleacetic acid, and other unknown plant growth hormones, which promote crop growth.

● Rich in organic matter and humic acid, which enhances soil fertility, reduces the need for chemical fertilizers, adjusts soil pH, and improves soil fertility.

● Rich in microbial communities, significantly inhibiting soil-borne plant diseases.

   Improving the soil environment, More and more orchards and vegetable greenhouses are now using organic fertilizers, fermented farmyard manure, earthworm fertilizer. Many customers are looking for suitable fertilizer spreading machines, and some customers also apply fertilizer to earthworm beds. To meet customer requirements, on-site investigation is necessary. Tiansheng Machinery has customized earthworm fertilizer spreaders for different land conditions, which have been well-received by customers after being launched on the market.