Leather meal is a byproduct of the leather industry, produced by grinding and processing leather scraps and trimmings. It's a protein-rich, slow-release nitrogen fertilizer and soil amendment, also used in some animal feed.
Here's a more detailed explanation:
Production:
Leather meal is created from the waste generated during the tanning process of animal hides.
This waste includes fleshings (the flesh side of the hide) and trimmings from shaping the leather.
These scraps are then ground into a fine meal or powder.
Uses:
Fertilizer: Leather meal is a valuable organic fertilizer due to its high protein content and slow-release nitrogen, which gradually feeds plants.
Soil Amendment: It improves soil structure, water retention, and drainage.
Animal Feed: In some cases, hydrolyzed leather meal can be used as a protein source in animal feed, especially for livestock and fowl.
Properties:
Appearance: Leather meal typically has an earthy appearance with a slight leather odor.
Composition: It contains a significant amount of organic matter, nitrogen, and chromium.
Nitrogen Release: The nitrogen in leather meal is released slowly, providing a sustained source of nutrients for plants.
Carbon-to-Nitrogen Ratio: The carbon-to-nitrogen ratio is around 4:1.
Chromium Content: Leather meal may contain trace amounts of chromium, typically around 2.5%.
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