The raw materials for processing fertilizers in small-scale organic fertilizer production lines are very extensive, covering almost all types of organic waste in agriculture, animal husbandry, forestry, and daily life. These raw materials can be used individually or mixed and blended according to different needs to prepare organic fertilizers that meet specific soil and crop requirements. Here are some common types of raw materials:
Livestock and poultry manure, such as chicken manure, cow manure, pig manure, sheep manure, etc., are the most commonly used organic fertilizer raw materials, rich in major nutrients such as nitrogen, phosphorus, potassium, and organic matter.
Agricultural by-products, such as straw, wheat straw, corn cobs, soybean meal, molasses, etc., are rich in cellulose and lignin, which help regulate the carbon nitrogen ratio and increase organic matter content.
Forest fruit branches and leaves: fallen leaves, sawdust, tree branch fragments, etc., are also good organic sources that can be used to improve soil structure and provide trace elements.
Kitchen waste: Vegetable residues, fruit peels, coffee grounds, tea leaves and other household kitchen waste, although not in large quantities, are also useful additives in small-scale systems.
Industrial by-products, such as distiller's grains, soy sauce residue, rice bran, etc., are rich in protein and minerals and are suitable for making composite organic fertilizers.
Urban sludge: Sludge from domestic sewage treatment plants that has been properly treated contains certain organic matter and nutrients, but it needs to be handled carefully to ensure safety.
Herbaceous plants: Green manure plants such as clover, sesbania, ryegrass, etc. can quickly improve soil quality by planting and turning them into the soil or harvesting and fermenting them.
Seaweed: Marine organisms such as kelp and seaweed contain abundant trace elements, especially iodine and magnesium, which are particularly beneficial for certain crops.
These raw materials can be transformed into valuable organic fertilizers in small-scale organic fertilizer production lines through different combinations and processing methods. It is worth noting that before using any raw materials, their safety, especially the content of heavy metals and pathogens, should be evaluated to ensure the quality and safety of the finished fertilizer. Reasonable selection of raw materials and scientific formulas are the key to the success of small-scale organic fertilizer production lines.