Organic Fertilizer Production Methods
Source: Tianjin Daily
If you're looking for a natural and effective way to enrich your soil, organic fertilizers are an excellent choice. Here are several traditional methods used to produce different types of organic fertilizers:
**Weed-based Fertilizer Method:**
Start by collecting semi-dry weeds along with fine dry soil and human waste. Begin by spreading a layer of 7–10 cm thick pond mud or fine soil on the ground. Then add a layer of semi-dry weeds, sprinkle a small amount of human excrement, and cover it with another 7–10 cm layer of fine dry soil. Stack these layers up to about 1.5 meters in height and seal the pile with pond mud. After 30–35 days, re-seal the pile and let it sit for an additional 15–20 days before applying it to the field.
**Straw-based Fertilizer Method:**
Mix dry straw, wheat straw, and other crop stalks with fine dry soil and manure in a ratio of 6:3:1. Soak the crop straws in water one day before planting. Then pile them up with fine dry soil and human manure, creating a mound about 1.5 meters high. Seal it with pond mud. After 25–30 days, flip the pile and re-seal it. Wait another 15–20 days before using the compost.
**Chemical Fertilizer Blend Method:**
Combine chemical fertilizer, manure, and fine dry soil in specific proportions. The mixture should include 25 kg of calcium phosphate, 25 kg of sulfuric acid, 1.25 kg of zinc sulfate, 7.5 kg of potassium chloride, 500 kg of human waste (or 250 kg of pig manure), and 1000 kg of fine dry soil. Mix all ingredients thoroughly, compact the pile, and cover it with plastic film. Let it ferment for 25–30 days before application.
**High-Temperature Composting Method:**
Use livestock manure from pigs, cows, and sheep mixed with turf or fresh weeds in a 2:1 ratio. Add enough water to maintain moisture and mix well. Pile the mixture into a heap, cover it with a plastic sheet, and press it down firmly. After 20–25 days, the compost is ready for use.
**Septic Tank Fermentation Method:**
Directly place livestock and poultry manure into a sealed septic tank for full fermentation. This method helps prevent ammonia loss due to wind and rain, ensuring more complete decomposition of the manure. It's an efficient way to manage waste while producing nutrient-rich fertilizer.
By using these traditional methods, farmers can create high-quality organic fertilizers that improve soil fertility and promote sustainable agriculture. Each technique has its own advantages and is suitable for different types of agricultural settings. Whether you're using plant materials, animal waste, or a combination of both, organic composting is a valuable practice that supports long-term soil health.
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