Adding superphosphate to manure: Mix 20% superphosphate powder into the manure and let it pile for over 20 days after thorough mixing. This helps reduce nitrogen loss due to evaporation, increases the available phosphorus content, and improves overall fertilizer efficiency. The process ensures that nutrients are retained longer, making the manure more effective when applied to crops.
Using ammonium bicarbonate with stacked manure: Cut crop stalks into small pieces and mix them with 0.5–1% ammonium bicarbonate and an equal amount of human fecal urine. Then, cover and seal the mixture with mud. After decomposition, this becomes a rich biological potassium fertilizer that enhances soil fertility and supports plant growth.
Fresh cow dung with soy milk: For every 50 kg of fresh cow dung, add 1.25 kg of soy milk. Mix thoroughly by hand, then seal the mixture and let it ferment for 3–6 days at 25°C. Once ready, dilute it with three times the volume of water and use it as a top dressing. This method produces a highly effective fertilizer, often more efficient than traditional ammonia-based fertilizers.
Calcium phosphate mixed with plant ash: Combine 6 kg of plant ash with 10 liters of water and let it soak for 6 hours. Strain the clear liquid for later use. Meanwhile, mix 2 kg of superphosphate powder with water, allow it to settle, and take the filtrate. Combine both solutions and dilute with 100 kg of water to create a fertilizer equivalent in effectiveness to potassium dihydrogen phosphate.
Human waste mixed with gypsum: Add 5 kg of cooked gypsum powder to 50 kg of human waste, along with 25 kg of water. Mix well and let it sit sealed for 10 days. This method reduces nitrogen loss and improves the overall efficiency of the fertilizer, making it more sustainable and effective for long-term use.
Human waste with ferrous sulfate: For every 50 kg of human waste, add 300 grams of ferrous sulfate (also known as green vitriol). This helps convert the ammonium carbonate present in urine into stable ammonium sulfate, reducing losses and improving nutrient availability for plants.
Superphosphate added to human waste: Mix 2.5 kg of superphosphate into 50 kg of human excrement and store it for 5–7 days. This not only prevents nitrogen from escaping but also significantly boosts the fertilizer's effectiveness, ensuring better nutrient uptake by crops. It’s a simple yet powerful way to enhance the value of organic waste.
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