... 4. low investment, quick benifit return Biology organic fertilizer drier uses new ordure from pig and chicken, no chemical matter to produce ... 75% of the nutrients they eat, other is dropping out. Fertilizer made from their excrement includes Nitrogen, phosphorus, potassium, organic matter, amino ... ×10200010000346-8120-30050-808.5 Animal Dung Drier forBiology organic fertilizer