👉 In biology, nigrification is a process where an organism converts its waste into compost. This occurs when organisms decompose organic material, such as dead plants and animals, in order to create a nutrient-rich soil mixture. Nigrification can be beneficial for maintaining soil health and fertility by breaking down complex materials and producing nutrients that are essential for plant growth. In summary, nigrification refers to the process of converting waste into compost or other nutrients through decomposition.