What are the three major types of organic fertilizer?

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Quizplus · Accepted Answer

Animal manure, compost, and green manure are the three major types of organic fertilizer. These provide essential macro and micronutrients to the plants and improve soil fertility, texture, and overall health. Additionally, they promote microbial activity, which helps to improve soil structure and nutrient availability for plants. Sewage sludge and nitrate sprays can contain harmful contaminants that can harm human health and the environment, so it's best to avoid them.

What Are the Three Major Types of Organic Fertilizer