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The importance of biofertilizer as an environmentally friendly fertilizer is universal. Due to slow efficiency and lack of proper raw materials, the use of organic fertilizers in normal agriculture is much less than required. But now with the advent of new technology, different types of organic fertilizers are being made. In the present book, various types of organic fertilizers, their preparation methods and media elements have been written in a simple and straightforward manner with the help of pictures, tables and charts. We hope the book will be useful for all types of readers to learn...