P.C. Das creator P.C. Das text New Delhi Kalyani 1993 monographic 269 Manures and fertilizers are used to assist the growth of plant and these have the key role for assisting the fulfilment of green revolution of our contry. Plant nutrients Micronutrients Manures Vermiculture Fertilizers Plant nutrients, Micronutrients, Manures 631.8 978-81-272-4072-1