Question

compare the benefit and disadvantage of using manure and fertiliser

Answer 1

manure 
~it is beneficial to increase the yield and quality of crops
~as it is organic it doesn't reduce the fertility of soil

fertilizer
~it decreases the nutritus level of crops however the yield is more
~It ,makes the soil infertile

hope it helps

Answer 2

manure is man made . it is organic that is it is made from biodegradable wastes so if we use it it will degrade back into the soil thus making plant quality good nd soil fertility high whereas if we use fertilizer ,it is made in industries using inorganic substances which is harmful and do not degrade thus decreasing soil quality aftr using in exess amount .