Liquid organic fertilizers are nutural materials of either plant or animal origin.They include crop residues,livestock manure,household waste,and food industrial waste.Liquid fertilizers are more uniform in mixture of nutrients compared to a solid form.Since there is a good relationship between water content and nutrient availability,the use of liquid organic fertilizer may be an efficient way of enhancing nutrient uptake.Continued use of liquid organic fertilizers results in increased soil organic matter,reduced erosion,better water infiltration and aeration,and higher soil biological activity,as the materials decompose in soil ,and increased yields are obtained after one year of application .Also,use of organic fertilizer may lead to control of some soil borne bacterial and fungal pathogens .