Chemical Property and Plant Nutrient Content in Animal Farm Waste for Organic Production System

Abstract

Composted cow manure, pig manure tea and wastewater of buffalo farm samples from farms at Department of Animal Science, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University,  Nakhon Pathom province, were collected 3 times at 4 months interval, and were studied for organic fertilizer properties and plant nutrients content.  Results of the study indicated that composted cow manure contained the macronutrients as 1.30% N, 1.99% P₂O₅ and 2.35% K₂O, comply with the compost standard grade 2 by the Land Development Department. Pig manure tea and wastewater of buffalo farm did not comply with the standards of liquid organic fertilizer of the Department of Agriculture.  Although pig manure tea and wastewater of buffalo farms contained small amount of major nutrients, both of them contained the minor nutrients, micronutrient elements and beneficial mineral elements of at least 13 types, which could be used as liquid fertilizer for soil and foliar application