Ultrastructure and Nutrient Content of Waste Sago and The Potential as Compost Block for Plant Growth Media

Abstract

One alternative industrial waste that has not been widely used by the public is sago waste . Sago solid waste into compost that has brown to black coor . The purpose of this study was to analyze the structure of fresh sago waste , compost and compost dry sago sago black by using SEM ; assess the nutrient content . The results showed that sago waste wet, half-dry and dry sago has a pore size and larger than the black sago waste so they have the potential as a store of water and causing aeration. Measurement of nutrient content of compost sago either fresh , dried and black for the content of N, P and K are relatively high, successive N (1.32 to 1.67 %) , P (0.15 to 0.47 %) and K (1 , 39 to 2.42 %). Based compost structure and water-holding power is relatively high, the composting of waste sago potential for growing media such as plant nurseries