ABSTRACT
Currently, rubber nursery production in local areas of Myanmar requires composting methods and effective utilization of locally available waste materials in composting. As the quality of compost depends on the raw materials used, we conducted an experiment at the Perennial Crops Research and Development Center, Mawlamyine Township, Mon State, from March to May, 2019. Aiming to assess the output qualities, we studied five treatments: T1 (oil palm frond + poultry manure-PM), T2 (rice husk + PM), T3 (rice straw + PM), T4 (sawdust + PM), and T5 (yard waste + PM). The experimental design was a randomized complete block design with four replications. According to changes in temperature and pH, the local raw materials adding poultry manure were composted completely after eight weeks. Although the volume of all composts did not change after 8 weeks, some nutrient contents of tested composts with the bin method showed differently at 10 weeks. Composts from the yard waste, rice straw, and sawdust with proper C:N ratios had maximum N, P, and Ca, respectively. Wherein, rice husk compost contained the lowest N, P, K, Ca, and Mg with the maximum C:N. Thus, composts from yard waste, rice straw, and sawdust could be selected as a constituent of potting medium for raising the nursery seedlings. This study also suggested to compare the growth of nursery seedlings and to investigate further agronomic characters & micro-organisms application in rubber production.