Efficiency Comparison of Different Compositions of Effective Microorganisms (EM) Fertilizer Stock Dilutions on Growth and Yield of Green Onion in Tbongkhmum District, Tbongkhmum Province, Cambodia

Abstract

The environment is very important in the modern way of life of people, whether rural or urban, in which the connection with nature really improves the well-being of the people. Microorganisms are biologically diverse organisms that are recommended to be used to preserve the natural environment and increase crop yields. Many farmers are interested in reducing the use of chemical fertilizers to reduce the impact on the environment and the contamination of agricultural products that can harm the environment and consumers. Reducing the use of imported chemical fertilizers and preferring to use naturally processed fertilizers makes farmers more profitable in terms of agricultural expenses, especially by increasing the recycling capacity of waste. The purpose of this study is to find out which types of Effective Microorganisms (EM) fertilizer is the most effective for growth and yield of green onions in Tbongkhmum province. As methodology, the experimental study was divided into 4 replications with a total of 4 treatments and a total of 16 plots. The first treatment uses EM fertilizer mixed with rice water; the second treatment uses EM fertilizer mixed with Siam weed; the third treatment uses EM fertilizer mixed with yellow fruit; and the fourth treatment uses EM fertilizer mixed with fish waste. As a result, after using different EM fertilizers in the experiment, the use of EM fertilizers mixed with fish waste has the best effect on the growth of green onions in terms of the number of stems per clump, the number of leaves per clump, the weight per clump, and the weight of green onions per plot.