Effect of Types of Organic Materials and Microbial Enrichment on C/N Ratio, Nutrition of Compost, and Microbe Population with Trichoderma sp. Indigenous Activators

Elita, Nelson and Illahi, Ayu Kurnia and Sari, Deliana Andam and Yulensri, Yulensri and Maulina, Fri and Karmaita, Yummama and Kurniasih, Dedeh and Yulita, Resa and Yanti, Rinda (2022) Effect of Types of Organic Materials and Microbial Enrichment on C/N Ratio, Nutrition of Compost, and Microbe Population with Trichoderma sp. Indigenous Activators. Sosial Science Journal, 12 (6).

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Abstract

The use of organic matter as fertilizer for crop production has received great attention for sustainable crop productivity. This is because chemical fertilizers are expensive and have a negative impact on the environment. Compost is an excellent source of micro and macro nutrients, the nutrient content depends on the composition and nature of the waste. This study aims (1) to determine the effect of Trichoderma sp. indigenous activator on the C/N ratio of compost and (2) to obtain the best mix of organic matter to be used as compost. The research method used a completely randomized design with four treatments and three replications. The treatments used are: 1). K3BO : (Cow dung, straw, husk, bran, Trichoderma sp., Pseudomonas fluorescens, Bacillus thuringiensis, Azotobacter). 2). K1BO: (Cow dung, straw, Trichoderma sp., Pseudomonas fluorescens, Bacillus thuringiensis, Azotobacter. 3). K2BO: (Cow dung, husk, bran, Trichoderma sp., Pseudomonas fluorescens, Bacillus thuringiensis, Azotobacter. 4). K0BO. Cow dung, Trichoderma sp, Pseudomonas fluorescens, Bacillus thuringiensis, Azotobacter. The results showed that the K3BO treatment consisting of cow dung, straw, husks, bran Trichoderma sp., Pseudomonas fluorescens, Bacillus thuringiensis, Azotobacter was the best compost mixture. Parameters observed on average temperature 37.34oC, pH 7.27, C/N 11.59, water content 13.57 with nutrient content of P 2.33%, K 1.24%. Enrichment with microbes gave a bacterial population of 530.67 x 108

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