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Technique for Producing Composite Composting Fermentation Strain Inoculant

And Method for Its Application as Chicken Litter and Composting

 Hsuan-chin Lan & Chein-Wei Chen (Assistant Researcher & Researcher(Branch Chief))

 Puli Branch,Taichung District Agricultural Research and Extension Station,

Council of Agriculture, Executive Yuan, R.O.C.(Taiwan)

Tel:886- 886- 4-92880084 &

Some agricultural residues are rich in sugar, protein and oil; their constituents include organic carbon, nitrogen, phosphorus, calcium and trace minerals, which can be recycled. In the past, farmers used to deal agricultural residues by various means, such as burying and burning on site. The ineffective use of the agricultural residues has caused pollution. According to statistics in Taiwan, about 55% of agricultural surplus materials are treated by composting, but there are problems of odor, high cost, low value, and high market competition. Hence, the technology R&D and resource integration application for high-value innovative products are urgently needed, in order to avoid misplaced resources and reduce negative impact on the environment. Recycling of agricultural production residues needs to rely on innovative technologies, and must be combined with the related industries and resources of agriculture, forestry, fishery and animal husbandry for fully recycling and utilization. Such technologies and industrialization mechanisms for waste reduction and resource reuse must be strengthened.     

The number of chickens raised is about 19 billion globally. The amount of chicken manure varies according to the chicken’s breed, sex, weight, age and feeding conditions. Taking the average daily excretion of one chicken as 50-80 g, the daily output of chicken manure produced globally can reach 0.95 million to 1.52 million tons. Most of the chicken manure will be directly used in the field as a fertilizer. In addition to producing odor and flies, and polluting the environment, chicken manure, when directly applied, will consume oxygen in the soil during decomposition and the organic acid produced will inhibit the growth of roots of crops. The chicken manure that has not been fermented is easy to breed germs in the soil, leading to plant pests. At present, chicken manure is mostly treated by composting, but due to high nitrogen content, it is easy to produce odor and cause air pollution problems. How to accelerate its decomposition and reduce the odor generated in the fermentation process to improve the environment is a problem that must be solved.     

In the mushroom industry for food and medical use in Taiwan, the saw-dust bag is used mostly for production. The saw-dust bags after cultivation are mostly disposed of as waste except for a small portion for soil improvement via composting. Some saw-dust bags are disposed of by any unscrupulous person, resulting in environmental pollution. According to the report, more than 500 million of discarded saw-dust bags are produced in Taiwan in one year (about 1 kg of biomass per bag). If they can be recycled, it will effectively reduce environmental pollution.   

In view of the needs of the industry, the Agricultural Improvement Center of Taichung District, Council of Agriculture, used Trichoderma and Bacillus for fermentation, and developed a composite composting fermentation inoculant, which can be directly applied to the composting process and can be modulated into a biological organic liquid fertilizer. In addition, it can be inoculated into the remaining material of the mushroom production by using the fermented inoculant made by fermentation to produce a bacteriostatic pad, which can be directly used at the bottom of the chicken coop to accelerate the decomposition of the livestock manure, reduce the odor, solve the environmental pollution caused by the centralized transportation of materials, and shorten the time of the back-end fermentation process. The compost product developed by this technology can solve the problem of inhibiting root growth and easily breeding pathogen when the chicken manure is directly applied to the crop planting area. The technology has the advantages of convenient operation, low cost, shortened process, and reduced odor. It can solve the environmental pollution caused by surplus agricultural production, and achieve the purpose of agricultural economic cycle.