Determination of influential parameters for composting of liquid manure with wheat straw
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Production of compost from mixture of liquid manure and wheat straw is achievable process. In order to obtain final product of good quality, it is necessary to achieve total control of process. In the production process, essential changes in properties were recorded, compared to initial stage. Organic fertilizer of excellent quality was produced by composting the mixture of liquid manure and wheat straw. Prior to composting, components were mixed in fixed ratio. Production process involves aerobic treatment of mixture, by turning the mass frequently. Mixture of manure and straw was placed on the concrete surface in form of prisms, 3m wide and 1m high. Special machine for mass turning was used. The most important parameters for composting process, and their changes during treatment were monitored (changes in temperature, mass, height, bulk density, moisture content, N content, organic dry matter content, pH level C/N ratio).
Keywords:liquid manure / straw / aerobic process / compost
Source:Aktualni Zadaci Mehanizacije Poljoprivrede, 2014, 42, 251-261
- Agronomski fakultet Sveucilista u Zagrebu, 10000 Zagreb