Proj
J-GLOBAL ID:200904005768215376  Research Project code:0350010420 Update date:Nov. 01, 2004

Simple composting technique of manure of milking cow: Natural ventilation type composting technology

乳牛ふん尿の簡易堆肥化技術 自然通気式簡易堆肥化技術
Study period:2002 - 2004
Organization (1):
Investigating Researcher (1):
Research overview:
In the mixed area of upland cropping and dairy farming in Hokkaido, manure need to be transported from dairy farmers to upland farmers to eliminate excessive manure in dairy farms and to improve soil in upland fields. However, as the water content of manure in dairy farmers is in general high due to less mulch, not only composting is difficult as it is but also environmental pollution by effluent liquid is worried in the process of transport to or accumulation on the upland fields. This causes an inhibiting factor of manure flow. Therefore, development of the technical system is required in which the water content is decreased sufficiently by eliminating effluent liquid in the manure stock process of dairy farm and then manure is transported to upland farmers and composted. "Low cost facility" and "Do not cause environmental pollution" must be filled for the technique developed to be practical. In this study, (1) Development of the technique for eliminating effluent and decreasing water content of the high water content manure (water content of about 80 %) in the simple manure accumulation site in dairy farms, and (2) Development of the simple composting acceleration technique of the accumulated manure in the upland field, are performed. (Hokkaido Animal Research Center)

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