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close this bookBetter Farming Series 31. Biogas: What it is; How it is Made; How to Use it (FAO Better Farming Series, 1984)
View the document(introduction...)
View the documentPreface
Open this folder and view contentsIntroduction
Open this folder and view contentsHow to build a small biogas unit
Open this folder and view contentsWaste materials
View the documentTime
View the documentCold weather protection
View the documentStirring the waste mixture
View the documentWhen the gas is made
View the documentUsing your biogas
View the documentUsing the fertilizer
View the documentTaking care of your biogas unit
View the documentMaking more biogas
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