A source of protozoa and nematodes, the extract from a US-invented composter is part of one Hertfordshire grower’s five-year plan to improve soil biology and cut costs. Richard Blair, with his son ...
2. Position drainage pipes A key requirement for making Johnson-Su compost is that it must be aerobic. The Galebreaker lining ensures air flows from the outside, but the aim is for no part of the ...
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