R. J. Unwin

3 published titles

Efficient land use of sludge and manure : Ministry of Agriculture, Fisheries and Food Conference tour, Askov, Denmark 25-27 June 1985

(Contributor)

1 edition

ADAS
1985
Details

Crop protection in organic and low input agriculture : options for reducing agrochemical usage : proceedings of a symposium organised by the British Crop Protection Council, held at Churchill College,

(Contributor)

1 edition

ISBN: 0948404442
BCPC
1990
Details

Soil protection through good agricultural practice

1 edition

Fertiliser Society
1994
Details

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