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1

Crop protection in organic and low imput agriculture. Options for reducing agrochemical usage. Proceedings of a symposium organised by the British crop protection council held at Churchill College Cambridge U.K. 4th-6th September 1990

Crop protection in organic and low imput agriculture. Options for reducing agrochemical usage. Proceedings of a symposium organised by the British crop protection council held at...

por Unwin, R.
Publicado 1990

Libro

2

Animal manure on grassland and fodder crops. Fertilizer or waste? /

Animal manure on grassland and fodder crops. Fertilizer or waste? /

Publicado 1987

Otros Autores: “...Unwin, R. J.,...”

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