养蚕防病关键技术/新农村实用技术掌中宝 - Tapa blanda

Silkworm disease prevention a key technology(Chinese Edition)

paperback. Condición: New. Paperback Pages Number: 130 Language: Chinese. Silkworm disease prevention key technologies based on the popularity of the promotion of science and sericulture. sericulture-oriented technical staff and the vast majority of silkworm breeder. in plain language about the scientific knowledge of sericulture in disease prevention . The book is divided into six parts. the first description of the preparatory work of the sericulture and understanding from the physiological knowledge of Bombyx mori s. Nº de ref. del artículo: MY1064

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