无公害养蜂及蜂产品生产关键技术问答 - Tapa blanda

Pollution-free beekeeping and bee production of key technologies Answers (with CD 1)(Chinese Edition)

paperback. Condición: New. Paperback. Pub Date: 2008 Pages: 151 Language: Chinese Publisher: China Forestry Publishing beekeeping does not compete with the farming land and fertilizer. not compete with aquaculture feed. will not pollute the environment. there is a one hundred beneficial rather than harmful to the industry. the higher their social and economic benefits. China has a vast. climate and environment appropriate bees life. but also the growth of all kinds of variety of nectar plant. year-round series of flowe. Nº de ref. del artículo: CB022182

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