Librería: liu xing, Nanjing, JS, China
paperback. Condición: New. Language:Chinese.Paperback. Pub Date: 2015-06-01 Pages: 84 Publisher: Sichuan Science and Technology Publishing House Science planting walnut based in Sichuan walnut resource characteristics. Sichuan walnut varieties selection. walnut seedling breeding difficulties. high-yield cultivation problem. the system introduces the corresponding technical countermeasures. Among them. for the ecological characteristics of Sichuan and difficulties walnut grafting. the status quo of rural labor. innovati. Nº de ref. del artículo: CX029498
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