ISBN: 9787536481060 - 【新华书店】科学种植核桃 全新正版 (1 Ergebnisse)

paperback. Zustand: 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. …