Isbn: 9787565508424 - 适度规模肉牛养殖场的建设及管理配套技术 (1 risultati)

paperback. Condizione: New. Paperback. Pub Date :2014-01-01 Pages: 120 Language: Chinese Publisher: China Agricultural University Press moderate scale beef cattle farms supporting the construction and management of technology. this book is one of the new series of textbooks vocational training for farmers. The materials include proper scale beef cattle farms. including site selection and layout planning. appropriate scale cattle farms inside the building. a modest scale cattle farms farming facilities (equipment). moder.…