Isbn: 9787109134461 - 叶面肥施用指南 马国瑞 9787109134461 (1 risultati)

paperback. Condizione: New. Language:Chinese.Pages Number: 148 Publisher: China Agricultural Pub. Date :2009-06-01 version 1. Book describes the basic knowledge of foliar fertilization on the basis of a brief description of the nearly 150 species of large number of elements in the volume element. trace elements. amino acid. humic acid and other organic fertilizer composition and role. application techniques and precautions. as well as an effective way to improve fertilizer effects and development trends. Book content co. …