登入選單

返回Google圖書搜尋

A User's Guide to NTRM, a Soil-crop Simulation Model for Nitrogen, Tillage, and Crop-residue Management

M. J. Shaffer

出版	U.S. Department of Agriculture, Agricultural Research Service, 1987
URL	http://books.google.com.hk/books?id=jhaC0AEACAAJ&hl=&source=gbs_api