作者: Griffith H Riddle
DOI:
关键词: Environmental science 、 Process (engineering) 、 Consolidation (soil) 、 Fertilizer 、 Agricultural engineering
摘要: This application is a consolidation and continuation-in-part of my co-pending applications filed June 11, 1937, serially numbered 147,712, 147,713, 147,714, 147,718, 147,719, 147,720.. The purpose this invention to provide fertilizer material containing at least three the 64...