由懋正

Overview

Works:	2 works in 3 publications in 1 languages

Titles

海河低平原水土資源與農業發展研究 by: 由懋正; 黃榮金 (Electronic resources)

農田土壤水資源評價 by: 由懋正; 王會肖 (Electronic resources)

農業資源評價管理與利用 by: 由懋正 (Electronic resources)