Nitrogen Bacteria and Legumes
With special reference to red clover, cowpeas, soy beans, alfalfa, and sweet clover, on Illinois soils
by Hopkins, Cyril G. (Cyril George)
Language: en · 274 downloads on Project Gutenberg
Nitrogen-fixing microorganismsNitrifying bacteriaQRSB
In: Category: Science - Biology · Category: Science - Earth/Agricultural/Farming
Public-domain ebook sourced from Project Gutenberg #56472.