TY  - BOOK
AU  - Johnson, Samuel. W
TI  - Nutritional Feeds for Crops: Nitrogen Fixation and Phosphorus from air and the soil
SN  - 8170711770
U1  - 631.811 
PY  - 1998///
CY  - New Delhi
PB  - Shree Publishing House
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Nitrogen fixation
KW  - Plants
ER  -