TY  - BOOK
AU  - Shiv Kumar
TI  - Design, development and evaluation of vertical grooved disc type fertilizer metering mechanisms
U1  - PR 631.33 S40D 
PY  - 1988///
CY  - Ludhiana
PB  - PAU
KW  - FERTILIZER EQUIPMENT
KW  - FERTILIZER SPREADERS
ER  -