TY  - BOOK
AU  - Banga, Beant Singh
TI  - Comparative efficiency of calcium ammonium nitrate and urea of maize (Zeamays L.) and their residual effect on wheat (Triticum aestivum)
U1  - T 631.8 B20C 
PY  - 1969///
CY  - Ludhiana
PB  - P.A.U.
KW  - FERTILIZERS AND MANURES
ER  -