TY  - BOOK
AU  - Madan, Surinderpal Singh
TI  - Studies on the nutrition of shite onion (allium cepa L.) variety Punjab--48
U1  - T 635.25 M25S 
PY  - 1978///
CY  - Ludhiana
PB  - PAU
KW  - ONION -- FERTILIZERS AND MANURES
KW  - FERTILIZER
KW  - ONION
KW  - VEGETABLE
N2  - The treatments consisted of six levels of nitrogen (0, 40, 80, 120, 160 and 240 kg/ha), three levels of phosphorus (0, 30 and 60 kgiha) and three levels of potash (0, 30 and 60 kg/ha) in all possible combinations. Nitrogen at 120 kgiha was found to be opt
ER  -