TY  - GEN
AU  - Gustafson, A F
TI  - Handbook of Fertilizers: Thier source , mkeup , effects and use
U1  - 631.8 GUS 
CY  - Jodhpur, Agrobios
KW  - Nitrogenous fertilizers, phosphaitc fertilizers, Potash Fertilizers Factory mixed fertilizers, Home mixing fertilzers organic matter
ER  -