TY  - BOOK
AU  - P.C  Das
TI  - Manures and fertilizers
U1  - 631.81 
CY  - UK
KW  - Fertilizers, Manures, Plant Nutrients, Principles of Fertilizer Application, soil amendment, fertility management if cultivable soils, quantum and method of application of fertilizer in crop production
N1  - 4B5
ER  -