TY  - BOOK
AU  - REDDY, K S et al.
TI  - Enhancing productivity of soybean - wheat system by balanced and integrated nutrient management on blak soils of Madhya Pradesh
U1  - 631.44(543.1) 
PY  - 2007///
CY  - Indian Institute of Soil Science
PB  - Bhopal
ER  -