TY  - BOOK
AU  - JATINDER Singh
TI  - Effect of different crop rotations on nutrient availability in soil
U1  - T 631.811 J35E 
PY  - 1989///
CY  - Ludhiana
PB  - PAU
KW  - FERTILIZERS AND MANURES
KW  - CROP ROTATION
KW  - CROPS -- NUTRITION
KW  - SOIL MAIZE
KW  - SOILS -- FERTILIZER MOVEMENT
N2  - Application of recommended and 125% of recommended dose increased the biomass production of all the crops significantly over control But the difference between recommended and 125% of recommended dose and zinc application was non-significant except in mai
ER  -