TY  - BOOK
AU  - JAGGI, Ramesh Chand
TI  - Effect of forms of nitrogen on the efficiency of applied sulphur
U1  - T 631.42 J20E 
PY  - 1973///
CY  - Ludhiana
PB  - P.A.U
KW  - SOILS -- SULPHUR CONTENT
KW  - NITRIFICATION
ER  -