TY  - BOOK
AU  - Hellings, A.J.
TI  - Effect of sprinkler irrigation and nitrogen on the yield of spring wheat on a sandy soil
U1  - 633.118.7 H51B 
PY  - 1967///
CY  - Wageningen, The Netherlands
PB  - Centrum voor Landbouwpublikaties en Landbouwdocumentatie
KW  - WHEAT -- IRRIGATION
KW  - SANDY SOILS
KW  - SPRINKLER IRRIGATION
ER  -