TY  - BK
AU  - Olson,R.A.
AU  - Dreier,A.F.
AU  - Frank,K.
AU  - Grabouski,P.H.
AU  - Thompson,C.
TI  - Using fertilizer nitrogen effectively on grain crops
T2  - Station bulletin (Nebraska. Agricultural Experiment Station, Lincoln)
PY  - 1967///
CY  - Lincoln, NE (USA)
PB  - University of Nebraska, 
KW  - Fertilizer application
KW  - Grain crops
KW  - AGROVOC
KW  - Sorghum
KW  - Zea mays
KW  - Wheat
KW  - Nitrogen fertilizers
ER  -