1. Regression analysis with dummy variables;Allen,1997
2. Effetti dei fattori agronomici sul valore biologico della barbabietola da zucchero;Amaducci;Agronomica Suppl.,1997
3. Irrigating sugar beet in a transitional environment: the case of the Po Valley;Barbanti,2004
4. Cotton and soybean root system growth in three soil temperature regimes;Bland;Agron. J.,1993
5. Fibrous root growth and water use of sugar beet;Brown;J. Agric. Sci.,1985