Maize grain yield evolution and nitrogen and phosphorus consumption in long term fertilizer experiments under non-irrigated condition
Negrila, M.; Negrila, E.; Stan, S.
Probleme de Agrofitotehnie Teoretica si Aplicata 1999?; 19(2): 13-28
Maize fertilizer trials were carried out in rainfed conditions at the Agricultural Research Station Teleorman in 1977-96. Ten years in this period were considered as drought years, 5 normal and 5 wet years. Weather conditions influenced maize grain yield and utilization of nitrogen and phosphorus fertilizer. The maize grain yield under rainfed conditions depended mainly on rain in June-August rather than accumulated rainfall for the whole growth period.