If you assume 25,000 ears per acre, then: â¢ In an average year, 600 x 0.278 = 167. bushels/acre. â¢ In a highly stressful year, kernel size will. be smaller and ways to determine ear population per. 600 x 0.227 = 136 bushels/acre.
Duchy of Warsaw. Duchy of Warsaw, also called Grand Duchy of Warsaw, French DuchÃ© or Grand-DuchÃ© de Varsovie, Polish KsiÄstwo or Warszawskie (1807â15), independent Polish state created by Napoleon.
This list concerns the Polish heads of state since World War I. For a list of historical monarchs of Poland from the Middle Ages to 1795 and 19th and early 20th century claimants to the Polish throne see List of Polish monarchs. 1 Kingdom of Poland (1916â1918) 2 Republic of Poland (1918â1939) 2.1 Chief of State.