特殊用法cohort fertility1.分组的生育力effective fertility1.有效生殖率generation fertility1.同年代人的生育力potential fertility1.潜在肥力pseudo-self fertility1.拟自育sea fertility1.海洋肥力self fertility1.自稔性, 自花结实性soil fertility1.土壤肥力[肥度]world fertility1.世界生育率