Density had more significant effects on wheat yield than soil fertility.

密度对小麦产量的影响比土壤肥力更为显著。

It has the fertility transition character. Temperature is the main factor to induce its fertility transition.

它具有育性转换特性，温度是引起育性转换的主导因素，较低温时完全雄性不育，较高温时正常可育，结实率可达80％。

Then,combined with the soil fertility survey data,the different districts with integrated level of soil nutrient can be further classified.

结合耕地地力调查数据,进一步对该县土壤进行养分综合等级分区。

In the short run, the fertility shock will increase population and makes the young dependency rate higher.

短期内,人口生育率冲击会增加人口总量,并提高抚养系数。

Results: The testis weight, testis elasticity, the equality of semen of model group rats decreased significantly, lose mainly fertility.

结果 ①模型大鼠睾丸重量、弹性及精液质量均显著下降，基本丧失生育力。

Six weeks after withdrawal of the administration, fertility of the medicine treated rats was recovered completely compared with that of the control group.

停止用药6周后,用药组大鼠的生殖能力与对照组相比完全恢复。

Consequently, fertility preservation has become more important,after exposure of the female gonad to chemotherapeutic drugs.

因此,对女性化疗后生殖功能的保护变得非常重要。

In the short run, the fertility shock will increase population and makes the young dependency rate higher.

短期内,人口生育率冲击会增加人口总量,并提高抚养系数。