fertility GREGMAT

1.A green manure is a crop grown mainly to improve soil fertility.

种植绿肥作物主要是为使土壤更加肥沃。

2.She was unable to conceive a child naturally and was offered fertility treatment.

她因不能自然怀而接。

3.The villagers took fertility symbols into the fields to ensure a good harvest.

农民们把丰产象征物拿到田里以确保好收成。

4.Not only major gene’s effect on fertility but also minor gene’s effect should be considered when utilize WCG to overcome semisterile between subspecies.

在利用广亲和基因克服亚种间的半不性时不仅要考虑主基因对性的作用，也不能忽视多基因对性的影响。

5.The paddy soil probably had a long history of tillage, and furthermore it had formed gley horizon and illuvium, but its fertility was not high either.

水稻土有较长耕作历史，并已形成了潜层和潴层，但土壤肥力并不高。