overall, the reduction in natural fertility associated with smoking may not be overcome by assisted reproductive technologies.
总之,辅助生殖技术可能遏止不了与吸烟有关的自然受孕减少。
fertilizers enhance the natural fertility of the soil or replace the chemical elements taken from the soil by previous crops.
肥料能提高土壤的肥力,或补充土壤中被以前作物吸收的化学元素。
forest soil fertility is closely related to forest eco-economical effect. forest fertilitymainly relys on maintaining and resuming natural fertility and combines with artificially applyingfertilizer.
森林土壤肥力的高低与森林生态经济效益密切相关。 其肥力以维持和恢复自然肥力为主,人工施肥为辅。
natural fertility of soil is the gradual product of natural and historical process.
土地自然肥力是自然历史过程的产物;
smoking cessation may improve natural fertility and success rates with infertility treatment.
戒咽可改进天然生育力和不孕癥医疗的获胜率。
forest soil fertility mainly relies on maintaining and resuming natural fertility and combines with artificially applying fertilizer.
森林土壤肥力以维持和恢复自然肥力为主,人工施肥为输。
effect of plant density and fertilizer application on plantain yield in two soils from colombia with different natural fertility is shown (table 2).