Fertility

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Fertility rate - The (total) fertility rate of a population is the average number of children that would be born to a woman over her lifetime if she were to pass through her childbearing years conforming the age-specific fertility rates of the year in which she turned fifteen. Replacement fertility is the total fertility rate at which women would have only enough children to replace themselves and their partner.

Sub-replacement fertility - Sub-replacement fertility is a fertility rate that is not high enough to replace an area's population. In industrialized countries with low child mortality, sub-replacement fertility is below approximately 2.

Fertility rite - Fertility rites are religious rituals that reenact, either actually or symbolically, sexual acts and/or reproductive processes. As with the sacrifices of humans which many scholars think that ancient peoples made to ensure good fortune (be that as to harvests or hunting or warfare or other endeavors), and which are echoed in the Christian ritual of the Eucharist, fertility rites are a variety of sympathetic magic in which the forces of nature are to be influenced by the example acted out in the ritual.

Fertility awareness - Fertility Awareness (FA) is the practice of observing one or more of a woman’s primary fertility signs to determine the fertile and infertile phases of her cycle. Depending on their goals, couples may choose to time unprotected sexual intercourse so that it falls during the infertile phase (to avoid pregnancy) or the fertile phase (to achieve it).

Suggested Web Sites

Soil Fertility Guide - Soil fertility practices in Manitoba and general fertilizer use considerations. Details about fertilizers, their characteristics, application rates and usage recommendations. N-fixation, Manure and soil factors are also described.

Fertilizers, Soil fertility, Plant Nutrition - Information on all aspects of soil fertility and fertilizers.

Fertile Minds - A program by PotashCorp to address misconceptions about fertilizers and the role of the fertilizer industry. Detailed description of fertilzer use and production. Many downloads and a quiz.

Source: BazSites.com

Web Links

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