A Wisdom Archive on fertility

Synthesized materials are also called artificial fertilizers, and may be described as straight, where the product predominantly contains the three primary ingredients of nitrogen (N), phosphorus (P) and potassium/potash (K), often described as NPK fertilizers. They are named or labelled according to the content of these three elements, thus a 5-10-5 fertilizer would have 10 percent phosphate in its ingredients. If nitrogen is the main element, they are often described as nitrogen fertilizers. Alternatively ...

Read more here: » Fertilizer: Encyclopedia II - Fertilizer - Inorganic fertilizers

Calcium dihydrogen phosphate (also called mono-calcium orthophosphate) Ca(H2PO4)2 is a chemical compound. Decomposes at 203 °C. The common Ca(H2PO4)2•H2O releases a water molecule before it melts at 109 °C. Calcium dihydrogen phosphate - Uses. Calcium dihydrogen phosphate - Fertilizer. Phosphorus is an important plant nutrient and so is a common component of ferti ... Including:

• Calcium dihydrogen phosphate - Uses
• Calcium dihydrogen phosphate - Fertilizer

Read more here: » Calcium dihydrogen phosphate: Encyclopedia - Calcium dihydrogen phosphate

Also unlike most other animals, human females are fertile all year rather than just at certain times of the year. Unlike other animals which are fertile all year, scientists do not believe that humans evolved this trait in order to allow greater numbers of offspring to be produced. In a hunter-gatherer environment, a human female can only support about one offspring every four years. Until the beginnings of agriculture, breastfeeding and low nutrition levels caused a natural fertility suppression. Concealed ovulation - T ... Including:

• Concealed ovulation - Theories for causation
• Concealed ovulation - The Engels theory
• Concealed ovulation - Theories for behavioral implications
• Concealed ovulation - Conclusion
• Concealed ovulation - Footnotes
• Concealed ovulation - Discussion of the claim that women do not know when they are fertile

Read more here: » Concealed ovulation: Encyclopedia - Concealed ovulation

The Billings ovulation method is a form of natural family planning. Users track fertility by paying attention to the sensation at the vulva and the appearance of any vaginal discharge. This information can be used to achieve or avoid a pregnancy by choosing when to have intercourse. There are no harmful side effects, and it uses no drugs or devices. Women can use this method during regular or irregula ... Including:

• Billings ovulation method - History
• Billings ovulation method - Fertility
• Billings ovulation method - How the method works
• Billings ovulation method - Notes

Read more here: » Billings ovulation method: Encyclopedia - Billings ovulation method

An embryo (Greek: έμβρυον) is a diploid eukaryote in its earliest stage of development. In organisms that reproduce sexually, once a sperm fertilizes an egg cell, the result is a cell called the zygote that has all the DNA of two parents. In plants, animals, and some protists, the zygote will begin to divide by mitosis to produce a multicellular organism. The term embryo refers to the early stages of this development, after the zygote has divided at least once, but before the process has completed to produc ... Including:

• Embryo - External link

Read more here: » Embryo: Encyclopedia - Embryo

Cryptorchidism is a medical term referring to absence from the scrotum of one or both testes. This usually represents failure of the testis to move, to "descend," during fetal development from an abdominal position, through the inguinal canal, into the ipsilateral scrotum. About 3% of full-term infant boys are born with at least one undescended testis, making cryptorchidism the most common birth defect of male genitalia. A testis absent from the normal scrotal position can be: found anywhere along the "path ... Including:

• Cryptorchidism - Terminology
• Cryptorchidism - Normal fetal testicular development and descent
• Cryptorchidism - Causes of cryptorchidism
• Cryptorchidism - Inheritance and recurrence risk of cryptorchidism
• Cryptorchidism - Associations
• Cryptorchidism - Diagnostic evaluation
• Cryptorchidism - Management of cryptorchidism
• Cryptorchidism - Later fertility
• Cryptorchidism - Later cancer risk

Read more here: » Cryptorchidism: Encyclopedia - Cryptorchidism

Amun (also spelt Amon, Amoun, Amen, and rarely Imenand, and spelt in Greek as Ammon, and Hammon) was the name of a deity, in Egyptian mythology, who gradually rose to become one of the most important, before disappearing back into the shadows. Amun - God of Air. Originally, he was simply nothing more than a deification of the concept of air, and thus wind, one of the four fundamental concepts held to have composed the primordial universe, in the Ogdoad ... Including:

• Amun - God of Air
• Amun - Creator
• Amun - King
• Amun - Fertility God
• Amun - Sun God
• Amun - Decline
• Amun - Derived Terms

Read more here: » Amun: Encyclopedia - Amun