Conversations around fertility are often centered around women. Infertility is not just an issue occurring among females; males also experience infertility. A Baylor College of Medicine urologist explains the factors affecting ...
Jun 21, 2024
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Women hoping to get pregnant sometimes wonder if there's anything they can do to make it easier to conceive.
Apr 19, 2024
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The population of almost every country will be shrinking by the end of the century, a major study said Wednesday, warning that baby booms in developing nations and busts in rich ones will drive massive social change.
Mar 24, 2024
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The world is approaching a low-fertility future. Although by 2100 more than 97% of countries and territories will have fertility rates below what is necessary to sustain population size over time, comparatively high fertility ...
Mar 20, 2024
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A QIMR Berghofer-led international team of scientists has unlocked the genetic secrets behind why some mothers are more likely than others to conceive twins.
Mar 14, 2024
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In recent years, the treatment landscape for solid tumors has undergone a notable change. With new cancer treatments, the future looks brighter for many young cancer patients, making fertility issues and future family planning ...
Mar 13, 2024
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Declining fertility rates and aging populations in Western nations have recently set off alarm bells, but continued global population growth will actually raise the pressure billions more people place on a destroyed environment, ...
Mar 6, 2024
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For the first time researchers have identified patterns of risk for several different types of cancer in men with fertility problems and their families.
Feb 21, 2024
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Discovery of a pair of genes that work in perfect harmony to protect male fertility, could provide new insights into some unexplained cases of the most severe form of infertility, research suggests.
Feb 14, 2024
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At a fertility clinic in Tunis, Bintou Yunoussa hopes doctors can finally help her conceive—one of more than two million foreigners who travel to Tunisia annually for medical procedures.
Jan 31, 2024
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Fertilizer (or fertiliser) is any organic or inorganic material of natural or synthetic origin (other than liming materials) that is added to a soil to supply one or more plant nutrients essential to the growth of plants. A recent assessment found that about 40 to 60% of crop yields are attributable to commercial fertilizer use.
Mined inorganic fertilizers have been used for many centuries, whereas chemically synthesized inorganic fertilizers were only widely developed during the industrial revolution. Increased understanding and use of fertilizers were important parts of the pre-industrial British Agricultural Revolution and the industrial Green Revolution of the 20th century.
Inorganic fertilizer use has also significantly supported global population growth — it has been estimated that almost half the people on the Earth are currently fed as a result of synthetic nitrogen fertilizer use.
Fertilizers typically provide, in varying proportions:
The macronutrients are consumed in larger quantities and are present in plant tissue in quantities from 0.15% to 6.0% on a dry matter (0% moisture) basis (DM). Micronutrients are consumed in smaller quantities and are present in plant tissue on the order of parts per million (ppm), ranging from 0.15 to 400 ppm DM, or less than 0.04% DM.
Only three other macronutrients are required by all plants: carbon, hydrogen, and oxygen. These nutrients are supplied by water and carbon dioxide.
The nitrogen-rich fertilizer ammonium nitrate is also used as an oxidizing agent in improvised explosive devices, sometimes called fertilizer bombs, leading to sale regulations[citation needed].
This text uses material from Wikipedia, licensed under CC BY-SA
