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nutrients | A Wisdom Archive on nutrients | | nutrients A selection of articles related to nutrients | |
| We recommend this article: nutrients - 1, and also this: nutrients - 2. |
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nutrients, Nutrient, Nutrient - Nutrients and the body, Nutrient - Nutrients and the environment
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| ARTICLES RELATED TO nutrients | | | |  nutrients: Encyclopedia II - Soil pH - Nutrient availability in relation to soil pHThe majority of food crops prefer a neutral or slightly acidic soil. Some plants however prefer more acidic (e.g., potatoes, strawberries) or alkaline (brassicas) conditions.
During the acidification process the decrease in pH result in a release of positively charged ions (cations) from the cation exchange surfaces (organic matter & clay minerals). In the short term acidification thus increases the concentration of potassium (K), magnesium (Mg), and calcium (Ca)) in soil solution. Once the cation exchange surface has become deple ...
See also:Soil pH, Soil pH - Nutrient availability in relation to soil pH, Soil pH - Soils and acidity, Soil pH - Soil life and pH, Soil pH - pH and plant diseases, Soil pH - Determining pH, Soil pH - Altering soil pH Read more here: » Soil pH: Encyclopedia II - Soil pH - Nutrient availability in relation to soil pH |
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| | | | | nutrients: Encyclopedia II - Rooibos - Antioxidants & Flavonoids found in Rooibos Some antioxidants are called polyphenols because these substances contain a phenolic ring in their chemical structure. Polyphenols are common in plants; they act as pigments and sunscreens, as insect attractants and repellants, and as antimicrobials and antioxidants. The polyphenol group is further divided into subgroups such as flavonoids and phenolic acids. As described in this section, laboratory studies have found that rooibos tea contains polyphenol antioxidants, includi ...
See also:Rooibos, Rooibos - Processing, Rooibos - Flavor, Rooibos - Preparation, Rooibos - Antioxidants & Flavonoids found in Rooibos, Rooibos - Nutrient Information, Rooibos - Health Research Read more here: » Rooibos: Encyclopedia II - Rooibos - Antioxidants & Flavonoids found in Rooibos |
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| | | | | nutrients: Encyclopedia II - Healthy diet - Government involvement Throughout the past 50 years, governments throughout the world have been involved in the pursuit of engaging with their constituencies in attempts to help them eat healthily, and to remove strain on the governmental health services. Several problems, however have overshadowed government schemes and involvements; particularly media coverage of mass-produced, processed, "snack" or "sweet" products directly marketed at children.
Hea ...
See also:Healthy diet, Healthy diet - Healthy diet, Healthy diet - Definition, Healthy diet - Food choice, Healthy diet - How much to eat?, Healthy diet - Regulation of intake, Healthy diet - Eating more or less of particular nutrients, Healthy diet - Government involvement, Healthy diet - Problems with government approaches Read more here: » Healthy diet: Encyclopedia II - Healthy diet - Government involvement |
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| | | | | nutrients: Encyclopedia II - Hydroponics - Media One of the most obvious decisions a hydroponicist has to make is which medium they should use. Different media are appropriate for different growing techniques.
Hydroponics - Expanded Clay.
Also known as 'hydroton'(this is a trademarked name), these small round baked spheres of clay are inert and are extremely suitable for any hydroponic system where all the nutrients are carefully controlled in the water. Clay pebbles can be reused, provided they are cleaned thoroughly in-between crops. Baked clay pebbles are highly porous, yet irregularly shaped to create an ideal bal ...
See also:Hydroponics, Hydroponics - Uses, Hydroponics - History, Hydroponics - Techniques, Hydroponics - Passive hydroponics, Hydroponics - Flood and Drain or Ebb and Flow, Hydroponics - Deep Water CultureDWC, Hydroponics - Drip feeding, Hydroponics - Wick feeding, Hydroponics - Raft cultivation, Hydroponics - Nutrient film technique NFT, Hydroponics - Aeroponics, Hydroponics - Media, Hydroponics - Expanded Clay, Hydroponics - Rockwool, Hydroponics - Coco Coir, Hydroponics - Perlite, Hydroponics - Vermiculite, Hydroponics - Commercial, Hydroponics - Problems with hydroponics, Hydroponics - Present and future Read more here: » Hydroponics: Encyclopedia II - Hydroponics - Media |
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| | | | | nutrients: Encyclopedia II - Cat food - Ingredients of Cat Food Many popular brands of cat food are made from what would otherwise be waste products of the meat industry. Some cat experts claim that this practice, as well as the overly processed nature of dry cat food, is responsible for many of the age-related ailments of cats. Additionally, many major brand-name cat foods are primarily grain-based, often containing large amounts of corn or rice supplemented with meats and essential vitamins, and usually saturated with 'digest,' a euphemistic term for real or synthetic cat vomit, to attract the cat as cats are prone ...
See also:Cat food, Cat food - Ingredients of Cat Food, Cat food - Forms of Commercial Cat Food, Cat food - Cat Food Nutrient Profiles, Cat food - Cat food brands, Cat food - Further Information Read more here: » Cat food: Encyclopedia II - Cat food - Ingredients of Cat Food |
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| | | | | nutrients: Encyclopedia II - Soil pH - pH and plant diseases Many plant diseases are caused or exacerbated by extremes of pH, sometimes because this makes essential nutrients unavailable to crops or because the soil itself is unhealthy (see above). For example, chlorosis of leaf vegetables and potato scab occur in overly alkaline conditions, and acidic soils can cause clubroot in brassicas.
Soil pH - Determining pH.
pH is not constant in soil or water, but varies on a seasonal or even daily basis due to factors such as rainfall, biological growth within the soil, an ...
See also:Soil pH, Soil pH - Nutrient availability in relation to soil pH, Soil pH - Soils and acidity, Soil pH - Soil life and pH, Soil pH - pH and plant diseases, Soil pH - Determining pH, Soil pH - Altering soil pH Read more here: » Soil pH: Encyclopedia II - Soil pH - pH and plant diseases |
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| | | | | | nutrients: Encyclopedia II - Cat food - Forms of Commercial Cat Food Store-bought cat food generally comes in either a kibble form, often called dry cat food, or a canned form. Very few brands of cat food come in semi-moist form, which is generally reserved for treats.
Dry food is generally sold in bulk, with a bag of dry food lasting days, months, or even years. Canned food generally comes in much smaller serving sizes, and common can sizes are 3oz, 5.5oz, and 13oz.
Many cat enthusiasts and veterinarians recommend a diet consisting largely or entirely of canned cat food. One of the reasons for ...
See also:Cat food, Cat food - Ingredients of Cat Food, Cat food - Forms of Commercial Cat Food, Cat food - Cat Food Nutrient Profiles, Cat food - Cat food brands, Cat food - Further Information Read more here: » Cat food: Encyclopedia II - Cat food - Forms of Commercial Cat Food |
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| | | | | nutrients: Encyclopedia II - Hydroponics - Commercial Due to rising awareness of chemicals and other contaminants in the food supply, people are looking for more wholesome and safer alternatives. Fortunately, hydroponics is the exact fit for the consumer’s new requirements.
Some commercial installations use no pesticides or herbicides, preferring Integrated Pest Management Techniques. There is often a price premium willingly paid by consumers for produce which is labeled "Organic". This means that lawyers and lobbyists are paid to establish rules and laws determining exactly who can ch ...
See also:Hydroponics, Hydroponics - Uses, Hydroponics - History, Hydroponics - Techniques, Hydroponics - Passive hydroponics, Hydroponics - Flood and Drain or Ebb and Flow, Hydroponics - Deep Water CultureDWC, Hydroponics - Drip feeding, Hydroponics - Wick feeding, Hydroponics - Raft cultivation, Hydroponics - Nutrient film technique NFT, Hydroponics - Aeroponics, Hydroponics - Media, Hydroponics - Expanded Clay, Hydroponics - Rockwool, Hydroponics - Coco Coir, Hydroponics - Perlite, Hydroponics - Vermiculite, Hydroponics - Commercial, Hydroponics - Problems with hydroponics, Hydroponics - Present and future Read more here: » Hydroponics: Encyclopedia II - Hydroponics - Commercial |
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| | | | | nutrients: Encyclopedia II - Hydroponics - Problems with hydroponics Although hydroponics is useful and an expanding area of agriculture, it is not without problems. On large scale commercial operations computers can be used to help control the different factors, making hydroponics more complex and thus more expensive. However, the added benefit of computer controlled growing environments is that manual intervention is kept to a minimum. There are experimental computer systems which allow every aspect of the gro ...
See also:Hydroponics, Hydroponics - Uses, Hydroponics - History, Hydroponics - Techniques, Hydroponics - Passive hydroponics, Hydroponics - Flood and Drain or Ebb and Flow, Hydroponics - Deep Water CultureDWC, Hydroponics - Drip feeding, Hydroponics - Wick feeding, Hydroponics - Raft cultivation, Hydroponics - Nutrient film technique NFT, Hydroponics - Aeroponics, Hydroponics - Media, Hydroponics - Expanded Clay, Hydroponics - Rockwool, Hydroponics - Coco Coir, Hydroponics - Perlite, Hydroponics - Vermiculite, Hydroponics - Commercial, Hydroponics - Problems with hydroponics, Hydroponics - Present and future Read more here: » Hydroponics: Encyclopedia II - Hydroponics - Problems with hydroponics |
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| | | | | nutrients: Encyclopedia II - Hydroponics - Uses Hydroponics is useful to us in two main ways. First, it provides a more controlled environment for plant growth than soil thereby removing many unknowns from experiments. Second, many plant species produce more in less time and sometimes of higher quality, which under certain economic and environmental conditions, makes hydroponics growing more profitable to the farmer. With hydroponics there are no soil-borne diseases, weeds to pull, or soil to till, and plants can be placed very close to one another. This allows a large amount of food to b ...
See also:Hydroponics, Hydroponics - Uses, Hydroponics - History, Hydroponics - Techniques, Hydroponics - Passive hydroponics, Hydroponics - Flood and Drain or Ebb and Flow, Hydroponics - Deep Water CultureDWC, Hydroponics - Drip feeding, Hydroponics - Wick feeding, Hydroponics - Raft cultivation, Hydroponics - Nutrient film technique NFT, Hydroponics - Aeroponics, Hydroponics - Media, Hydroponics - Expanded Clay, Hydroponics - Rockwool, Hydroponics - Coco Coir, Hydroponics - Perlite, Hydroponics - Vermiculite, Hydroponics - Commercial, Hydroponics - Problems with hydroponics, Hydroponics - Present and future Read more here: » Hydroponics: Encyclopedia II - Hydroponics - Uses |
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| | | | | | | nutrients: Encyclopedia II - Hydroponics - History Some examples of earlier attempts in hydroponics are the Hanging Gardens of Babylon around 600 BC and the Floating Gardens of the Aztecs during the 11th century.
The first researcher of hydroponics was John Woodward of England, who, in 1699, grew plants in water to which he had added various soils. This demonstrated that the earth contained various substances which the plants needed besides water. In the mid-19th century, the German plant physiologists Sachs and Knop grew plants ...
See also:Hydroponics, Hydroponics - Uses, Hydroponics - History, Hydroponics - Techniques, Hydroponics - Passive hydroponics, Hydroponics - Flood and Drain or Ebb and Flow, Hydroponics - Deep Water CultureDWC, Hydroponics - Drip feeding, Hydroponics - Wick feeding, Hydroponics - Raft cultivation, Hydroponics - Nutrient film technique NFT, Hydroponics - Aeroponics, Hydroponics - Media, Hydroponics - Expanded Clay, Hydroponics - Rockwool, Hydroponics - Coco Coir, Hydroponics - Perlite, Hydroponics - Vermiculite, Hydroponics - Commercial, Hydroponics - Problems with hydroponics, Hydroponics - Present and future Read more here: » Hydroponics: Encyclopedia II - Hydroponics - History |
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| | | | | nutrients: Encyclopedia II - Infant formula - Controversy and Science In more recent years the use of infant formula, even in developed countries, has come under scrutiny. Infant formula use has been shown to instigate and aggravate several infant conditions including insulin dependent diabetes mellitus[1], middle ear infections, and several bacterial infections[2]. The association of infant formula and allergies is still controversial[3] and an association with lower cognitive development has also been found, althoug ...
See also:Infant formula, Infant formula - Nutrient content, Infant formula - Variations, Infant formula - History, Infant formula - Controversy and Science, Infant formula - Recent trends, Infant formula - Manufacturers Read more here: » Infant formula: Encyclopedia II - Infant formula - Controversy and Science |
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| | | | | | nutrients: Encyclopedia II - Soil pH - Soils and acidity Under conditions in which rainfall exceeds evapotranspiration (leaching) during most of the year, the basic soil cations (Ca, Mg, K) are gradually depleted and replaced with cations helds in colloidal soil reserves, leading to soil acidity. Clay soils often contain Fe and hydroxy Al, which affect the retention and availability of fertilizer cations and anions in acidic soils.
Soil acidification may also occur by addition of hydrogen, due to decomposition of organic matter, acid-forming fertilizers, and exchange of ...
See also:Soil pH, Soil pH - Nutrient availability in relation to soil pH, Soil pH - Soils and acidity, Soil pH - Soil life and pH, Soil pH - pH and plant diseases, Soil pH - Determining pH, Soil pH - Altering soil pH Read more here: » Soil pH: Encyclopedia II - Soil pH - Soils and acidity |
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| | | | | nutrients: Encyclopedia II - Infant formula - Controversy and Science In more recent years the use of infant formula, in undeveloped countries, has come under scrutiny. Some feel that infant formula use may aggravate several infant conditions including insulin dependent diabetes mellitus[1], middle ear infections, and several bacterial infections[2]. The association of infant formula and allergies is still extremely controversial[3] and an association with lower cognitive development has also been studied, althoug ...
See also:Infant formula, Infant formula - Nutrient content, Infant formula - Variations, Infant formula - History, Infant formula - Controversy and Science, Infant formula - Recent trends, Infant formula - Manufacturers Read more here: » Infant formula: Encyclopedia II - Infant formula - Controversy and Science |
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| | | | | | nutrients: Encyclopedia II - Food - Legal definition Western food law defines four categories of object as food:
any substance or product, whether processed, partially processed or unprocessed, intended to be, or reasonably expected to be ingested by humans whether of nutritional value or not;
water and other drinks;
chewing gum;
articles and substances used as an ingredient or component in the preparation of food.
Links to official legal definitions of food:
US federal definition of food
UK definition of f ...
See also:Food, Food - Legal definition, Food - Human eating habits, Food - Historical development, Food - Meals, Food - Food production or acquisition, Food - From plants, Food - From animals, Food - From neither animals or plants, Food - Food preparation, Food - Food manufacture, Food - Food trade, Food - Food retailing, Food - Food sufficiency, Food - Food safety, Food - Dietary habits, Food - Nutrients in food Read more here: » Food: Encyclopedia II - Food - Legal definition |
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| | | | | | nutrients: Encyclopedia II - Food - Human eating habits
Food - Historical development.
Humans are commonly believed to be omnivorous animals that can consume both plant and animal products. Evidence suggests that early Homo Sapiens employed Hunter-gatherer as their primary means of food collection. This involves combining stationary plant and fungal food sources (such as fruits, grains, roots, and mushrooms) with mobile animals which must be hunted and killed in order to be consumed. Additionally, it is believed that humans have used fire to prepare food prior to eating since their divergen ...
See also:Food, Food - Legal definition, Food - Human eating habits, Food - Historical development, Food - Meals, Food - Food production or acquisition, Food - From plants, Food - From animals, Food - From neither animals or plants, Food - Food preparation, Food - Food manufacture, Food - Food trade, Food - Food retailing, Food - Food sufficiency, Food - Food safety, Food - Dietary habits, Food - Nutrients in food Read more here: » Food: Encyclopedia II - Food - Human eating habits |
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