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Wikipedia About Fertilizer

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They typically provide, in varying proportions, the three major plant nutrients (nitrogen, phosphorus, potassium: N-P-K), the secondary plant nutrients (calcium, sulfur, magnesium) and sometimes trace elements (or micronutrients) with a role in plant or animal nutrition: boron, chlorine, manganese, iron, zinc, copper, molybdenum and (in some countries) selenium.

Both organic and inorganic fertilizers were called "manure" derived from the French expression for manual tillage, but this term is now mostly restricted to organic manure.

Though nitrogen is plentiful in the earth's atmosphere, relatively few plants engage in nitrogen fixation (conversion of atmospheric nitrogen to a biologically useful form). Most plants thus require nitrogen compounds to be present in the soil in which they grow.

It is believed that organic agricultural methods are more environmentally friendly and better maintain soil organic matter levels. However, there are no generally accepted scientific studies that support this supposition. Regardless the source, fertilization results in increased unharvested plant biomass left on the soil surface and crop residues remaining in the soil. Too much of a vital nutrient can be as detrimental as not enough. "Fertilizer burn" can occur when too much fertilizer is applied, resulting in a drying out of the roots and damage or even death of the plant. Organic fertilizers are just as likely to burn as inorganic fertilizers. If excess nitrogen is present the plants will begin to exude nitrogen from the leafy areas. This is called guttation.

History

While manure, cinder and ironmaking slag have been used to improve crops for centuries, the use of fertilizers is arguably one of the great innovations of the Agricultural Revolution of the 19th Century.

Key people

In the 1730s, Viscount Charles Townshend (16741738) first studied the improving effects of the four crop rotation system that he had observed in use in Flanders. For this he gained the nickname of Turnip Townshend.

Chemist Justus von Liebig (18031883) contributed greatly to the advancement in the understanding of plant nutrition. His influential works first denounced the vitalist theory of humus, arguing first the importance of ammonia, and later the importance of inorganic minerals. Primarily his work succeeded in setting out questions for agricultural science to address over the next 50 years. In England he attempted to implement his theories commercially through a fertilizer created by treating phosphate of lime in bone meal with sulfuric acid. Although it was much less expensive than the guano that was used at the time, it failed because it was not able to be properly absorbed by crops.

Search results for Fertilizer

Comparing Fertilizer Materials - Agronomy Facts 6

An Agronomy fact sheet written by faculty from the Department of Crop and Soil Sciences at Penn State about various fertilizers.cropsoil.psu.edu/extension/facts/agfacts6.cfm

Fertilizer - New World Encyclopedia

3 Inorganic fertilizers (mineral fertilizer) 3.1 Macronutrients and micronutrients ... 3.4 Nitrogen fertilizer. 3.5 Health and sustainability issues. 4 Organic ...www.newworldencyclopedia.org/entry/Fertilizer

HowStuffWorks "What is fertilizer and why do plants need it?"

What is fertilizer and why do plants need it? What do the three numbers on most bags of fertilizer mean? ... All-Purpose Fertilizer ... Greenview Spring Fertilizer ...www.howstuffworks.com/question181.htm

Organic Fertilizers

Natural Science organic fertilizers. Organic fertilizers for golf courses, lawn ... Natural Science Organic Fertilizer. Natural Science for Golf Greens & Fairways ...www.fertilizers.net/

Fertilizer

Phosphate fertilizer comes mainly from phosphate rock in widely distributed marine deposits. ... the synthesis of nitrogen fertilizer and the large reserves of ...www-formal.stanford.edu/jmc/nature/node23.html

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News about Fertilizer

Viterra Net Income Rises 69% on Demand for Fertilizer (Update3)

Bloomberg.comSept. 10 (Bloomberg) -- Viterra Inc. , Canada's largest grain handler, said third-quarter profit rose 69 percent amid higher demand for fertilizers, seeds and crop-protection products.http://www.bloomberg.com/apps/news?pid=20601082&sid=akRqk_fe...

Converted Organics' Liquid Fertilizer Increases Cranberry Yield, Decreases Fungus for Massachusetts Grower

Centre Daily TimesConverted Organics Inc. (NASDAQ:COIN) announced today that use of the Company's all-natural, organic Liquid Concentrate fertilizer in a Massachusetts cranberry bog field trial resulted in faster growth and higher yields than obtained with conventional fertilizers previously used by the grower.http://www.centredaily.com/business/story/827579.html

Agrium Incorporated: Zacks Rank Buy

Zacks.com via Yahoo! Finance Agrium is cashing in on high fertilizer prices as earnings soar.http://biz.yahoo.com/zacks/080911/zacks8549000000commentary....

PHILANTHROPIC $TAMP ACT

New York PostBond trader Bill Gross will auction off his British Empire stamp collection for an expected $1.5 million to benefit a Columbia University project that delivers seeds and fertilizer to Africa. The Oct. 3 auction will be held at the Spink Shreves...http://www.nypost.com/seven/09112008/news/regionalnews/phila...

Chemical exposure injures man; hospital E.R. evacuated

WOOD TV 8 Grand RapidsA medical director says a high concentration of fertilizer is what led to a man being injured and the evacuation of a hospital's emergency room.http://www.woodtv.com/global/story.asp?s=8991458

News about Fertilizer

BEFORE THE G-8 SUMMIT

Der SpiegelTo answer the "dramatic nature" of the crisis, the commission recommends "heightened agricultural productivity" in developing nations, a "quick supply of seeds, fertilizer and farm equipment to selected regions" as well as "the instant abolition of ... http://www.spiegel.de/international/world/0,1518,564063,00.h...

Endangered Destinations

US News and World ReportThe Queensland state government also put a Reef Water Quality Protection Plan into action to decrease silt and runoff of agricultural chemicals and fertilizer from nearby fields.http://www.usnews.com/articles/science/environment/2008/05/1...

Australia Stocks: Babcock, Boart, Centro, Oil Search, Incitec

BloombergIncitec Pivot Ltd. (IPL AU), Australia's largest fertilizer maker, advanced A$3.50, or 2.7 percent, to A$132.50, the index's eighth-biggest gainer.http://www.bloomberg.com/apps/news?pid=20601084&sid=azUejYGC...

WaMu Declines 30%, Adding to Its Rout

Wall Street JournalEnergy driller Devon Energy rose 4.34, or 5%, to 91.67; fertilizer maker Mosaic added 5.83, or 7.6%, to 82.84; and coal miner Consol Energy rose 4.30, or 8.9%, to 52.39.http://online.wsj.com/article/SB122105627184719379.html?mod=...

Supply glut worries Chinese pearl industry

International Herald TribuneThe disorderly growth of freshwater pearl cultivation in some regions, resulting in the dumping of large quantities of fertilizer into lakes and reservoirs, has seriously damaged those water bodies," said a document on the Web site of the Agriculture ... http://www.iht.com/articles/2008/09/10/business/pearl.php

Search results for Fertilizer

The Fertilizer Institute

TFI is the trade association representing the fertilizer industry.http://www.tfi.org/

Fertilizer - Fertilizer Home

To the novice, the subject of lawn fertilizer seems simple enough. After all, what’s so hard about periodically sprinkling fertilizer over your lawn and then watering ... http://fertilizersmart.com

Holland Fertilizer Company, Inc.

479 Piedmont Hwy, Cedartown, Ga 30125| Phone: 770-749-9133| Fax: 770-749-8733| Owner Steve Holland hollandco@bellsouth.nethttp://hollandfertilizer.com

fertilizer

Use Organic Grass Fertilizer for a Healthier Lawn Health is always the number one concern we all have at any given time; we try to eat well, exercise and follow doctors orders in ... http://fertilizerhome.com

Frontier Fertilizer

Quality Assured: Thank you for visiting our website. Frontier Fertilizer & Chemical was founded in 1994 and began operating at our Hurlwood, Texas location in January 1997.http://frontierfertilizer.com
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The Food Chain: Fertilizer CrisisWorldwide pressures on chemical fertilizer supplies have some Iowa farmers falling back on manure for soil nutrients.Flash - Video

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Answers for Fertilizer

staceyfinchrnWhat is the best fertilizer to use for my Dendrobiums?staceyfinchrnThe best fertilizer for all plants is compost. Chemical fertilizers are harmful to earthworms and and other microbial soil life. They also deposit toxic nitrates in groundwater, depleting a vital nonr...m tCan i put down starter fertilizer after grass seed has germinated?m tWhen I plant grass seed, I fertilize it when I sow the seed and again after it comes up. Neither of these fertilizer applications are heavy. The whole point of fertilizing it at this stage is to get...NOANSWERWhat kind of fertilizer do I use for arbivitaes and for verbernums?NOANSWERHolly*Tone is a good organic fertilizer for these plants. Robert is giving you confusing and incorrect info. He says use a balanced fert (like 10-10-10 is a balanced fert) but then tells you get one...Mike ZWhat kind of fertilizer do I need to promote new grass growth?Mike ZHi Mike You need nitrogen to green up your lawn. When you go to buy the fertilizer, just ask about the ratio for your particular type of lawn. Your local green house or home and garden center s...Love4MizzouHow important is fertilizer when seeding yard?Love4MizzouAs "d2" stated, you should wait a few weeks until it gets established. You don't want excessive top growth in the early stages. The roots are the main concern at this juncture. The energy needs to be ...
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