Chemical Fertilizer Definition

Bioremediation Definition - Investopedia

Jun 23, 2020· Bioremediation: A branch of biotechnology which deals with the use of living organisms such as microbes and bacteria to remove contaminants, pollutants and toxins from soil and water ...

pH | Definition, Uses, & Facts | Britannica

pH, quantitative measure of the acidity or basicity of aqueous or other liquid solutions. The term, widely used in chemistry, biology, and agronomy, translates the values of the concentration of the hydrogen ion into numbers between 0 and 14. Learn more about pH.

Cadmium - Wikipedia

Cadmium is a chemical element with the symbol Cd and atomic number 48. This soft, silvery-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury.Like zinc, it demonstrates oxidation state +2 in most of its compounds, and like mercury, it has a lower melting point than the transition metals in groups 3 through 11. ...

Urea Fertilizer N46% - ISHTAR COMPANY LLC

Urea Fertilizer N46% (Carbamide) Urea, also known as carbamide, is an organic compound with chemical formula CO(NH2)2. It is a colorless, odorless solid, …

Fertilizer Numbers: What They Mean and How to Use Them to ...

By definition, a plant fertilizer is either a chemical or a natural material added to the soil to increase its fertility and aid in plant growth. Your mother may have drenched her plants with a blue, water-soluble chemical fertilizer every week and maybe you think you should do the same. But, there''s been a major shift in thinking over the ...

urea | Definition, Formula, Production, Uses, & Facts ...

May 07, 2021· Urea, the diamide of carbonic acid. It has important uses as a fertilizer and feed supplement, as well as a starting material for the manufacture of plastics and drugs. It is a colorless, crystalline substance that melts at 132.7 degrees C (271 degrees F) and decomposes before boiling.

Organic horticulture - Wikipedia

Organic horticulture is the science and art of growing fruits, vegetables, flowers, or ornamental plants by following the essential principles of organic agriculture in soil building and conservation, pest management, and heirloom variety preservation.. The Latin words hortus (garden plant) and cultura (culture) together form horticulture, classically defined as the culture or growing of ...

Treated - definition of treated by The Free Dictionary

treat (trēt) v. treat·ed, treat·ing, treats 1. To act or behave in a specified manner toward: treated me fairly. 2. To regard and handle in a certain way. Often used with as: treated the matter as a joke. 3. To deal with in writing or speech; discuss: a book that treats all aspects of health care. 4. To deal with or represent artistically in a ...

Herbicide | Definition of Herbicide by Merriam-Webster

Herbicide definition is - an agent used to destroy or inhibit plant growth.

What Is a Nucleotide? Definition, Structure, and Function

Phosphates are a chemical derivative of phosphoric acid. You might''ve heard of phosphate when discussing certain items—inorganic phosphates are used in things such as fertilizer and laundry detergent. Naturally occurring phosphates, however, are an integral part of the formation of nucleotides.

phosphorus | Definition, Uses, & Facts | Britannica

Phosphorus, chemical element of the nitrogen group that is a soft waxy solid at room temperature. ... About 95 percent of the phosphate rock mined in the United States is used to make fertilizer or food supplements for animals. Concerns have arisen about phosphorus use, however. Most of the phosphorus is wasted on its journey from mining to ...

Marble: Metamorphic Rock: Pictures, Definition, Properties

What is Marble? Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. It is composed primarily of the mineral calcite (CaCO 3) and usually contains other minerals, such as clay minerals, micas, quartz, pyrite, iron oxides, and graphite.. Under the conditions of metamorphism, the calcite in the limestone recrystallizes to form a rock that ...

LDPE Chemical Compatibility Chart - CP Lab Safety

LDPE Chemical Compatibility Chart: Check the chemical compatibility of LDPE (low density polyethylene) with various chemicals, solvents, alcohols and other products.. LDPE is defined by a density range of 0.910–0.940 g/cm3. It is not reactive at room temperatures, except by strong oxidizing agents, and some solvents cause swelling.

Fertilizer - Wikipedia

A fertilizer (American English) or fertiliser (British English; see spelling differences) is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients.Fertilizers may be distinct from materials or other non-nutrient soil amendments.Many sources of fertilizer exist, both natural and industrially produced.

What Does NPK Stand for on a Fertilizer Label?

Dec 17, 2020· Use compost instead of chemical fertilizer. Get your soil tested. Apply a slow-release fertilizer, which is less likely to harm plants to any great degree. Role of Each Plant Nutrient . To advance this discussion from the academic to the practical, let''s take a brief look at the roles that the constituents of NPK play in plant growth.

Controlled Variable Definition - ThoughtCo

Jan 30, 2020· A controlled variable is one which the researcher holds constant (controls) during an experiment. It is also known as a constant variable or simply as a "control." The control variable is not part of an experiment itself—it is neither the independent nor dependent variable—but it is important because it can have an effect on the results. It is not the same as a control group.

Phosphate Group - Definition and Functions | Biology ...

Apr 28, 2017· Phosphate Group Definition. Phosphate, chemical formula PO 4 3-, is a chemical compound made up of one phosphorus and four oxygen atoms.When it is attached to a molecule containing carbon, it is called a phosphate group. It is found in the genetic material DNA and RNA, and is also in molecules such as adenosine triphosphate (ATP) that provide energy to cells.

Ammonification - Definition and Function | Biology Dictionary

Apr 27, 2017· Ammonification Definition. Ammonification is part of the five-step nitrogen cycle, which is crucial for providing living organisms with the essential nitrogen that they need.Ammonification itself takes place thanks to the existence of decomposers, which break down animal and plant cells into simpler substances, making nutrients available in the ecosystem.

Chemical - definition of chemical by The Free Dictionary

chem·i·cal (kĕm′ĭ-kəl) adj. 1. Of or relating to chemistry. 2. Of or relating to the properties or actions of chemicals. 3. Of or relating to chemical weapons: chemical warfare. n. 1. A substance with a distinct molecular composition that is produced by or used in a chemical process. 2. A drug, especially an illicit or addictive one. [Obsolete ...

FERTILIZER | meaning in the Cambridge English Dictionary

fertilizer definition: 1. a natural or chemical substance that is spread on the land or given to plants, to make plants…. Learn more.

Fertilizer | Definition of Fertilizer by Merriam-Webster

Fertilizer definition is - one that fertilizes; specifically : a substance (such as manure or a chemical mixture) used to make soil more fertile. How to use fertilizer in a sentence.

CHEMICAL | meaning in the Cambridge English Dictionary

chemical definition: 1. any basic substance that is used in or produced by a reaction involving changes to atoms or…. Learn more.

Chemical | Definition of Chemical at Dictionary

Chemical definition, a substance produced by or used in a chemical process. See more.

Urea - Wikipedia

Urea, also known as carbamide, is an organic compound with chemical formula CO(NH 2) 2.This amide has two –NH 2 groups joined by a carbonyl (C=O) functional group.. Urea serves an important role in the metabolism of nitrogen-containing compounds by animals and is the main nitrogen-containing substance in the urine of mammals is a colorless, odorless solid, highly soluble in water, and ...