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Chemistry in Farming Project

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Samantha Viray

on 3 June 2013

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Transcript of Chemistry in Farming Project

Chemistry in Farming By: Samantha Viray Pesticides Organisms Purposes Chemical Reactions Links Links Chemical Reactions Pros and Cons Uses Uses Links Chemical Reactions Fertilizers To add the nutrients needed to help improve soil fertility and its texture
To help plant growth to increase
To help improve a plant's natural green color Three types of reactions in fertilizers:
Harber- Bosch process
Ostwald process
Bosch- Meiser process It's used for pest control- so any living thigs that can cause harm th the crops on the harm will be stopped.
It helps control diseases going around- Ex.~ malaria and typhus
To keep crops in good quality and productivity going The three types of Agro- pesticides needed to make this chemical varies depending on how you want it to work on your crops. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2984095/ Genetically Modified Organisms (GMO):
Fruits Vegetables- for herbicide tolerance
Grains- For insect resistance
Plants- For Vaccines
Animals- To have faster maturation Things like plants, fruits, veggies, grains, and other living things cause a genetic change in the process of farming. http://www.nature.com/scitable/topicpage/genetically-modified-organisms-gmos-transgenic-crops-and-732 http://www.ehow.com/about_6633787_use-fertilizers-farming.html http://www.ehow.com/facts_7440580_fertilizer-chemical-reactions.html http://www.ehow.com/facts_5950225_uses-fertilizers.html fertilizers also have phosphoric acid The Harber- Bosch process Hydrogen and nitrogen (atmospheric) are combined at high heat and pressure in the presence of a catalyst. When this happens, by the end of it, the fertilizer will cause another reaction, Ammonia. Ostwald process Bosch- Meisre process As Ammonia is processing, it produces nitric acid. With this, the two will begin to combine and form another chemical, ammonium nitrate. This chemical is often used for nitrogen fertilizer. Instead of having nitrogen fertilizer, you would just have the chemical ammonia. Ammonia, during this process, is used as a synthesizer urea fertilizer. http://www.chemistrydaily.com/chemistry/Pesticide http://www.cdpr.ca.gov/docs/emon/pubs/ehapreps/eh9403.pdf Cons Pros Improves productivity
Protects the crops from reducing
Helps control diseases from spreading
Keeps the quality of crops in the best condition http://satnet.org.ug/downloads/Agromisa%20Documents/Pesticides%20compounds%20%20use%20and%20hazards.pdf Agro- pesticides are divided into 3 different compounds:
Inorganic compounds
synthetic organic chemicals
bio- pesticides Inorganic Compounds Compounds like: sulphur, lead arsenate, copper and lime mixtures, borax and chlorates, and mercury compounds, were some of the early chemicals used for pesticides.
Inorganic chemicals were not meant to breakdown thus, this leads to toxic effects. Synthetic Organic Chemicals These kinds of chemicals come from mineral oil products. For example, insecticides, they were used rapidly throughout the world and later increased even more. As these chemicals continued to develop, very small amounts were put into our foods and environment. Bio- pesticides These chemicals come from plants and animals, often called organisms themselves. These include fungi, bacteria, viruses and nematodes, plants- derived chemical compounds, and insect pheromones. Some other chemicals like nicotine can be very hazardous. contaminates water (surface and ground water)
Creates soil contamination
Causes direct impact on humans
Contaminates our food Photosynthesis When plants begin to absorb sunlight, they transform six molecules of carbon dioxide and water into sugar and six oxygen molecules. Light reaction Dark Reaction http://www.ehow.com/list_7515173_chemical-reactions-used-farming-industry.html During the light reaction, the chlorophyll molecules begin to absorb certain wavelengths of light. Then the plant forms the molecules of adenosine triphosphate (ATP), which is where bonds of light energy is stored. After the light process, the dark process begins. The ATP begins to combine with carbon dioxide in the dark reaction to make sugar. this process is also known as the Calvin cycle. This is when the photosynthetic organisms provide food for the animals. It is necessary for live stock farmers as well as crop growers. Nitrogen Fixation Combustion For plants to grow, a certain type of nitrogen is needed. Nitrogen fixation is the process of when free nitrogen is broken apart then combined with other substances needed for a plant to grow. This process includes the use of fossil fuels. Its energy creates the type of conditions where nitrogen and hydrogen begin to react. During combustion, a compound will react with oxygen which would cause it to create heat. This would produce more molecules.
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