Agronomy: Difference between revisions
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{{Distinguish|text=[[agricultural economics]] (also known as agronomics)}} |
{{Distinguish|text=[[agricultural economics]] (also known as agronomics)}} |
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{{Short description|Science |
{{Short description|Science of producing and using plants}} |
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{{broader|Agricultural science}} |
{{broader|Agricultural science}}{{See also|Agriculturist}} |
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{{Agriculture}} |
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'''Agronomy''' is the science and technology of producing and using [[plant]]s by [[agriculture]] for [[food]], [[fuel]], [[fiber]], chemicals, recreation, or land conservation. Agronomy has come to include research of [[plant genetics]], [[plant physiology]], [[meteorology]], and [[soil science]]. It is the application of a combination of sciences such as [[biology]], [[chemistry]], [[economics]], [[ecology]], [[earth science]], and [[genetics]]. Professionals of agronomy are termed [[Agriculturist|agronomists]]. |
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==Plant breeding== |
==Plant breeding== |
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{{Main|Plant breeding}} |
{{Main|Plant breeding}} |
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[[Image:Research- alternative crops.jpg|thumb|left|An agronomist field |
[[Image:Research- alternative crops.jpg|thumb|left|An agronomist, field-sampling a trial plot of flax]] |
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This |
This topic of agronomy involves [[selective breeding]] of plants to produce the best [[crop]]s for various conditions. Plant breeding has increased [[crop yield]]s and has improved the [[nutritional value]] of numerous crops, including [[maize|corn]], [[soybeans]], and [[wheat]]. It has also resulted in the development of new types of plants. For example, a [[Hybrid (biology)|hybrid]] grain named [[triticale]] was produced by crossbreeding rye and wheat. Triticale contains more usable [[protein]] than does either rye or wheat. Agronomy has also been instrumental for fruit and vegetable production research. Furthermore, the application of plant breeding for turfgrass development has resulted in a reduction in the demand for fertilizer and water inputs (requirements), as well as turf-types with higher disease resistance. |
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==Biotechnology== |
==Biotechnology== |
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[[File:Flickr - The U.S. Army - www.Army.mil (230).jpg|thumb|[[Purdue University]] agronomy professor George Van Scoyoc explains the difference between forest and prairie soils to soldiers of the [[Indiana National Guard]]'s [[Agribusiness]] Development Team at the [[Beck Agricultural Center]] in [[West Lafayette, Indiana]]]] |
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[[Image:Research-mapping plant genomes.jpg|thumb|An agronomist mapping a plant [[genome]]]] |
[[Image:Research-mapping plant genomes.jpg|thumb|An agronomist mapping a plant [[genome]]]] |
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Agronomists use [[biotechnology]] to extend and expedite the development of desired |
Agronomists use [[biotechnology]] to extend and expedite the development of desired characteristics.<ref>Georgetown International Environmental Law Review</ref> Biotechnology is often a laboratory activity requiring field testing of new crop varieties that are developed. |
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In addition to increasing crop yields agronomic biotechnology is |
In addition to increasing crop yields agronomic biotechnology is being applied increasingly for novel uses other than food. For example, [[oilseed]] is at present used mainly for margarine and other food oils, but it can be modified to produce fatty acids for [[detergent]]s, substitute fuels and [[petrochemical]]s. |
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==Soil science== |
==Soil science== |
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{{Main|Agricultural soil science}} |
{{Main|Agricultural soil science}} |
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Agronomists study sustainable ways to make [[soil]]s more productive and profitable |
Agronomists study sustainable ways to make [[soil]]s more productive and profitable. They classify soils and analyze them to determine whether they contain nutrients vital for plant growth. Common macronutrients analyzed include compounds of [[nitrogen]], [[phosphorus]], [[potassium]], [[calcium]], [[magnesium]], and [[sulfur]]. Soil is also assessed for several micronutrients, like [[zinc]] and [[boron]]. The percentage of organic matter, [[soil pH]], and nutrient holding capacity ([[cation exchange capacity]]) are tested in a regional laboratory. Agronomists will interpret these laboratory reports and make recommendations to modify soil nutrients for optimal plant growth.<ref>{{cite book|last=Hoeft|first=Robert G.|title=Modern Corn and Soybean Production|year=2000|publisher=MCSP Publications |asin=B0006RLD8U <!--|isbn=00108770--> |pages=107 to 171}}</ref> |
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===Soil conservation=== |
===Soil conservation=== |
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Additionally, agronomists develop methods to preserve soil and decrease the effects of [erosion] by wind and water. For example, a technique known as [[contour plowing]] may be used to prevent soil erosion and conserve rainfall. Researchers of agronomy also seek ways to use the soil more effectively for solving other problems. Such problems include the disposal of human and animal [[manure]], [[water pollution]], and [[pesticide]] accumulation in the soil, as well as preserving the soil for future generations such as the burning of paddocks after crop production. Pasture management techniques include [[no-till farming]], planting of soil-binding grasses along contours on steep slopes, and using contour drains of depths as much as 1 metre.<ref>{{Cite book|url=https://books.google.com/books?id=Rss4DwAAQBAJ&q=no-tilling+crops%2C+soil-binding+grasses+and+contour+drains&pg=PA236|title=Fundamentals of Agriculture (ICAR-NET, JRF, SRF, CSIR-NET, UPSC & IFS)|last1=Arya|first1=R. L.|last2=Arya|first2=S.|last3=Arya|first3=Renu|last4=Kumar|first4=J.|date=2015-01-01|publisher=Scientific Publishers|isbn=978-93-86102-36-2|language=en}}</ref> |
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==Agroecology== |
==Agroecology== |
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[[Agroecology]] is the management of agricultural systems with an emphasis on ecological and environmental |
[[Agroecology]] is the management of agricultural systems with an emphasis on ecological and environmental applications.<ref>{{cite web |url=http://www.agron.iastate.edu/academic/undergraduate/options/agro_ecol.aspx |
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|title=Iowa State University: Undergraduate Program - Agroecology <!--|access-date=25 December 2007--> |
|title=Iowa State University: Undergraduate Program - Agroecology <!--|access-date=25 December 2007--> |
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|archive-url=https://web.archive.org/web/20081007045315/http://www.agron.iastate.edu/academic/undergraduate/options/agro_ecol.aspx |
|archive-url=https://web.archive.org/web/20081007045315/http://www.agron.iastate.edu/academic/undergraduate/options/agro_ecol.aspx |
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|archive-date=7 October 2008}}</ref> This |
|archive-date=7 October 2008}}</ref> This topic is associated closely with work for [[sustainable agriculture]], [[organic farming]], and [[Food systems|alternative food systems]] and the development of alternative cropping systems.<ref>[https://rosenberg-agronom.com/ Rosenberg Agronom]</ref> |
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==Theoretical modeling== |
==Theoretical modeling== |
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[[Theoretical production ecology]] |
[[Theoretical production ecology]] is the quantitative study of the growth of crops. The plant is treated as a kind of biological factory, which processes [[light]], [[carbon dioxide]], [[water]], and [[Plant nutrition|nutrients]] into harvestable products. The main parameters are temperature, sunlight, standing crop biomass, plant production distribution, and nutrient and water supply.{{citation needed|date=June 2018}} |
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==See also== |
==See also== |
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* [[Agricultural policy]] |
* [[Agricultural policy]] |
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* [[Agroecology]] |
* [[Agroecology]] |
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* [[Agrology]] |
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* [[Agrophysics]] |
* [[Agrophysics]] |
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* [[Crop farming]] |
* [[Crop farming]] |
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*[https://www.soils.org/ Soil Science Society of America (SSSA)] |
*[https://www.soils.org/ Soil Science Society of America (SSSA)] |
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*[http://www.european-agronomy.org/ European Society for Agronomy] |
*[http://www.european-agronomy.org/ European Society for Agronomy] |
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*[ |
*[https://www.nal.usda.gov/main/ The National Agricultural Library (NAL)] – Comprehensive agricultural library. |
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*[http://www.fisaonline.de/index.php?act=home&lang=en Information System for Agriculture and Food Research] |
*[http://www.fisaonline.de/index.php?act=home&lang=en Information System for Agriculture and Food Research] |
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{{Agriculture footer}} |
{{Agriculture footer}} |
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{{Botany}} |
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{{Authority control}} |
{{Authority control}} |
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[[Category:Agronomy| ]] |
[[Category:Agronomy| ]] |
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[[Category:Agricultural science|.]] |
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[[Category:Applied sciences]] |
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[[Category:Plant agriculture]] |
Latest revision as of 03:03, 15 December 2024
Agriculture |
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Agriculture portal |
Agronomy is the science and technology of producing and using plants by agriculture for food, fuel, fiber, chemicals, recreation, or land conservation. Agronomy has come to include research of plant genetics, plant physiology, meteorology, and soil science. It is the application of a combination of sciences such as biology, chemistry, economics, ecology, earth science, and genetics. Professionals of agronomy are termed agronomists.
Plant breeding
[edit]This topic of agronomy involves selective breeding of plants to produce the best crops for various conditions. Plant breeding has increased crop yields and has improved the nutritional value of numerous crops, including corn, soybeans, and wheat. It has also resulted in the development of new types of plants. For example, a hybrid grain named triticale was produced by crossbreeding rye and wheat. Triticale contains more usable protein than does either rye or wheat. Agronomy has also been instrumental for fruit and vegetable production research. Furthermore, the application of plant breeding for turfgrass development has resulted in a reduction in the demand for fertilizer and water inputs (requirements), as well as turf-types with higher disease resistance.
Biotechnology
[edit]Agronomists use biotechnology to extend and expedite the development of desired characteristics.[1] Biotechnology is often a laboratory activity requiring field testing of new crop varieties that are developed.
In addition to increasing crop yields agronomic biotechnology is being applied increasingly for novel uses other than food. For example, oilseed is at present used mainly for margarine and other food oils, but it can be modified to produce fatty acids for detergents, substitute fuels and petrochemicals.
Soil science
[edit]Agronomists study sustainable ways to make soils more productive and profitable. They classify soils and analyze them to determine whether they contain nutrients vital for plant growth. Common macronutrients analyzed include compounds of nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. Soil is also assessed for several micronutrients, like zinc and boron. The percentage of organic matter, soil pH, and nutrient holding capacity (cation exchange capacity) are tested in a regional laboratory. Agronomists will interpret these laboratory reports and make recommendations to modify soil nutrients for optimal plant growth.[2]
Soil conservation
[edit]Additionally, agronomists develop methods to preserve soil and decrease the effects of [erosion] by wind and water. For example, a technique known as contour plowing may be used to prevent soil erosion and conserve rainfall. Researchers of agronomy also seek ways to use the soil more effectively for solving other problems. Such problems include the disposal of human and animal manure, water pollution, and pesticide accumulation in the soil, as well as preserving the soil for future generations such as the burning of paddocks after crop production. Pasture management techniques include no-till farming, planting of soil-binding grasses along contours on steep slopes, and using contour drains of depths as much as 1 metre.[3]
Agroecology
[edit]Agroecology is the management of agricultural systems with an emphasis on ecological and environmental applications.[4] This topic is associated closely with work for sustainable agriculture, organic farming, and alternative food systems and the development of alternative cropping systems.[5]
Theoretical modeling
[edit]Theoretical production ecology is the quantitative study of the growth of crops. The plant is treated as a kind of biological factory, which processes light, carbon dioxide, water, and nutrients into harvestable products. The main parameters are temperature, sunlight, standing crop biomass, plant production distribution, and nutrient and water supply.[citation needed]
See also
[edit]- Agricultural engineering
- Agricultural policy
- Agroecology
- Agrophysics
- Crop farming
- Food systems
- Horticulture
- Green Revolution
- Vegetable farming
References
[edit]- ^ Georgetown International Environmental Law Review
- ^ Hoeft, Robert G. (2000). Modern Corn and Soybean Production. MCSP Publications. pp. 107 to 171. ASIN B0006RLD8U.
- ^ Arya, R. L.; Arya, S.; Arya, Renu; Kumar, J. (2015-01-01). Fundamentals of Agriculture (ICAR-NET, JRF, SRF, CSIR-NET, UPSC & IFS). Scientific Publishers. ISBN 978-93-86102-36-2.
- ^ "Iowa State University: Undergraduate Program - Agroecology". Archived from the original on 7 October 2008.
- ^ Rosenberg Agronom
Bibliography
[edit]- Wendy B. Murphy, The Future World of Agriculture, Watts, 1984.
- Antonio Saltini, Storia delle scienze agrarie, 4 vols, Bologna 1984–89, ISBN 88-206-2412-5, ISBN 88-206-2413-3, ISBN 88-206-2414-1, ISBN 88-206-2415-X