Loam - Revision history

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2022-05-06T18:03:00Z

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← Older revision		Revision as of 14:03, 6 May 2022
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	==Physical Properties==		==Physical Properties==
	[[File:Soil texture triangle.png\|thumb\|Photo courtesy of USDA Horticulture and soil science wiki]]		[[File:Soil texture triangle.png\|thumb\|Photo courtesy of USDA Horticulture and soil science wiki]]
	As seen in the figure to the right, the three types of soil can be combined in different amounts to form varying types of loam. The particle sizes range from large to small starting with [[sand]], which is defined as having a particle size greater than 63 µm, silt, with a particle size greater than 2 µm but less than 63 µm, and clay, with particle sizes smaller than 2 µm. [1] Loamy soil is the soil type most likely to contain an ample amount of [[humus]], or dead organic matter from plants and [[animals]], that fosters plant growth.		As seen in the figure to the right, the three types of soil can be combined in different amounts to form varying types of loam. The particle sizes range from large to small starting with [[sand]], which is defined as having a particle size greater than 63 µm, silt, with a particle size greater than 2 µm but less than 63 µm, and clay, with particle sizes smaller than 2 µm. [1] Loamy soil is the soil type most likely to contain an ample amount of [[humus]], or dead [[Organic Matter\|organic matter]] from plants and [[animals]], that fosters plant growth.

	==Life within the soil==		==Life within the soil==

Njhenshu: The LinkTitles extension automatically added links to existing pages (https://github.com/bovender/LinkTitles).

2021-04-29T17:04:41Z

Eralvut at 19:37, 10 April 2021

2021-04-10T19:37:46Z

← Older revision		Revision as of 15:37, 10 April 2021
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	Loam is a type of [[soil]] comprised of varying proportions of sand, silt, and [[clay]]. Loam was given the Latin name ''pinguis humus'' by the Roman poet Virgil. [2]		Loam is a type of [[soil]] comprised of varying proportions of [[sand]], [[silt]], and [[clay]]. Loam was given the Latin name ''pinguis humus'' by the Roman poet Virgil. [2]

	==Physical Properties==		==Physical Properties==
	[[File:Soil texture triangle.png\|thumb\|Photo courtesy of USDA Horticulture and soil science wiki]]		[[File:Soil texture triangle.png\|thumb\|Photo courtesy of USDA Horticulture and soil science wiki]]
	As seen in the figure to the right, the three types of soil can be combined in different amounts to form varying types of loam. The particle sizes range from large to small starting with sand, which is defined as having a particle size greater than 63 µm, silt, with a particle size greater than 2 µm but less than 63 µm, and clay, with particle sizes smaller than 2 µm. [1] Loamy soil is the soil type most likely to contain an ample amount of [[humus]], or dead organic matter from plants and animals, that fosters plant growth.		As seen in the figure to the right, the three types of soil can be combined in different amounts to form varying types of loam. The particle sizes range from large to small starting with [[sand]], which is defined as having a particle size greater than 63 µm, silt, with a particle size greater than 2 µm but less than 63 µm, and clay, with particle sizes smaller than 2 µm. [1] Loamy soil is the soil type most likely to contain an ample amount of [[humus]], or dead organic matter from plants and animals, that fosters plant growth.

	==Life within the soil==		==Life within the soil==

Dgkorff: /* Field Identification */

2018-05-07T16:02:22Z

Field Identification

← Older revision		Revision as of 12:02, 7 May 2018
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	===Feel Test===		===Feel Test===
	Involves rubbing a moist sample of the soil between fingers		Involves rubbing a moist sample of the soil between fingers
	Sand-feels gritty		*Sand- feels gritty
	Silt-feels smooth		*Silt- feels smooth
	Clay-feels sticky		*Clay- feels sticky
	===Ball Squeeze Test===		===Ball Squeeze Test===
			Involves squeezing a ball of moistened soil in the hand
			*Sand or sandy loam- break with only slight pressure, coarse textures
			*Sandy loams and silt loams- stay together but change shape easily
			*Clay or clayey loam- soil resists breaking, fine textured
	===Ribbon Test===		===Ribbon Test===
			Involves squeezing a moistened sample of soil in a ball between the thumb and forefinger.
			*Sandy soils- will not ribbon
			*Loam, silt, silty clay loam or clay loam- ribbons 1 to 2 inches
			*Sandy clay, silty clay, or clay soil ribbons more than 2 inches

	==References==		==References==

Dgkorff: /* Field Identification */

2018-05-07T15:51:36Z

Field Identification

← Older revision		Revision as of 11:51, 7 May 2018
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	In the absence of proper laboratory sampling and measuring equipment, a few different rudimentary tests can be performed manually to determine, roughly, the type of soil that makes up the patch of ground in question.		In the absence of proper laboratory sampling and measuring equipment, a few different rudimentary tests can be performed manually to determine, roughly, the type of soil that makes up the patch of ground in question.
	===Feel Test===		===Feel Test===
			Involves rubbing a moist sample of the soil between fingers
			Sand-feels gritty
			Silt-feels smooth
			Clay-feels sticky
	===Ball Squeeze Test===		===Ball Squeeze Test===

Dgkorff at 15:49, 7 May 2018

2018-05-07T15:49:28Z

@@ Line 16: / Line 16: @@
 ==Field Classification==
 Due to its mixture of sand, silt, and clay, a loam soil will have unique characteristics to look for. For the Soil Texture Triangle figure above, if one can determine the soil's percent by weight of any of the two soil characteristics, the subtracting the two known values from 100% will yield the percentage of the unknown value. When using the figure, one typically starts by following the sand value, first, but because as long as at least two values are known, this is not mandatory. [6]
 ==References==
@@ Line 29: / Line 37: @@
 [6] "The Textural Triangle" The University of Idaho. 2016. Retrieved 2018-04-27. http://oneplan.org/Water/soil-triangle.asp.

Dgkorff at 15:18, 7 May 2018

2018-05-07T15:18:37Z

← Older revision		Revision as of 11:18, 7 May 2018
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	Loam is a type of [[soil]] comprised of varying proportions of sand, silt, and clay. Loam was given the Latin name ''pinguis humus'' by the Roman poet Virgil. [2]		Loam is a type of [[soil]] comprised of varying proportions of sand, silt, and [[clay]]. Loam was given the Latin name ''pinguis humus'' by the Roman poet Virgil. [2]

	==Physical Properties==		==Physical Properties==
	[[File:Soil texture triangle.png\|thumb\|Photo courtesy of USDA Horticulture and soil science wiki]]		[[File:Soil texture triangle.png\|thumb\|Photo courtesy of USDA Horticulture and soil science wiki]]
	As seen in the figure to the right, the three types of soil can be combined in different amounts to form varying types of loam. The particle sizes range from large to small starting with sand, which is defined as having a particle size greater than 63 µm, silt, with a particle size greater than 2 µm but less than 63 µm, and clay, with particle sizes smaller than 2 µm. [1] Loamy soil is the soil type most likely to contain an ample amount of humus, or dead organic matter from plants and animals, that fosters plant growth.		As seen in the figure to the right, the three types of soil can be combined in different amounts to form varying types of loam. The particle sizes range from large to small starting with sand, which is defined as having a particle size greater than 63 µm, silt, with a particle size greater than 2 µm but less than 63 µm, and clay, with particle sizes smaller than 2 µm. [1] Loamy soil is the soil type most likely to contain an ample amount of [[humus]], or dead organic matter from plants and animals, that fosters plant growth.

	==Life within the soil==		==Life within the soil==

Dgkorff at 15:16, 7 May 2018

2018-05-07T15:16:17Z

← Older revision		Revision as of 11:16, 7 May 2018
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	Loam is a type of <soil> comprised of varying proportions of sand, silt, and clay. Loam was given the Latin name ''pinguis humus'' by the Roman poet Virgil. [2]		Loam is a type of [[soil]] comprised of varying proportions of sand, silt, and clay. Loam was given the Latin name ''pinguis humus'' by the Roman poet Virgil. [2]

	==Physical Properties==		==Physical Properties==

Dgkorff at 15:12, 7 May 2018

2018-05-07T15:12:07Z

← Older revision		Revision as of 11:12, 7 May 2018
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	Loam is a type of soil comprised of varying proportions of sand, silt, and clay. Loam was given the Latin name ''pinguis humus'' by the Roman poet Virgil. [2]		Loam is a type of <soil> comprised of varying proportions of sand, silt, and clay. Loam was given the Latin name ''pinguis humus'' by the Roman poet Virgil. [2]

	==Physical Properties==		==Physical Properties==

Jasonkac at 22:23, 27 April 2018

2018-04-27T22:23:20Z

← Older revision		Revision as of 18:23, 27 April 2018
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	==Physical Properties==		==Physical Properties==
	[[File:Soil texture triangle.png\|thumb\|Photo courtesy of USDA Horticulture and soil science wiki]]		[[File:Soil texture triangle.png\|thumb\|Photo courtesy of USDA Horticulture and soil science wiki]]
	As seen in the figure to the right, the three types of soil can be combined in different amounts to form varying types of loam. The particle sizes range from large to small starting with sand, which is defined as having a particle size greater than 63 µm, silt, with a particle size greater than 2 µm, and clay, with particle sizes smaller than 2 µm. [1] Loamy soil is the soil type most likely to contain an ample amount of humus, or dead organic matter from plants and animals, that fosters plant growth.		As seen in the figure to the right, the three types of soil can be combined in different amounts to form varying types of loam. The particle sizes range from large to small starting with sand, which is defined as having a particle size greater than 63 µm, silt, with a particle size greater than 2 µm but less than 63 µm, and clay, with particle sizes smaller than 2 µm. [1] Loamy soil is the soil type most likely to contain an ample amount of humus, or dead organic matter from plants and animals, that fosters plant growth.

	==Life within the soil==		==Life within the soil==
	Some of the inhabitants of loamy soil include the water-dependent protozoa and ~~nematoda~~. They usually prefer soil ~~containing more~~ silt than sand due to ~~its tendency to hold~~ water. [2] Acari, also known as mites, can tolerate more desiccation than other microorganisms, so they do not need as much exposure to water and can live in a larger range of soil types.		Some of the inhabitants of loamy soil include the water-dependent protozoa and [[Nematodes]]. They usually prefer soil with a greater proportion of silt than sand due to the former's superior water retention. [2] Acari, also known as [[mites]], can tolerate more desiccation than other microorganisms, so they do not need as much exposure to water and can live in a larger range of soil types.


	==Fertility of loamy soil==		==Fertility of loamy soil==
	Loam is the best-suited soil type for growing most plants due to its propensity for holding enough water and nutrients to satisfy their needs. [3] Clay dominant soils, although rich in nutrients, have poor drainage due to the small pore size and is not ideal for roots to grow in due to its hard packed texture. Sandy soils do not hold water well, and silt does not hold nutrients well. ~~These characteristics mixed together end up~~ forming fertile loam, the ideal soil type for many plant types. The ideal loamy soil patch is, by mass, 40-60% pore space containing air and water. [5]		Loam is the best-suited soil type for growing most plants due to its propensity for holding enough water and nutrients to satisfy their needs. [3] Clay dominant soils, although rich in nutrients, have poor drainage due to the small pore size and is not ideal for roots to grow in due to its hard packed texture, which roots often have difficulty penetrating. Sandy soils do not hold water well, and silt does not hold nutrients well. By offering a mixture of these particles, they accentuate the benefits and balance out the detriments of each particle size, forming fertile loam, the ideal soil type for many plant types. The ideal loamy soil patch is, by mass, 40-60% pore space containing air and water. [5]

	Specifically, loamy soil is the preferred growing environment for plants such as strawberries, corn, sunflowers, beets, kale, lettuce, mint, sweet potatoes, peas, tomatoes, and turnips, among others. [4]		Specifically, loamy soil is the preferred growing environment for plants such as strawberries, corn, sunflowers, beets, kale, lettuce, mint, sweet potatoes, peas, tomatoes, and turnips, among others. [4]

	==Field Classification==		==Field Classification==
	Texture, ~~how it feels~~, ~~roll test etc.~~.. ~~WIP~~		Due to its mixture of sand, silt, and clay, a loam soil will have unique characteristics to look for. For the Soil Texture Triangle figure above, if one can determine the soil's percent by weight of any of the two soil characteristics, the subtracting the two known values from 100% will yield the percentage of the unknown value. When using the figure, one typically starts by following the sand value, first, but because as long as at least two values are known, this is not mandatory. [6]

	==References==		==References==
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	[5] Brady, N. C., and R. R. Weil. The Nature and Properties of Soils. 11th ed. Upper Saddle River, N.J.: Prentice Hall, 1996.		[5] Brady, N. C., and R. R. Weil. The Nature and Properties of Soils. 11th ed. Upper Saddle River, N.J.: Prentice Hall, 1996.

			[6] "The Textural Triangle" The University of Idaho. 2016. Retrieved 2018-04-27. http://oneplan.org/Water/soil-triangle.asp.

← Older revision		Revision as of 13:04, 29 April 2021
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	==Physical Properties==		==Physical Properties==
	[[File:Soil texture triangle.png\|thumb\|Photo courtesy of USDA Horticulture and soil science wiki]]		[[File:Soil texture triangle.png\|thumb\|Photo courtesy of USDA Horticulture and soil science wiki]]
	As seen in the figure to the right, the three types of soil can be combined in different amounts to form varying types of loam. The particle sizes range from large to small starting with [[sand]], which is defined as having a particle size greater than 63 µm, silt, with a particle size greater than 2 µm but less than 63 µm, and clay, with particle sizes smaller than 2 µm. [1] Loamy soil is the soil type most likely to contain an ample amount of [[humus]], or dead organic matter from plants and animals, that fosters plant growth.		As seen in the figure to the right, the three types of soil can be combined in different amounts to form varying types of loam. The particle sizes range from large to small starting with [[sand]], which is defined as having a particle size greater than 63 µm, silt, with a particle size greater than 2 µm but less than 63 µm, and clay, with particle sizes smaller than 2 µm. [1] Loamy soil is the soil type most likely to contain an ample amount of [[humus]], or dead organic matter from plants and [[animals]], that fosters plant growth.

	==Life within the soil==		==Life within the soil==
	Some of the inhabitants of loamy soil include the water-dependent protozoa and [[Nematodes]]. They usually prefer soil with a greater proportion of silt than sand due to the former's superior water retention. [2] Acari, also known as [[mites]], can tolerate more desiccation than other microorganisms, so they do not need as much exposure to water and can live in a larger range of soil types.		Some of the inhabitants of loamy soil include the water-dependent [[protozoa]] and [[Nematodes]]. They usually prefer soil with a greater proportion of silt than sand due to the former's superior water retention. [2] [[Acari]], also known as [[mites]], can tolerate more desiccation than other [[microorganisms]], so they do not need as much exposure to water and can live in a larger range of soil types.


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	[1] Kaufmann, Robert K.; Cutler J. Cleveland (2008). Environmental Science. McGraw-Hill. pp. 318–319. ISBN 978-0-07-298429-3.		[1] Kaufmann, Robert K.; Cutler J. Cleveland (2008). Environmental Science. McGraw-Hill. pp. 318–319. ISBN 978-0-07-298429-3.

	[2] Coleman, D. C., Crossley, D. A., Jr., & Hendrix, P. F. (2004). Fundamentals of Soil Ecology (2nd ed.). Amstherdan: Elsevier.		[2] Coleman, D. C., Crossley, D. A., Jr., & Hendrix, P. F. (2004). Fundamentals of Soil [[Ecology]] (2nd ed.). Amstherdan: Elsevier.

	[3] R. B. Brown (September 2007). "Soil Texture" (PDF). Agronomy Fact Sheet Series: Fact Sheet SL-29. Cornell University, Department of Crop and Soil Sciences. Retrieved May 2, 2017.		[3] R. B. Brown (September 2007). "Soil Texture" (PDF). Agronomy Fact Sheet Series: Fact Sheet SL-29. Cornell University, Department of Crop and Soil Sciences. Retrieved May 2, 2017.
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	[4] Old Farmer's Almanac. “Soil Type: Loamy.” Old Farmer's Almanac, www.almanac.com/plants/soil/loamy.		[4] Old Farmer's Almanac. “Soil Type: Loamy.” Old Farmer's Almanac, www.almanac.com/plants/soil/loamy.

	[5] Brady, N. C., and R. R. Weil. The Nature and Properties of Soils. 11th ed. Upper Saddle River, N.J.: Prentice Hall, 1996.		[5] Brady, N. C., and R. R. Weil. The Nature and [[Properties]] of Soils. 11th ed. Upper Saddle River, N.J.: Prentice Hall, 1996.

	[6] "The Textural Triangle" The University of Idaho. 2016. Retrieved 2018-04-27. http://oneplan.org/Water/soil-triangle.asp.		[6] "The Textural Triangle" The University of Idaho. 2016. Retrieved 2018-04-27. http://oneplan.org/Water/soil-triangle.asp.

	[7] Whiting, David. "Estimating Soil Texture: Sandy, Loamy, or Clayey?" Fact Sheet. Colorado Master Gardening Program. Colorado State University. December 2003. Web.		[7] Whiting, David. "Estimating Soil Texture: Sandy, Loamy, or Clayey?" Fact Sheet. Colorado Master Gardening Program. Colorado State University. December 2003. Web.