Soil and soil water - Revision history

Jana Herold at 09:27, 29 April 2013

2013-04-29T09:27:50Z

2013-03-26T10:38:15Z

‎Links

2013-03-26T09:33:45Z

‎Links

2013-03-26T09:29:48Z

‎Links

2013-03-26T09:29:19Z

‎Links

2013-03-01T08:45:09Z

2013-03-01T08:44:39Z

2013-03-01T08:43:13Z

‎Soil particles

2013-03-01T08:42:59Z

‎Soil particles

2013-03-01T08:42:40Z

‎Soil particles

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 M. Ashman, G. Puri: Essential Soil Science: A Clear and Concise Introduction to Soil Science, 2008, ISBN: 978-0-632-04885-4
+[[Sustaining_Growth|K. Müller-Sämann and J. Kotschi (1994): Sustaining Growth. Soil fertility management in tropical smallholdings.]]
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 = Links =

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 M. Ashman, G. Puri: Essential Soil Science: A Clear and Concise Introduction to Soil Science, 2008, ISBN: 978-0-632-04885-4
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 = Links =
-[http://www.fao.org/docrep/R4082E/r4082e03.htm http://www.fao.org/docrep/R4082E/r4082e03.htm]<br/>[http://courses.soil.ncsu.edu/ssc012/Lecture/topic9.htm http://courses.soil.ncsu.edu/ssc012/Lecture/topic9.htm]
+[http://www.fao.org/docrep/R4082E/r4082e03.htm http://www.fao.org/docrep/R4082E/r4082e03.htm]<br/>[http://broome.soil.ncsu.edu/ssc012/Lecture/topic9.htm http://broome.soil.ncsu.edu/ssc012/Lecture/topic9.htm]
 WEAVER, J. E., 1926: Root development of field crops, London URL: [http://www.soilandhealth.org/01aglibrary/010139fieldcroproots/010139toc.html http://www.soilandhealth.org/01aglibrary/010139fieldcroproots/010139toc.html]

← Older revision		Revision as of 09:33, 26 March 2013
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	M. Ashman, G. Puri: Essential Soil Science: A Clear and Concise Introduction to Soil Science, 2008, ISBN: 978-0-632-04885-4		M. Ashman, G. Puri: Essential Soil Science: A Clear and Concise Introduction to Soil Science, 2008, ISBN: 978-0-632-04885-4
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 M. Ashman, G. Puri: Essential Soil Science: A Clear and Concise Introduction to Soil Science, 2008, ISBN: 978-0-632-04885-4
 = Links =
-[http://www.fao.org/landandwater/aglw/cropwater/cwp.stm http://www.fao.org/docrep/R4082E/r4082e03.htm]<br/>[http://courses.soil.ncsu.edu/ssc012/Lecture/topic9.htm http://courses.soil.ncsu.edu/ssc012/Lecture/topic9.htm]
+[http://www.fao.org/docrep/R4082E/r4082e03.htm http://www.fao.org/docrep/R4082E/r4082e03.htm]<br/>[http://courses.soil.ncsu.edu/ssc012/Lecture/topic9.htm http://courses.soil.ncsu.edu/ssc012/Lecture/topic9.htm]
 WEAVER, J. E., 1926: Root development of field crops, London URL: [http://www.soilandhealth.org/01aglibrary/010139fieldcroproots/010139toc.html http://www.soilandhealth.org/01aglibrary/010139fieldcroproots/010139toc.html]

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 M. Ashman, G. Puri: Essential Soil Science: A Clear and Concise Introduction to Soil Science, 2008, ISBN: 978-0-632-04885-4
 = Links =
-[http://www.fao.org/landandwater/aglw/cropwater/cwp.stm http://www.fao.org/landandwater/aglw/cropwater/cwp.stm]<br/>[http://courses.soil.ncsu.edu/ssc012/Lecture/topic9.htm http://courses.soil.ncsu.edu/ssc012/Lecture/topic9.htm]
+[http://www.fao.org/landandwater/aglw/cropwater/cwp.stm http://www.fao.org/docrep/R4082E/r4082e03.htm]<br/>[http://courses.soil.ncsu.edu/ssc012/Lecture/topic9.htm http://courses.soil.ncsu.edu/ssc012/Lecture/topic9.htm]
 WEAVER, J. E., 1926: Root development of field crops, London URL: [http://www.soilandhealth.org/01aglibrary/010139fieldcroproots/010139toc.html http://www.soilandhealth.org/01aglibrary/010139fieldcroproots/010139toc.html]

← Older revision		Revision as of 08:45, 1 March 2013
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	= References =		= References =
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	BMZ/GIZ/Huppert et al. (1989): Management of Irrigation Systems: Guiding Principles.		BMZ/GIZ/Huppert et al. (1989): Management of Irrigation Systems: Guiding Principles.

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-Most soils consist of mineral and organic materials. Soil develops from parent rock material and organic matter influenced by external factors, such as climate, organisms, topography, time and parent material.
+Most soils consist of mineral and organic materials. Soil develops from parent rock material and organic matter influenced by external factors, such as climate, organisms, topography, time and parent material.<ref>Pidwirny, M. (2006). "Soil Pedogenesis". Fundamentals of Physical Geography, 2nd Edition. http://www.physicalgeography.net/fundamentals/10u.html [03-01-2013].</ref>
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 = Soil particles =
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 Table 1: Grain Size Chart (Source: [http://en.wikipedia.org/wiki/File:Wentworth-Grain-Size-Chart.pdf http://en.wikipedia.org/wiki/File:Wentworth-Grain-Size-Chart.pdf])
 Soil texture is an important property related to soil water. Sand soils are porous, have large spaces between the particles, absorb and retain little water, and dry out quickly: they are also called light soils. Loam soils are loose and more porous, and hold water better than sand soils. Clay soils, also called heavy soils, have little air between particles and hold water tightly; thus, minimal water is available to plants.
 = Organic Matter =

← Older revision		Revision as of 08:43, 1 March 2013
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	Most soils consist of mineral and organic materials. Soil develops from parent rock material and organic matter influenced by external factors, such as climate, organisms, topography, time and parent material.		Most soils consist of mineral and organic materials. Soil develops from parent rock material and organic matter influenced by external factors, such as climate, organisms, topography, time and parent material.
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 Most soils consist of mineral and organic materials. Soil develops from parent rock material and organic matter influenced by external factors, such as climate, organisms, topography, time and parent material.
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 It should be noted that there are different classification systems, e.g. the International classification and the USDA classification (see Table 1). The USDA classification is used in Figure 3. The German classification system (DIN 18196) is not considered here.
-[[File:Grain Size Chart.jpg|left|463px|alt=Grain Size Chart.jpg]]
+[[File:Grain Size Chart.jpg|left|198px|alt=Grain Size Chart.jpg]]
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 Table 1: Grain Size Chart (Source: [http://en.wikipedia.org/wiki/File:Wentworth-Grain-Size-Chart.pdf http://en.wikipedia.org/wiki/File:Wentworth-Grain-Size-Chart.pdf])