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{{Short description|Pest control method}} |
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Soil Solarization is an [[environmentally friendly]] method of using [[solar power]] for controlling disease agents in the soil by [[mulching]] the soil, usually with a transparent [[polyethylene]] cover. |
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'''Soil solarization''' is a non-chemical [[environmentally friendly]] method for [[pest control|controlling pests]] using [[solar power]] to increase the soil temperature to levels at which many soil-borne [[plant pathogen]]s will be killed or greatly weakened.<ref name=":02">{{Cite journal|last1=Raaijmakers|first1=Jos M.|last2=Paulitz|first2=Timothy C.|last3=Steinberg|first3=Christian|last4=Alabouvette|first4=Claude|last5=Moënne-Loccoz|first5=Yvan|date=2008-02-23|title=The rhizosphere: a playground and battlefield for soilborne pathogens and beneficial microorganisms|journal=Plant and Soil|volume=321|issue=1–2|pages=341–361|doi=10.1007/s11104-008-9568-6|issn=0032-079X|doi-access=free}}</ref> Soil solarization is used in warm climates on a relatively small scale in gardens and [[Organic farming|organic farms.]] Soil solarization weakens and kills [[Fungus|fungi]], [[bacteria]], [[nematode]]s, and insect and mite pests along with weeds in the soil by [[mulching]] the soil and covering it with a tarp, usually with a transparent [[polyethylene]] cover to trap solar energy. This energy causes physical, chemical, and biological changes in the soil community.<ref name=":1">{{Cite journal|last=Stapleton|first=James J.|date=September 2000|title=Soil solarization in various agricultural production systems|journal=Crop Protection|volume=19|issue=8–10|pages=837–841|doi=10.1016/s0261-2194(00)00111-3|bibcode=2000CrPro..19..837S |issn=0261-2194}}</ref> Soil solarization is dependent upon time, temperature, and soil moisture.<ref name=":02"/> It may also be described as methods of [[soil decontamination|decontaminating soil]] or creating [[suppressive soils]] by the use of sunlight.{{cn|date=December 2021}} |
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It may also describe methods of decontaminating soil using sunlight or solar power. |
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==Soil disinfestation== |
==Soil disinfestation== |
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Soil solarization is a hydrothermal process of disinfecting the soil of pests, accomplished by solar power (referred to as solar heating of the soil in early publications) and is relatively a new soil disinfestation method, first described in extensive scientific detail by Katan in 1976.<ref>{{Cite journal|last=Katan|first=J.|date=1976|title=Solar Heating by Polyethylene Mulching for the Control of Diseases Caused by Soil-Borne Pathogens|journal=Phytopathology|volume=66|issue=5|pages=683|doi=10.1094/phyto-66-683|issn=0031-949X}}</ref> The mode of action for soil solarization is complex and involves the use of heat as a lethal agent for soil pests from the use of transparent polyethylene tarps.<ref name=":12">{{Cite journal|last1=Mihajlovic|first1=Milica|last2=Rekanovic|first2=Emil|last3=Hrustic|first3=Jovana|last4=Grahovac|first4=Mila|last5=Tanovic|first5=Brankica|date=2017|title=Methods for management of soilborne plant pathogens|journal=Pesticidi I Fitomedicina|volume=32|issue=1|pages=9–24|doi=10.2298/pif1701009m|issn=1820-3949|doi-access=free}}</ref> To increase the effectiveness of solar heating requires optimal seasonal temperatures, mulching during high temperatures and [[solar irradiation]], and moisture soil conditions.<ref>{{Cite journal|last=Katan|first=J|date=September 1981|title=Solar Heating (Solarization) of Soil for Control of Soilborne Pests|journal=Annual Review of Phytopathology|volume=19|issue=1|pages=211–236|doi=10.1146/annurev.py.19.090181.001235|issn=0066-4286}}</ref> Soil temperatures are lower when decreasing in soil depth and it is necessary to continue the mulching process to control for pathogens. Soil solarization practices requires soil temperatures reach 35-60 [[Celsius|degrees Celsius]] (95 to 140°F), which kills pathogens at the top 30 centimeters of soil.<ref name=":2">{{Citation|last1=Katan|first1=Jaacov|title=SECTION 3: Soil Solarization as Integrated Pest Management|date=2017-08-02|work=Soil Solarization: Theory and Practice|pages=89–90|publisher=The American Phytopathological Society|isbn=9780890544198|last2=Gamliel|first2=Abraham|doi=10.1094/9780890544198.012}}</ref> Solarization does not sterilize the soil completely. Soil solarization enhances the soil towards promoting [[Beneficial organism|beneficial microorganisms]].<ref name=":02"/> Soil solarization creates a beneficial microbe community by killing up to 90% of pathogens.<ref name=":2"/> More specifically, a study reported after eight days of solarization 100% of ''[[V. dabliae]]'' (a fungus that causes farm crops to wilt and die) was killed at a depth of 25 centimeters.<ref name=":12" /> Soil solarization causes a decrease in beneficial microbes, however beneficial bacteria like the ''[[Bacillus]]'' species are able to survive and flourish under high temperatures in solarized soils.<ref name=":2"/> Other studies have also reported an increase in ''[[Trichoderma harzianum]]'' (fungicide) after solarization.<ref name=":2" /> Soil solarization allows for the recolonization of competitive beneficial microbes by creating a favorable environment conditions.<ref>{{Cite journal|last1=Stapleton|first1=J.J.|last2=DeVay|first2=J.E.|date=June 1986|title=Soil solarization: a non-chemical approach for management of plant pathogens and pests|journal=Crop Protection|volume=5|issue=3|pages=190–198|doi=10.1016/0261-2194(86)90101-8|bibcode=1986CrPro...5..190S |issn=0261-2194}}</ref> The number of beneficial microbes increases over time and makes solarized soils more resistant to pathogens.<ref name=":2" /> The success of solarization is not only due to the decrease in soil pathogens, but also to the increase in beneficial microbes such as ''Bacillus'', ''[[Pseudomonas]]'', and ''[[Talaromyces flavus]]''.<ref name=":02" /> Soil solarization has been shown to suppress soil pathogens and cause an increase in plant growth. Suppressed soils promote [[rhizobacteria]] and have shown to increase total dry weight in sugar beets by 3.5 times.<ref name=":3">{{Cite journal|last1=Stapleton|first1=J.J.|last2=Quick|first2=J.|last3=Devay|first3=J.E.|date=January 1985|title=Soil solarization: Effects on soil properties, crop fertilization and plant growth|journal=Soil Biology and Biochemistry|volume=17|issue=3|pages=369–373|doi=10.1016/0038-0717(85)90075-6|issn=0038-0717}}</ref> Also the study showed that [[Plant-growth promoting rhizobacteria|plant growth promoting rhizobacteria]] on sugar beets treated with soil solarization increased root density by 4.7 times.<ref name=":3" /> Soil solarization is an important agricultural practice for ecologically friendly soil pathogen suppression. |
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Soil solarization (also referred to as solar heating of the soil in early publications) is a relatively new soil disinfestation method, first described in 1976 by Katan et al., for controlling soilborne pathogens and weeds, mostly as a pre-planting soil treatment. It was achieved by covering (mulching, tarping) the soil with transparent polyethylene during the hot season, thereby heating it and killing the pests. The publication described in detail the method, its principles and potential in disease and weed control under field conditions. It presented the results of studies initiated in 1973 as presented at a meeting of the [[Phytopathological Society of Israel]] in February 1975. |
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==Soil decontamination == |
==Soil decontamination == |
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A 2008 study used a solar cell to generate an electric field for electrokinetic (EK) remediation of cadmium-contaminated soil. The solar cell could drive the electromigration of cadmium in contaminated soil, and the removal efficiency that was achieved by the solar cell was comparable with that achieved by conventional power supply. |
A 2008 study used a solar cell to generate an electric field for electrokinetic (EK) remediation of [[cadmium]]-[[soil contamination|contaminated soil]]. The solar cell could drive the [[electromigration]] of cadmium in contaminated soil, and the removal efficiency that was achieved by the solar cell was comparable with that achieved by conventional power supply.<ref name="pmid18656308">{{cite journal |author=Yuan S|author2=Zheng Z|author3=Chen J|author4= Lu X |title=Use of solar cell in electrokinetic remediation of cadmium-contaminated soil |journal=J. Hazard. Mater. |volume= 162|issue= 2–3|pages= 1583–7|date=June 2008 |pmid=18656308 |doi=10.1016/j.jhazmat.2008.06.038 }}</ref> |
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In Korea, various remediation methods of soil slurry and groundwater contaminated with benzene at a polluted gas station site were evaluated, including a solar-driven, photocatalyzed reactor system along with various advanced oxidation |
In Korea, various remediation methods of soil slurry and groundwater contaminated with [[benzene]] at a polluted gas station site were evaluated, including a solar-driven, photocatalyzed reactor system along with various [[advanced oxidation process]]es (AOP). The most synergistic remediation method incorporated a solar light process with [[TiO2|TiO<sub>2</sub>]] slurry and [[H2O2|H<sub>2</sub>O<sub>2</sub>]] system, achieving 98% benzene degradation, a substantial increase in the removal of benzene.<ref name="pmid18161562">{{cite journal |author=Cho IH|author2=Chang SW |title=The potential and realistic hazards after a solar-driven chemical treatment of benzene using a health risk assessment at a gas station site in Korea |journal=J Environ Sci Health a Tox Hazard Subst Environ Eng |volume=43 |issue=1 |pages=86–97 |date=January 2008 |pmid=18161562 |doi=10.1080/10934520701750090 |s2cid=19062151 }}</ref> |
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== History == |
== History == |
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{{More citations needed section|date=May 2019}} |
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Attempts were made to use solar energy for controlling disease agents in soil and in plant material already in the ancient civilization of [[Solar power in India|India]]. In 1939, Groashevoy, who used the term "solar energy for sand disinfection |
Attempts were made to use solar energy for controlling disease agents in soil and in plant material already in the ancient civilization of [[Solar power in India|India]]{{Citation needed|date=February 2015}}. In 1939, Groashevoy, who used the term "solar energy for sand disinfection", controlled ''Thielaviopsis basicola'' upon heating the sand by exposure to direct sunlight{{Citation needed|date=February 2015}}. |
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Soil solarization is the third approach for soil [[disinfestation]]; the two other main approaches, |
Soil solarization is the third approach for soil [[disinfestation]]; the two other main approaches, [[Soil steam sterilization|soil steaming]] and [[fumigation]]; were developed at the end of the 19th century. The idea of solarization was based on observations by extension workers and farmers in the hot [[Jordan Valley (Middle East)|Jordan Valley]], who noticed the intensive heating of the polyethylene-mulched soil. The involvement of [[biological control]] mechanisms in pathogen control and the possible implications were indicated in the first publication, noticing the very long effect of the treatment. In 1977, American scientists from the [[University of California]] at Davis reported the control of ''[[Verticillium]]'' in a cotton field, based on studies started in 1976, thus denoting, for the first time, the possible wide applicability of this method. |
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The use of polyethylene for soil solarization differs in principle from its traditional agricultural use. With solarization, soil is mulched during the hottest months (rather than the coldest, as in conventional [[plasticulture]] which is aimed at protecting the crop) in order to increase the maximal temperatures in an attempt to achieve lethal heat levels. |
The use of polyethylene for soil solarization differs in principle from its traditional agricultural use. With solarization, soil is mulched during the hottest months (rather than the coldest, as in conventional [[plasticulture]] which is aimed at protecting the crop) in order to increase the maximal temperatures in an attempt to achieve lethal heat levels. |
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In the first 10 years following the influential 1976 publication, soil solarization was investigated in at least 24 countries |
In the first 10 years following the influential 1976 publication, soil solarization was investigated in at least 24 countries<ref> |
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{{cite journal | doi = 10.1007/BF02979585 | volume=15 | title=The first decade (1976–1986) of soil solarization (solar heating): A chronological bibliography | year=1987 | journal=Phytoparasitica | pages=229–255 | last1 = Katan | first1 = J.| issue=3 | bibcode=1987Phyto..15..229K | s2cid=31396706 }}</ref> and has been now been applied in more than 50, mostly in the hot regions, although there were some important exceptions. Studies have demonstrated effectiveness of solarization with various crops, including vegetables, field crops, ornamentals and fruit trees, against many pathogens, weeds and a soil arthropod. Those pathogens and weeds which are not controlled by solarization were also detected. The biological, chemical and physical changes that take in solarized soil during and after the solarization have been investigated, as well as the interaction of solarization with other methods of control. Long-term effects including biological control and increased growth response were verified in various climatic regions and soils, demonstrating the general applicability of solarization. |
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Computerized [[simulation]] models have been developed to guide researchers and growers whether the ambient conditions of their locality are suitable for solarization. |
Computerized [[simulation]] models have been developed to guide researchers and growers whether the ambient conditions of their locality are suitable for solarization. |
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Studies of the improvement of solarization by integrating it with other methods or by solarizing in closed glasshouses, or studies concerning commercial application by developing mulching machines were also carried out. |
Studies of the improvement of solarization by integrating it with other methods or by solarizing in closed glasshouses, or studies concerning commercial application by developing mulching machines were also carried out. |
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The use of solarization in existing orchards (e.g. controlling Verticillium in [[pistachio]] plantations) is an important deviation from the standard preplanting method and was reported as early as 1979. |
The use of solarization in existing orchards (e.g. controlling ''[[Verticillium]]'' in [[pistachio]] plantations) is an important deviation from the standard preplanting method and was reported as early as 1979. |
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== Resources == |
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* http://books.google.com/books?printsec=frontcover&vid=ISBN0849368685#v=onepage&q&f=false |
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* http://www.agri.huji.ac.il/~katan/applic.html |
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* http://solar.uckac.edu/ |
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==References== |
==References== |
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<references /> |
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{{reflist}} |
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==Further reading== |
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*{{cite book|title=Soil Solarization|last1=Katan|first1=Jaacov|last2=DeVay|first2=James E.|isbn=9780849368684|year=1991|publisher=[[CRC Press]]}} |
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[[Category:Earth sciences]] |
[[Category:Earth sciences]] |
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[[Category:Soil]] |
[[Category:Soil]] |
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[[Category:Soil improvers]] |
[[Category:Soil improvers]] |
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[[ja:太陽熱消毒法]] |
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Latest revision as of 22:23, 18 May 2024
Soil solarization is a non-chemical environmentally friendly method for controlling pests using solar power to increase the soil temperature to levels at which many soil-borne plant pathogens will be killed or greatly weakened.[1] Soil solarization is used in warm climates on a relatively small scale in gardens and organic farms. Soil solarization weakens and kills fungi, bacteria, nematodes, and insect and mite pests along with weeds in the soil by mulching the soil and covering it with a tarp, usually with a transparent polyethylene cover to trap solar energy. This energy causes physical, chemical, and biological changes in the soil community.[2] Soil solarization is dependent upon time, temperature, and soil moisture.[1] It may also be described as methods of decontaminating soil or creating suppressive soils by the use of sunlight.[citation needed]
Soil disinfestation[edit]
Soil solarization is a hydrothermal process of disinfecting the soil of pests, accomplished by solar power (referred to as solar heating of the soil in early publications) and is relatively a new soil disinfestation method, first described in extensive scientific detail by Katan in 1976.[3] The mode of action for soil solarization is complex and involves the use of heat as a lethal agent for soil pests from the use of transparent polyethylene tarps.[4] To increase the effectiveness of solar heating requires optimal seasonal temperatures, mulching during high temperatures and solar irradiation, and moisture soil conditions.[5] Soil temperatures are lower when decreasing in soil depth and it is necessary to continue the mulching process to control for pathogens. Soil solarization practices requires soil temperatures reach 35-60 degrees Celsius (95 to 140°F), which kills pathogens at the top 30 centimeters of soil.[6] Solarization does not sterilize the soil completely. Soil solarization enhances the soil towards promoting beneficial microorganisms.[1] Soil solarization creates a beneficial microbe community by killing up to 90% of pathogens.[6] More specifically, a study reported after eight days of solarization 100% of V. dabliae (a fungus that causes farm crops to wilt and die) was killed at a depth of 25 centimeters.[4] Soil solarization causes a decrease in beneficial microbes, however beneficial bacteria like the Bacillus species are able to survive and flourish under high temperatures in solarized soils.[6] Other studies have also reported an increase in Trichoderma harzianum (fungicide) after solarization.[6] Soil solarization allows for the recolonization of competitive beneficial microbes by creating a favorable environment conditions.[7] The number of beneficial microbes increases over time and makes solarized soils more resistant to pathogens.[6] The success of solarization is not only due to the decrease in soil pathogens, but also to the increase in beneficial microbes such as Bacillus, Pseudomonas, and Talaromyces flavus.[1] Soil solarization has been shown to suppress soil pathogens and cause an increase in plant growth. Suppressed soils promote rhizobacteria and have shown to increase total dry weight in sugar beets by 3.5 times.[8] Also the study showed that plant growth promoting rhizobacteria on sugar beets treated with soil solarization increased root density by 4.7 times.[8] Soil solarization is an important agricultural practice for ecologically friendly soil pathogen suppression.
Soil decontamination[edit]
A 2008 study used a solar cell to generate an electric field for electrokinetic (EK) remediation of cadmium-contaminated soil. The solar cell could drive the electromigration of cadmium in contaminated soil, and the removal efficiency that was achieved by the solar cell was comparable with that achieved by conventional power supply.[9]
In Korea, various remediation methods of soil slurry and groundwater contaminated with benzene at a polluted gas station site were evaluated, including a solar-driven, photocatalyzed reactor system along with various advanced oxidation processes (AOP). The most synergistic remediation method incorporated a solar light process with TiO2 slurry and H2O2 system, achieving 98% benzene degradation, a substantial increase in the removal of benzene.[10]
History[edit]
Attempts were made to use solar energy for controlling disease agents in soil and in plant material already in the ancient civilization of India[citation needed]. In 1939, Groashevoy, who used the term "solar energy for sand disinfection", controlled Thielaviopsis basicola upon heating the sand by exposure to direct sunlight[citation needed].
Soil solarization is the third approach for soil disinfestation; the two other main approaches, soil steaming and fumigation; were developed at the end of the 19th century. The idea of solarization was based on observations by extension workers and farmers in the hot Jordan Valley, who noticed the intensive heating of the polyethylene-mulched soil. The involvement of biological control mechanisms in pathogen control and the possible implications were indicated in the first publication, noticing the very long effect of the treatment. In 1977, American scientists from the University of California at Davis reported the control of Verticillium in a cotton field, based on studies started in 1976, thus denoting, for the first time, the possible wide applicability of this method.
The use of polyethylene for soil solarization differs in principle from its traditional agricultural use. With solarization, soil is mulched during the hottest months (rather than the coldest, as in conventional plasticulture which is aimed at protecting the crop) in order to increase the maximal temperatures in an attempt to achieve lethal heat levels.
In the first 10 years following the influential 1976 publication, soil solarization was investigated in at least 24 countries[11] and has been now been applied in more than 50, mostly in the hot regions, although there were some important exceptions. Studies have demonstrated effectiveness of solarization with various crops, including vegetables, field crops, ornamentals and fruit trees, against many pathogens, weeds and a soil arthropod. Those pathogens and weeds which are not controlled by solarization were also detected. The biological, chemical and physical changes that take in solarized soil during and after the solarization have been investigated, as well as the interaction of solarization with other methods of control. Long-term effects including biological control and increased growth response were verified in various climatic regions and soils, demonstrating the general applicability of solarization. Computerized simulation models have been developed to guide researchers and growers whether the ambient conditions of their locality are suitable for solarization.
Studies of the improvement of solarization by integrating it with other methods or by solarizing in closed glasshouses, or studies concerning commercial application by developing mulching machines were also carried out.
The use of solarization in existing orchards (e.g. controlling Verticillium in pistachio plantations) is an important deviation from the standard preplanting method and was reported as early as 1979.
References[edit]
- ^ a b c d Raaijmakers, Jos M.; Paulitz, Timothy C.; Steinberg, Christian; Alabouvette, Claude; Moënne-Loccoz, Yvan (2008-02-23). "The rhizosphere: a playground and battlefield for soilborne pathogens and beneficial microorganisms". Plant and Soil. 321 (1–2): 341–361. doi:10.1007/s11104-008-9568-6. ISSN 0032-079X.
- ^ Stapleton, James J. (September 2000). "Soil solarization in various agricultural production systems". Crop Protection. 19 (8–10): 837–841. Bibcode:2000CrPro..19..837S. doi:10.1016/s0261-2194(00)00111-3. ISSN 0261-2194.
- ^ Katan, J. (1976). "Solar Heating by Polyethylene Mulching for the Control of Diseases Caused by Soil-Borne Pathogens". Phytopathology. 66 (5): 683. doi:10.1094/phyto-66-683. ISSN 0031-949X.
- ^ a b Mihajlovic, Milica; Rekanovic, Emil; Hrustic, Jovana; Grahovac, Mila; Tanovic, Brankica (2017). "Methods for management of soilborne plant pathogens". Pesticidi I Fitomedicina. 32 (1): 9–24. doi:10.2298/pif1701009m. ISSN 1820-3949.
- ^ Katan, J (September 1981). "Solar Heating (Solarization) of Soil for Control of Soilborne Pests". Annual Review of Phytopathology. 19 (1): 211–236. doi:10.1146/annurev.py.19.090181.001235. ISSN 0066-4286.
- ^ a b c d e Katan, Jaacov; Gamliel, Abraham (2017-08-02), "SECTION 3: Soil Solarization as Integrated Pest Management", Soil Solarization: Theory and Practice, The American Phytopathological Society, pp. 89–90, doi:10.1094/9780890544198.012, ISBN 9780890544198
- ^ Stapleton, J.J.; DeVay, J.E. (June 1986). "Soil solarization: a non-chemical approach for management of plant pathogens and pests". Crop Protection. 5 (3): 190–198. Bibcode:1986CrPro...5..190S. doi:10.1016/0261-2194(86)90101-8. ISSN 0261-2194.
- ^ a b Stapleton, J.J.; Quick, J.; Devay, J.E. (January 1985). "Soil solarization: Effects on soil properties, crop fertilization and plant growth". Soil Biology and Biochemistry. 17 (3): 369–373. doi:10.1016/0038-0717(85)90075-6. ISSN 0038-0717.
- ^ Yuan S; Zheng Z; Chen J; Lu X (June 2008). "Use of solar cell in electrokinetic remediation of cadmium-contaminated soil". J. Hazard. Mater. 162 (2–3): 1583–7. doi:10.1016/j.jhazmat.2008.06.038. PMID 18656308.
- ^ Cho IH; Chang SW (January 2008). "The potential and realistic hazards after a solar-driven chemical treatment of benzene using a health risk assessment at a gas station site in Korea". J Environ Sci Health a Tox Hazard Subst Environ Eng. 43 (1): 86–97. doi:10.1080/10934520701750090. PMID 18161562. S2CID 19062151.
- ^ Katan, J. (1987). "The first decade (1976–1986) of soil solarization (solar heating): A chronological bibliography". Phytoparasitica. 15 (3): 229–255. Bibcode:1987Phyto..15..229K. doi:10.1007/BF02979585. S2CID 31396706.