Agronomic biofortification of maize and beans in Kenya through selenium fertilization
Deficiency in calcium, zinc, selenium, and iodine remains a major health issue in Africa. A selenium (Se) status survey conducted in central Kenya highlands revealed a high risk of dietary Se deficiency. This study investigates the effect of soil and foliar Se fertilizer application on Se concentrat...
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| Veröffentlicht in: | Environmental geochemistry and health 2019-12, Vol.41 (6), p.2577-2591 |
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| creator | Ngigi, Peter Biu Lachat, Carl Masinde, Peter Wafula Du Laing, Gijs |
| description | Deficiency in calcium, zinc, selenium, and iodine remains a major health issue in Africa. A selenium (Se) status survey conducted in central Kenya highlands revealed a high risk of dietary Se deficiency. This study investigates the effect of soil and foliar Se fertilizer application on Se concentration in maize and bean grains. It further tests the combination of Se fertilizer with phosphorus and nitrogen fertilizers, and with zinc and iodine fertilizers. Selenium fertilization results in a significant increase in Se concentration in grains. For the soil application, Se concentration increases on average by 3 µg kg
−1
in maize and by 10 µg kg
−1
in beans, for each gram of Se applied as sodium selenate. Foliar Se fertilization is more effective and increases Se concentration in grains on average by 18 µg kg
−1
in maize, and by 67 µg kg
−1
in beans. Total soil phosphorus/availability appears as an important factor influencing soil Se availability. Addition of phosphorus fertilizers positively affects the impact of Se fertilization in locations with low soil P, Fe, and Al. A Se + Zn + I fertilizer combination does not affect the impact on Se concentration in grains. Fertilizing beans alone is found to be more efficient compared to fertilizing only maize. In locations at high risk of dietary Se deficiency, foliar application at 10 g Se ha
−1
on beans or 31 g Se ha
−1
on maize is sufficient to achieve adequate daily dietary Se intake. The study points towards a multi-mineral agronomic biofortification, based on a site-specific biofortification strategy. |
| doi_str_mv | 10.1007/s10653-019-00309-3 |
| format | Article |
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−1
in maize and by 10 µg kg
−1
in beans, for each gram of Se applied as sodium selenate. Foliar Se fertilization is more effective and increases Se concentration in grains on average by 18 µg kg
−1
in maize, and by 67 µg kg
−1
in beans. Total soil phosphorus/availability appears as an important factor influencing soil Se availability. Addition of phosphorus fertilizers positively affects the impact of Se fertilization in locations with low soil P, Fe, and Al. A Se + Zn + I fertilizer combination does not affect the impact on Se concentration in grains. Fertilizing beans alone is found to be more efficient compared to fertilizing only maize. In locations at high risk of dietary Se deficiency, foliar application at 10 g Se ha
−1
on beans or 31 g Se ha
−1
on maize is sufficient to achieve adequate daily dietary Se intake. The study points towards a multi-mineral agronomic biofortification, based on a site-specific biofortification strategy.</description><identifier>ISSN: 0269-4042</identifier><identifier>EISSN: 1573-2983</identifier><identifier>DOI: 10.1007/s10653-019-00309-3</identifier><identifier>PMID: 31069598</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Agronomy ; Aluminum ; Availability ; Beans ; Biofortification - methods ; Biological fertilization ; Calcium ; Corn ; Dietary intake ; Earth and Environmental Science ; Environment ; Environmental Chemistry ; Environmental Health ; Fertilization ; Fertilizer application ; Fertilizers ; Food, Fortified ; Geochemistry ; Hydroxyapatite ; Iodine ; Iron ; Kenya ; Nitrogen ; Nutrient deficiency ; Original Paper ; Phaseolus - chemistry ; Phosphorus ; Plant Leaves ; Public Health ; Seeds - chemistry ; Selenic Acid ; Selenium ; Selenium - analysis ; Sodium ; Sodium selenate ; Soil ; Soil - chemistry ; Soil investigations ; Soil Science & Conservation ; Soils ; Surveying ; Terrestrial Pollution ; Zea mays - chemistry ; Zinc</subject><ispartof>Environmental geochemistry and health, 2019-12, Vol.41 (6), p.2577-2591</ispartof><rights>Springer Nature B.V. 2019</rights><rights>Environmental Geochemistry and Health is a copyright of Springer, (2019). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c419t-c5074ad3cfee63e9a71911e4d5ea338dbcf86a7f5118e6f4bde615f9b14cf4063</citedby><cites>FETCH-LOGICAL-c419t-c5074ad3cfee63e9a71911e4d5ea338dbcf86a7f5118e6f4bde615f9b14cf4063</cites><orcidid>0000-0003-4522-4270</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10653-019-00309-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10653-019-00309-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31069598$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ngigi, Peter Biu</creatorcontrib><creatorcontrib>Lachat, Carl</creatorcontrib><creatorcontrib>Masinde, Peter Wafula</creatorcontrib><creatorcontrib>Du Laing, Gijs</creatorcontrib><title>Agronomic biofortification of maize and beans in Kenya through selenium fertilization</title><title>Environmental geochemistry and health</title><addtitle>Environ Geochem Health</addtitle><addtitle>Environ Geochem Health</addtitle><description>Deficiency in calcium, zinc, selenium, and iodine remains a major health issue in Africa. A selenium (Se) status survey conducted in central Kenya highlands revealed a high risk of dietary Se deficiency. This study investigates the effect of soil and foliar Se fertilizer application on Se concentration in maize and bean grains. It further tests the combination of Se fertilizer with phosphorus and nitrogen fertilizers, and with zinc and iodine fertilizers. Selenium fertilization results in a significant increase in Se concentration in grains. For the soil application, Se concentration increases on average by 3 µg kg
−1
in maize and by 10 µg kg
−1
in beans, for each gram of Se applied as sodium selenate. Foliar Se fertilization is more effective and increases Se concentration in grains on average by 18 µg kg
−1
in maize, and by 67 µg kg
−1
in beans. Total soil phosphorus/availability appears as an important factor influencing soil Se availability. Addition of phosphorus fertilizers positively affects the impact of Se fertilization in locations with low soil P, Fe, and Al. A Se + Zn + I fertilizer combination does not affect the impact on Se concentration in grains. Fertilizing beans alone is found to be more efficient compared to fertilizing only maize. In locations at high risk of dietary Se deficiency, foliar application at 10 g Se ha
−1
on beans or 31 g Se ha
−1
on maize is sufficient to achieve adequate daily dietary Se intake. The study points towards a multi-mineral agronomic biofortification, based on a site-specific biofortification strategy.</description><subject>Agronomy</subject><subject>Aluminum</subject><subject>Availability</subject><subject>Beans</subject><subject>Biofortification - methods</subject><subject>Biological fertilization</subject><subject>Calcium</subject><subject>Corn</subject><subject>Dietary intake</subject><subject>Earth and Environmental Science</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Fertilization</subject><subject>Fertilizer application</subject><subject>Fertilizers</subject><subject>Food, Fortified</subject><subject>Geochemistry</subject><subject>Hydroxyapatite</subject><subject>Iodine</subject><subject>Iron</subject><subject>Kenya</subject><subject>Nitrogen</subject><subject>Nutrient deficiency</subject><subject>Original Paper</subject><subject>Phaseolus - chemistry</subject><subject>Phosphorus</subject><subject>Plant Leaves</subject><subject>Public Health</subject><subject>Seeds - chemistry</subject><subject>Selenic Acid</subject><subject>Selenium</subject><subject>Selenium - analysis</subject><subject>Sodium</subject><subject>Sodium selenate</subject><subject>Soil</subject><subject>Soil - chemistry</subject><subject>Soil investigations</subject><subject>Soil Science & Conservation</subject><subject>Soils</subject><subject>Surveying</subject><subject>Terrestrial Pollution</subject><subject>Zea mays - chemistry</subject><subject>Zinc</subject><issn>0269-4042</issn><issn>1573-2983</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kLtOxDAQRS0EgmXhByiQJRqagB07TlwixEsg0bC15TjjxSixwU4K9uvxsjwkCqop5pw7o4vQESVnlJD6PFEiKlYQKgtCGJEF20IzWtWsKGXDttGMlEIWnPByD-2n9EIIkTVvdtEey6asZDNDi4tlDD4MzuDWBRvi6KwzenTB42DxoN0KsPYdbkH7hJ3H9-DfNR6fY5iWzzhBD95NA7aQ1d6tPtUDtGN1n-Dwa87R4vrq6fK2eHi8ubu8eCgMp3IsTEVqrjtmLIBgIHVNJaXAuwo0Y03XGtsIXduK0gaE5W0HglZWtpQby4lgc3S6yX2N4W2CNKrBJQN9rz2EKamyZOvEfCyjJ3_QlzBFn7_LVEkr0UixpsoNZWJIKYJVr9ENOr4rStS6dLUpXeXS1WfpimXp-Ct6agfofpTvljPANkDKK7-E-Hv7n9gP7CCNbw</recordid><startdate>20191201</startdate><enddate>20191201</enddate><creator>Ngigi, Peter Biu</creator><creator>Lachat, Carl</creator><creator>Masinde, Peter Wafula</creator><creator>Du Laing, Gijs</creator><general>Springer Netherlands</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7ST</scope><scope>7UA</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>88I</scope><scope>8AO</scope><scope>8C1</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H97</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>L.G</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>SOI</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-4522-4270</orcidid></search><sort><creationdate>20191201</creationdate><title>Agronomic biofortification of maize and beans in Kenya through selenium fertilization</title><author>Ngigi, Peter Biu ; Lachat, Carl ; Masinde, Peter Wafula ; Du Laing, Gijs</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c419t-c5074ad3cfee63e9a71911e4d5ea338dbcf86a7f5118e6f4bde615f9b14cf4063</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Agronomy</topic><topic>Aluminum</topic><topic>Availability</topic><topic>Beans</topic><topic>Biofortification - 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Academic</collection><jtitle>Environmental geochemistry and health</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ngigi, Peter Biu</au><au>Lachat, Carl</au><au>Masinde, Peter Wafula</au><au>Du Laing, Gijs</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Agronomic biofortification of maize and beans in Kenya through selenium fertilization</atitle><jtitle>Environmental geochemistry and health</jtitle><stitle>Environ Geochem Health</stitle><addtitle>Environ Geochem Health</addtitle><date>2019-12-01</date><risdate>2019</risdate><volume>41</volume><issue>6</issue><spage>2577</spage><epage>2591</epage><pages>2577-2591</pages><issn>0269-4042</issn><eissn>1573-2983</eissn><abstract>Deficiency in calcium, zinc, selenium, and iodine remains a major health issue in Africa. A selenium (Se) status survey conducted in central Kenya highlands revealed a high risk of dietary Se deficiency. This study investigates the effect of soil and foliar Se fertilizer application on Se concentration in maize and bean grains. It further tests the combination of Se fertilizer with phosphorus and nitrogen fertilizers, and with zinc and iodine fertilizers. Selenium fertilization results in a significant increase in Se concentration in grains. For the soil application, Se concentration increases on average by 3 µg kg
−1
in maize and by 10 µg kg
−1
in beans, for each gram of Se applied as sodium selenate. Foliar Se fertilization is more effective and increases Se concentration in grains on average by 18 µg kg
−1
in maize, and by 67 µg kg
−1
in beans. Total soil phosphorus/availability appears as an important factor influencing soil Se availability. Addition of phosphorus fertilizers positively affects the impact of Se fertilization in locations with low soil P, Fe, and Al. A Se + Zn + I fertilizer combination does not affect the impact on Se concentration in grains. Fertilizing beans alone is found to be more efficient compared to fertilizing only maize. In locations at high risk of dietary Se deficiency, foliar application at 10 g Se ha
−1
on beans or 31 g Se ha
−1
on maize is sufficient to achieve adequate daily dietary Se intake. The study points towards a multi-mineral agronomic biofortification, based on a site-specific biofortification strategy.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><pmid>31069598</pmid><doi>10.1007/s10653-019-00309-3</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0003-4522-4270</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Agronomy Aluminum Availability Beans Biofortification - methods Biological fertilization Calcium Corn Dietary intake Earth and Environmental Science Environment Environmental Chemistry Environmental Health Fertilization Fertilizer application Fertilizers Food, Fortified Geochemistry Hydroxyapatite Iodine Iron Kenya Nitrogen Nutrient deficiency Original Paper Phaseolus - chemistry Phosphorus Plant Leaves Public Health Seeds - chemistry Selenic Acid Selenium Selenium - analysis Sodium Sodium selenate Soil Soil - chemistry Soil investigations Soil Science & Conservation Soils Surveying Terrestrial Pollution Zea mays - chemistry Zinc |
| title | Agronomic biofortification of maize and beans in Kenya through selenium fertilization |
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