Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia
The area of dry-season rice ( Oryza sativa L.) has rapidly increased in Cambodia owing to the large-scale development of irrigation infrastructure. But little is known of potential productivity and adaptive crop management. The objective of our study was to evaluate potential yield and nutrient requ...
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| Veröffentlicht in: | Experimental agriculture 2020-04, Vol.56 (2), p.255-264 |
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| creator | Kong, Kea Hin, Sarith Seng, Vang Ismail, Abdelbagi M. Vergara, Georgina Choi, Il-Ryong Ehara, Hiroshi Kato, Yoichiro |
| description | The area of dry-season rice (
Oryza sativa
L.) has rapidly increased in Cambodia owing to the large-scale development of irrigation infrastructure. But little is known of potential productivity and adaptive crop management. The objective of our study was to evaluate potential yield and nutrient requirements of dry-season rice in Cambodia, and the economic feasibility of soil-specific management recommended by the government. Field experiments were conducted on four soil types (Bakan, equivalent to Alfisol; Krakor, Inceptisol; Prateah Lang, Plinthustalfs; and Toul Samroung, Endoaqualfs) in four provinces (Battambang, Kampong Thom, Pursat, and Siem Reap) during the 2016 and 2017 dry seasons to compare 14 (2016) and 8 (2017) N-P-K combinations. Grain yield ranged from 1.0 to 5.5 t ha
−1
in 2016 and from 1.3 to 6.7 t ha
−1
in 2017. Potential yield from the experiments was 6–7 t ha
−1
on Toul Samroung soil, 5–6 t ha
−1
on Bakan soil, and 3–5 t ha
−1
on Prateah Lang and Krakor soils. A rate of 140-60-60 kg ha
−1
of N-P
2
O
5
-K
2
O was more than enough to achieve the best yields on any soil group. On the other hand, modest application rates in soil-specific management (44–78 kg ha
−1
of N, 23–28 kg ha
−1
of P
2
O
5
, 0–30 kg ha
−1
of K
2
O) proved reasonable for resource-poor farmers in Cambodia, since the treatment always provided >75 % of the highest economic profit in high-input plots. |
| doi_str_mv | 10.1017/S0014479719000346 |
| format | Article |
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Oryza sativa
L.) has rapidly increased in Cambodia owing to the large-scale development of irrigation infrastructure. But little is known of potential productivity and adaptive crop management. The objective of our study was to evaluate potential yield and nutrient requirements of dry-season rice in Cambodia, and the economic feasibility of soil-specific management recommended by the government. Field experiments were conducted on four soil types (Bakan, equivalent to Alfisol; Krakor, Inceptisol; Prateah Lang, Plinthustalfs; and Toul Samroung, Endoaqualfs) in four provinces (Battambang, Kampong Thom, Pursat, and Siem Reap) during the 2016 and 2017 dry seasons to compare 14 (2016) and 8 (2017) N-P-K combinations. Grain yield ranged from 1.0 to 5.5 t ha
−1
in 2016 and from 1.3 to 6.7 t ha
−1
in 2017. Potential yield from the experiments was 6–7 t ha
−1
on Toul Samroung soil, 5–6 t ha
−1
on Bakan soil, and 3–5 t ha
−1
on Prateah Lang and Krakor soils. A rate of 140-60-60 kg ha
−1
of N-P
2
O
5
-K
2
O was more than enough to achieve the best yields on any soil group. On the other hand, modest application rates in soil-specific management (44–78 kg ha
−1
of N, 23–28 kg ha
−1
of P
2
O
5
, 0–30 kg ha
−1
of K
2
O) proved reasonable for resource-poor farmers in Cambodia, since the treatment always provided >75 % of the highest economic profit in high-input plots.</description><identifier>ISSN: 0014-4797</identifier><identifier>EISSN: 1469-4441</identifier><identifier>DOI: 10.1017/S0014479719000346</identifier><language>eng</language><publisher>Cambridge: Cambridge University Press</publisher><subject>Agricultural production ; Crop management ; Crop yield ; Cultivars ; Dry season ; Economics ; Experiments ; Farmers ; Fertilizers ; Field tests ; Irrigation ; Nutrient requirements ; Phosphorus pentoxide ; R&D ; Research & development ; Rice ; Seasons ; Soil fertility ; Soil types ; Soils</subject><ispartof>Experimental agriculture, 2020-04, Vol.56 (2), p.255-264</ispartof><rights>Cambridge University Press 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c339t-59303860b5e7470aec69d350cdb54ce19f0dd6a9b97094ddcf4eb4c297f9eeb3</citedby><cites>FETCH-LOGICAL-c339t-59303860b5e7470aec69d350cdb54ce19f0dd6a9b97094ddcf4eb4c297f9eeb3</cites><orcidid>0000-0002-7131-0220</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Kong, Kea</creatorcontrib><creatorcontrib>Hin, Sarith</creatorcontrib><creatorcontrib>Seng, Vang</creatorcontrib><creatorcontrib>Ismail, Abdelbagi M.</creatorcontrib><creatorcontrib>Vergara, Georgina</creatorcontrib><creatorcontrib>Choi, Il-Ryong</creatorcontrib><creatorcontrib>Ehara, Hiroshi</creatorcontrib><creatorcontrib>Kato, Yoichiro</creatorcontrib><title>Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia</title><title>Experimental agriculture</title><description>The area of dry-season rice (
Oryza sativa
L.) has rapidly increased in Cambodia owing to the large-scale development of irrigation infrastructure. But little is known of potential productivity and adaptive crop management. The objective of our study was to evaluate potential yield and nutrient requirements of dry-season rice in Cambodia, and the economic feasibility of soil-specific management recommended by the government. Field experiments were conducted on four soil types (Bakan, equivalent to Alfisol; Krakor, Inceptisol; Prateah Lang, Plinthustalfs; and Toul Samroung, Endoaqualfs) in four provinces (Battambang, Kampong Thom, Pursat, and Siem Reap) during the 2016 and 2017 dry seasons to compare 14 (2016) and 8 (2017) N-P-K combinations. Grain yield ranged from 1.0 to 5.5 t ha
−1
in 2016 and from 1.3 to 6.7 t ha
−1
in 2017. Potential yield from the experiments was 6–7 t ha
−1
on Toul Samroung soil, 5–6 t ha
−1
on Bakan soil, and 3–5 t ha
−1
on Prateah Lang and Krakor soils. A rate of 140-60-60 kg ha
−1
of N-P
2
O
5
-K
2
O was more than enough to achieve the best yields on any soil group. On the other hand, modest application rates in soil-specific management (44–78 kg ha
−1
of N, 23–28 kg ha
−1
of P
2
O
5
, 0–30 kg ha
−1
of K
2
O) proved reasonable for resource-poor farmers in Cambodia, since the treatment always provided >75 % of the highest economic profit in high-input plots.</description><subject>Agricultural production</subject><subject>Crop management</subject><subject>Crop yield</subject><subject>Cultivars</subject><subject>Dry season</subject><subject>Economics</subject><subject>Experiments</subject><subject>Farmers</subject><subject>Fertilizers</subject><subject>Field tests</subject><subject>Irrigation</subject><subject>Nutrient requirements</subject><subject>Phosphorus pentoxide</subject><subject>R&D</subject><subject>Research & development</subject><subject>Rice</subject><subject>Seasons</subject><subject>Soil fertility</subject><subject>Soil types</subject><subject>Soils</subject><issn>0014-4797</issn><issn>1469-4441</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNplUMFKAzEUDKJgrX6At4BXV1-at5vmKEWrUFCw4HHJJm8hpd20ye5h_94s9eZpZt4M82AYuxfwJECo528Agai0EhoAJFYXbCaw0gUiiks2m-xi8q_ZTUq7LCUs5Yz9fIWeut6bPR897R03nePd0EefrzzSafCRDpknHlrusrB9kYgcuUfu4pi5SaHj0VvivuMrc2iC8-aWXbVmn-juD-ds-_a6Xb0Xm8_1x-plU1gpdV-UWoJcVtCUpFCBIVtpJ0uwrinRktAtOFcZ3WgFGp2zLVKDdqFVq4kaOWcP59pjDKeBUl_vwhC7_LFelKpUKEWlc0qcUzaGlCK19TH6g4ljLaCe5qv_zSd_ARitYvM</recordid><startdate>20200401</startdate><enddate>20200401</enddate><creator>Kong, Kea</creator><creator>Hin, Sarith</creator><creator>Seng, Vang</creator><creator>Ismail, Abdelbagi M.</creator><creator>Vergara, Georgina</creator><creator>Choi, Il-Ryong</creator><creator>Ehara, Hiroshi</creator><creator>Kato, Yoichiro</creator><general>Cambridge University Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7ST</scope><scope>7X2</scope><scope>7XB</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M0K</scope><scope>M2O</scope><scope>M7S</scope><scope>MBDVC</scope><scope>PATMY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0002-7131-0220</orcidid></search><sort><creationdate>20200401</creationdate><title>Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia</title><author>Kong, Kea ; Hin, Sarith ; Seng, Vang ; Ismail, Abdelbagi M. ; Vergara, Georgina ; Choi, Il-Ryong ; Ehara, Hiroshi ; Kato, Yoichiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c339t-59303860b5e7470aec69d350cdb54ce19f0dd6a9b97094ddcf4eb4c297f9eeb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Agricultural production</topic><topic>Crop management</topic><topic>Crop yield</topic><topic>Cultivars</topic><topic>Dry season</topic><topic>Economics</topic><topic>Experiments</topic><topic>Farmers</topic><topic>Fertilizers</topic><topic>Field tests</topic><topic>Irrigation</topic><topic>Nutrient requirements</topic><topic>Phosphorus pentoxide</topic><topic>R&D</topic><topic>Research & development</topic><topic>Rice</topic><topic>Seasons</topic><topic>Soil fertility</topic><topic>Soil types</topic><topic>Soils</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kong, Kea</creatorcontrib><creatorcontrib>Hin, Sarith</creatorcontrib><creatorcontrib>Seng, Vang</creatorcontrib><creatorcontrib>Ismail, Abdelbagi M.</creatorcontrib><creatorcontrib>Vergara, Georgina</creatorcontrib><creatorcontrib>Choi, Il-Ryong</creatorcontrib><creatorcontrib>Ehara, Hiroshi</creatorcontrib><creatorcontrib>Kato, Yoichiro</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Environment Abstracts</collection><collection>Agricultural Science Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Agricultural Science Database</collection><collection>Research Library</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Environmental Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>Environment Abstracts</collection><jtitle>Experimental agriculture</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kong, Kea</au><au>Hin, Sarith</au><au>Seng, Vang</au><au>Ismail, Abdelbagi M.</au><au>Vergara, Georgina</au><au>Choi, Il-Ryong</au><au>Ehara, Hiroshi</au><au>Kato, Yoichiro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia</atitle><jtitle>Experimental agriculture</jtitle><date>2020-04-01</date><risdate>2020</risdate><volume>56</volume><issue>2</issue><spage>255</spage><epage>264</epage><pages>255-264</pages><issn>0014-4797</issn><eissn>1469-4441</eissn><abstract>The area of dry-season rice (
Oryza sativa
L.) has rapidly increased in Cambodia owing to the large-scale development of irrigation infrastructure. But little is known of potential productivity and adaptive crop management. The objective of our study was to evaluate potential yield and nutrient requirements of dry-season rice in Cambodia, and the economic feasibility of soil-specific management recommended by the government. Field experiments were conducted on four soil types (Bakan, equivalent to Alfisol; Krakor, Inceptisol; Prateah Lang, Plinthustalfs; and Toul Samroung, Endoaqualfs) in four provinces (Battambang, Kampong Thom, Pursat, and Siem Reap) during the 2016 and 2017 dry seasons to compare 14 (2016) and 8 (2017) N-P-K combinations. Grain yield ranged from 1.0 to 5.5 t ha
−1
in 2016 and from 1.3 to 6.7 t ha
−1
in 2017. Potential yield from the experiments was 6–7 t ha
−1
on Toul Samroung soil, 5–6 t ha
−1
on Bakan soil, and 3–5 t ha
−1
on Prateah Lang and Krakor soils. A rate of 140-60-60 kg ha
−1
of N-P
2
O
5
-K
2
O was more than enough to achieve the best yields on any soil group. On the other hand, modest application rates in soil-specific management (44–78 kg ha
−1
of N, 23–28 kg ha
−1
of P
2
O
5
, 0–30 kg ha
−1
of K
2
O) proved reasonable for resource-poor farmers in Cambodia, since the treatment always provided >75 % of the highest economic profit in high-input plots.</abstract><cop>Cambridge</cop><pub>Cambridge University Press</pub><doi>10.1017/S0014479719000346</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-7131-0220</orcidid></addata></record> |
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| ispartof | Experimental agriculture, 2020-04, Vol.56 (2), p.255-264 |
| issn | 0014-4797 1469-4441 |
| language | eng |
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| source | Cambridge University Press Journals Complete |
| subjects | Agricultural production Crop management Crop yield Cultivars Dry season Economics Experiments Farmers Fertilizers Field tests Irrigation Nutrient requirements Phosphorus pentoxide R&D Research & development Rice Seasons Soil fertility Soil types Soils |
| title | Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia |
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