Physiological responses and forage accumulation of Marandu palisadegrass and Mombaça guineagrass to nitrogen fertilizer in the Brazilian forage‐based systems
In Brazil, the livestock systems are mainly forage‐based, and nitrogen inputs are an uncommon practice, despite its great benefits. The objective was to evaluate the effect of nitrogen input on the physiological responses of Marandu palisadegrass (Urochloa brizantha [Hochst. ex A. Rich.] R. D. Webst...
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| Veröffentlicht in: | Grassland science 2021-04, Vol.67 (2), p.93-101 |
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| creator | Domiciano, Leandro F. Santos, Mariely L. Boote, Kenneth J. Santos, Patrícia M. Pereira, Dalton H. Pedreira, Bruno C. |
| description | In Brazil, the livestock systems are mainly forage‐based, and nitrogen inputs are an uncommon practice, despite its great benefits. The objective was to evaluate the effect of nitrogen input on the physiological responses of Marandu palisadegrass (Urochloa brizantha [Hochst. ex A. Rich.] R. D. Webster) and Mombaça guineagrass (Megathyrsus maximus [Jacq.] B. K. Simon & S. W. L. Jacobs), and its impacts on the forage accumulation rate (FAR). The experiment was carried out in Sinop, MT, Brazil, in a randomized block design with a 2 × 2 × 5 factorial arrangement (two cultivars: Mombaça and Marandu; unfertilized and fertilized [50 kg N ha−1 cycle−1]; and five seasons: autumn 2015, winter 2015, spring 2015, summer 2015 and autumn 2016) with three replicates. The experimental period was from March 2015 to June 2016, when plots were harvested to mimic intermittent stocking. Fertilized Mombaça presented greater FAR pastures (74.0 kg DM ha−1 day−1) than unfertilized (26.6 kg DM ha−1 day−1) and Marandu fertilized (52.5 kg DM ha−1 day−1), with the greatest values during the summer (147.6 kg DM ha−1 day−1). The greatest leaf (A) and canopy photosynthesis (CP) rates occurred on fertilized pastures during the summer 2015 and autumn 2015. Marandu presented 19% greater A than Mombaça. During the winter, under water stress, Marandu had greater water use efficiency (WUE). However, during the summer 2015 and autumn 16, Mombaça had the greatest WUE (12.76 μmol CO2/mol H2O). In all seasons, Marandu presented the greatest chlorophyll index, which may support the greatest photosynthetic rates. It was concluded that Mombaça was highly responsive to nitrogen input during the rainy season with accumulation over 140 kg DM ha−1 day−1 and is recommended to intensified systems. Marandu had the greatest WUE in the lower precipitation seasons and is an alternative to a year‐round strategy in forage‐based systems. |
| doi_str_mv | 10.1111/grs.12291 |
| format | Article |
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The objective was to evaluate the effect of nitrogen input on the physiological responses of Marandu palisadegrass (Urochloa brizantha [Hochst. ex A. Rich.] R. D. Webster) and Mombaça guineagrass (Megathyrsus maximus [Jacq.] B. K. Simon & S. W. L. Jacobs), and its impacts on the forage accumulation rate (FAR). The experiment was carried out in Sinop, MT, Brazil, in a randomized block design with a 2 × 2 × 5 factorial arrangement (two cultivars: Mombaça and Marandu; unfertilized and fertilized [50 kg N ha−1 cycle−1]; and five seasons: autumn 2015, winter 2015, spring 2015, summer 2015 and autumn 2016) with three replicates. The experimental period was from March 2015 to June 2016, when plots were harvested to mimic intermittent stocking. Fertilized Mombaça presented greater FAR pastures (74.0 kg DM ha−1 day−1) than unfertilized (26.6 kg DM ha−1 day−1) and Marandu fertilized (52.5 kg DM ha−1 day−1), with the greatest values during the summer (147.6 kg DM ha−1 day−1). The greatest leaf (A) and canopy photosynthesis (CP) rates occurred on fertilized pastures during the summer 2015 and autumn 2015. Marandu presented 19% greater A than Mombaça. During the winter, under water stress, Marandu had greater water use efficiency (WUE). However, during the summer 2015 and autumn 16, Mombaça had the greatest WUE (12.76 μmol CO2/mol H2O). In all seasons, Marandu presented the greatest chlorophyll index, which may support the greatest photosynthetic rates. It was concluded that Mombaça was highly responsive to nitrogen input during the rainy season with accumulation over 140 kg DM ha−1 day−1 and is recommended to intensified systems. Marandu had the greatest WUE in the lower precipitation seasons and is an alternative to a year‐round strategy in forage‐based systems.</description><identifier>ISSN: 1744-6961</identifier><identifier>EISSN: 1744-697X</identifier><identifier>DOI: 10.1111/grs.12291</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc</publisher><subject>Accumulation ; Autumn ; Carbon dioxide ; Chlorophyll ; chlorophyll index ; Cultivars ; Fertilizers ; Livestock ; Nitrogen ; nitrogen fertilizer ; Pasture ; Photosynthesis ; Physiological effects ; Physiological responses ; Physiology ; Plant growth ; Rainfall ; Rainy season ; Summer ; Water stress ; Water use ; Water use efficiency ; Winter</subject><ispartof>Grassland science, 2021-04, Vol.67 (2), p.93-101</ispartof><rights>2020 Japanese Society of Grassland Science</rights><rights>2021 Japanese Society of Grassland Science</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2971-42fb6a795779102a39703651ba08384fc400d81474992d5a38eed1f638151ac53</citedby><cites>FETCH-LOGICAL-c2971-42fb6a795779102a39703651ba08384fc400d81474992d5a38eed1f638151ac53</cites><orcidid>0000-0003-4663-954X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fgrs.12291$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fgrs.12291$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1416,27923,27924,45573,45574</link.rule.ids></links><search><creatorcontrib>Domiciano, Leandro F.</creatorcontrib><creatorcontrib>Santos, Mariely L.</creatorcontrib><creatorcontrib>Boote, Kenneth J.</creatorcontrib><creatorcontrib>Santos, Patrícia M.</creatorcontrib><creatorcontrib>Pereira, Dalton H.</creatorcontrib><creatorcontrib>Pedreira, Bruno C.</creatorcontrib><title>Physiological responses and forage accumulation of Marandu palisadegrass and Mombaça guineagrass to nitrogen fertilizer in the Brazilian forage‐based systems</title><title>Grassland science</title><description>In Brazil, the livestock systems are mainly forage‐based, and nitrogen inputs are an uncommon practice, despite its great benefits. The objective was to evaluate the effect of nitrogen input on the physiological responses of Marandu palisadegrass (Urochloa brizantha [Hochst. ex A. Rich.] R. D. Webster) and Mombaça guineagrass (Megathyrsus maximus [Jacq.] B. K. Simon & S. W. L. Jacobs), and its impacts on the forage accumulation rate (FAR). The experiment was carried out in Sinop, MT, Brazil, in a randomized block design with a 2 × 2 × 5 factorial arrangement (two cultivars: Mombaça and Marandu; unfertilized and fertilized [50 kg N ha−1 cycle−1]; and five seasons: autumn 2015, winter 2015, spring 2015, summer 2015 and autumn 2016) with three replicates. The experimental period was from March 2015 to June 2016, when plots were harvested to mimic intermittent stocking. Fertilized Mombaça presented greater FAR pastures (74.0 kg DM ha−1 day−1) than unfertilized (26.6 kg DM ha−1 day−1) and Marandu fertilized (52.5 kg DM ha−1 day−1), with the greatest values during the summer (147.6 kg DM ha−1 day−1). The greatest leaf (A) and canopy photosynthesis (CP) rates occurred on fertilized pastures during the summer 2015 and autumn 2015. Marandu presented 19% greater A than Mombaça. During the winter, under water stress, Marandu had greater water use efficiency (WUE). However, during the summer 2015 and autumn 16, Mombaça had the greatest WUE (12.76 μmol CO2/mol H2O). In all seasons, Marandu presented the greatest chlorophyll index, which may support the greatest photosynthetic rates. It was concluded that Mombaça was highly responsive to nitrogen input during the rainy season with accumulation over 140 kg DM ha−1 day−1 and is recommended to intensified systems. Marandu had the greatest WUE in the lower precipitation seasons and is an alternative to a year‐round strategy in forage‐based systems.</description><subject>Accumulation</subject><subject>Autumn</subject><subject>Carbon dioxide</subject><subject>Chlorophyll</subject><subject>chlorophyll index</subject><subject>Cultivars</subject><subject>Fertilizers</subject><subject>Livestock</subject><subject>Nitrogen</subject><subject>nitrogen fertilizer</subject><subject>Pasture</subject><subject>Photosynthesis</subject><subject>Physiological effects</subject><subject>Physiological responses</subject><subject>Physiology</subject><subject>Plant growth</subject><subject>Rainfall</subject><subject>Rainy season</subject><subject>Summer</subject><subject>Water stress</subject><subject>Water use</subject><subject>Water use efficiency</subject><subject>Winter</subject><issn>1744-6961</issn><issn>1744-697X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kTtOxEAMhiMEEstCwQ1GoqJYmMnkNSUgXtIiEA-JLnISJ8wqmVnGiVCoOAJHoOMg3ISTEAiiw40t_5_9F7_nbQu-J4barxztCd9XYsWbiDgIZpGK71f_5kisextEC85lwiM-8d6uHnrStraVzqFmDmlpDSExMAUrrYMKGeR513Q1tNoaZkt2AW5QO7aEWhMUWDmg8eDCNhl8vAOrOm0QRqG1zOjW2QoNK9G1utbP6Jg2rH1AdujgediA-XX7fHnNgLBg1FOLDW16ayXUhFu_ferdnRzfHp3N5pen50cH81nuq1jMAr_MIohVGMdKcB-kirmMQpEBT2QSlHnAeZGIIA6U8osQZIJYiDKSiQgF5KGcejvj36Wzjx1Smy5s58xgmfohV4rLUPKB2h2p3Fkih2W6dLoB16eCp98BpEMA6U8AA7s_sk-6xv5_MD29vhkvvgAznIwO</recordid><startdate>202104</startdate><enddate>202104</enddate><creator>Domiciano, Leandro F.</creator><creator>Santos, Mariely L.</creator><creator>Boote, Kenneth J.</creator><creator>Santos, Patrícia M.</creator><creator>Pereira, Dalton H.</creator><creator>Pedreira, Bruno C.</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0003-4663-954X</orcidid></search><sort><creationdate>202104</creationdate><title>Physiological responses and forage accumulation of Marandu palisadegrass and Mombaça guineagrass to nitrogen fertilizer in the Brazilian forage‐based systems</title><author>Domiciano, Leandro F. ; Santos, Mariely L. ; Boote, Kenneth J. ; Santos, Patrícia M. ; Pereira, Dalton H. ; Pedreira, Bruno C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2971-42fb6a795779102a39703651ba08384fc400d81474992d5a38eed1f638151ac53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Accumulation</topic><topic>Autumn</topic><topic>Carbon dioxide</topic><topic>Chlorophyll</topic><topic>chlorophyll index</topic><topic>Cultivars</topic><topic>Fertilizers</topic><topic>Livestock</topic><topic>Nitrogen</topic><topic>nitrogen fertilizer</topic><topic>Pasture</topic><topic>Photosynthesis</topic><topic>Physiological effects</topic><topic>Physiological responses</topic><topic>Physiology</topic><topic>Plant growth</topic><topic>Rainfall</topic><topic>Rainy season</topic><topic>Summer</topic><topic>Water stress</topic><topic>Water use</topic><topic>Water use efficiency</topic><topic>Winter</topic><toplevel>online_resources</toplevel><creatorcontrib>Domiciano, Leandro F.</creatorcontrib><creatorcontrib>Santos, Mariely L.</creatorcontrib><creatorcontrib>Boote, Kenneth J.</creatorcontrib><creatorcontrib>Santos, Patrícia M.</creatorcontrib><creatorcontrib>Pereira, Dalton H.</creatorcontrib><creatorcontrib>Pedreira, Bruno C.</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Grassland science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Domiciano, Leandro F.</au><au>Santos, Mariely L.</au><au>Boote, Kenneth J.</au><au>Santos, Patrícia M.</au><au>Pereira, Dalton H.</au><au>Pedreira, Bruno C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Physiological responses and forage accumulation of Marandu palisadegrass and Mombaça guineagrass to nitrogen fertilizer in the Brazilian forage‐based systems</atitle><jtitle>Grassland science</jtitle><date>2021-04</date><risdate>2021</risdate><volume>67</volume><issue>2</issue><spage>93</spage><epage>101</epage><pages>93-101</pages><issn>1744-6961</issn><eissn>1744-697X</eissn><abstract>In Brazil, the livestock systems are mainly forage‐based, and nitrogen inputs are an uncommon practice, despite its great benefits. The objective was to evaluate the effect of nitrogen input on the physiological responses of Marandu palisadegrass (Urochloa brizantha [Hochst. ex A. Rich.] R. D. Webster) and Mombaça guineagrass (Megathyrsus maximus [Jacq.] B. K. Simon & S. W. L. Jacobs), and its impacts on the forage accumulation rate (FAR). The experiment was carried out in Sinop, MT, Brazil, in a randomized block design with a 2 × 2 × 5 factorial arrangement (two cultivars: Mombaça and Marandu; unfertilized and fertilized [50 kg N ha−1 cycle−1]; and five seasons: autumn 2015, winter 2015, spring 2015, summer 2015 and autumn 2016) with three replicates. The experimental period was from March 2015 to June 2016, when plots were harvested to mimic intermittent stocking. Fertilized Mombaça presented greater FAR pastures (74.0 kg DM ha−1 day−1) than unfertilized (26.6 kg DM ha−1 day−1) and Marandu fertilized (52.5 kg DM ha−1 day−1), with the greatest values during the summer (147.6 kg DM ha−1 day−1). The greatest leaf (A) and canopy photosynthesis (CP) rates occurred on fertilized pastures during the summer 2015 and autumn 2015. Marandu presented 19% greater A than Mombaça. During the winter, under water stress, Marandu had greater water use efficiency (WUE). However, during the summer 2015 and autumn 16, Mombaça had the greatest WUE (12.76 μmol CO2/mol H2O). In all seasons, Marandu presented the greatest chlorophyll index, which may support the greatest photosynthetic rates. It was concluded that Mombaça was highly responsive to nitrogen input during the rainy season with accumulation over 140 kg DM ha−1 day−1 and is recommended to intensified systems. Marandu had the greatest WUE in the lower precipitation seasons and is an alternative to a year‐round strategy in forage‐based systems.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/grs.12291</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-4663-954X</orcidid></addata></record> |
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| subjects | Accumulation Autumn Carbon dioxide Chlorophyll chlorophyll index Cultivars Fertilizers Livestock Nitrogen nitrogen fertilizer Pasture Photosynthesis Physiological effects Physiological responses Physiology Plant growth Rainfall Rainy season Summer Water stress Water use Water use efficiency Winter |
| title | Physiological responses and forage accumulation of Marandu palisadegrass and Mombaça guineagrass to nitrogen fertilizer in the Brazilian forage‐based systems |
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