Comparing response of ryegrass-white clover pasture to gibberellic acid and nitrogen fertiliser applied in late winter and spring
The objective of this study was to compare the effect of one or two applications of gibberellic acid (GA) or nitrogen (N) fertiliser on dry matter (DM) yield and composition of perennial ryegrass-white clover pasture. Pasture was treated with 0 or 8 g a.i./ha of GA and 0 or 50 kg/ha N fertiliser in...
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| Veröffentlicht in: | New Zealand journal of agricultural research 2016-01, Vol.59 (1), p.18-31 |
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| container_title | New Zealand journal of agricultural research |
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| creator | Bryant, RH Edwards, GR Robinson, B |
| description | The objective of this study was to compare the effect of one or two applications of gibberellic acid (GA) or nitrogen (N) fertiliser on dry matter (DM) yield and composition of perennial ryegrass-white clover pasture. Pasture was treated with 0 or 8 g a.i./ha of GA and 0 or 50 kg/ha N fertiliser in a 2 × 2 factorial design in late winter and spring. One application of N fertiliser increased DM yield by increasing leaf mass and tiller density of perennial ryegrass while one application of GA increased DM yield by increasing perennial ryegrass and white clover yield. There was no DM yield response to two applications of GA, though two applications of N did increase DM yield. A single GA application in late winter increased fibre and reduced protein concentration in ryegrass. The use of GA to increase DM yield with reduced herbage protein concentration may have reduced environmental impact through reducing N intake of livestock. |
| doi_str_mv | 10.1080/00288233.2015.1119164 |
| format | Article |
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Pasture was treated with 0 or 8 g a.i./ha of GA and 0 or 50 kg/ha N fertiliser in a 2 × 2 factorial design in late winter and spring. One application of N fertiliser increased DM yield by increasing leaf mass and tiller density of perennial ryegrass while one application of GA increased DM yield by increasing perennial ryegrass and white clover yield. There was no DM yield response to two applications of GA, though two applications of N did increase DM yield. A single GA application in late winter increased fibre and reduced protein concentration in ryegrass. The use of GA to increase DM yield with reduced herbage protein concentration may have reduced environmental impact through reducing N intake of livestock.</description><subject>Clover</subject><subject>Crop yield</subject><subject>Dry matter</subject><subject>Environmental impact</subject><subject>Factorial design</subject><subject>Fertilizers</subject><subject>Field experiments</subject><subject>Gibberellic acid</subject><subject>Gibberellins</subject><subject>Grasses</subject><subject>Growth</subject><subject>herbage quality</subject><subject>Livestock</subject><subject>Lolium perenne</subject><subject>Nitrogen</subject><subject>Pasture</subject><subject>Pastures</subject><subject>Plant growth</subject><subject>plant growth regulator</subject><subject>plant hormone</subject><subject>Spring</subject><subject>Trifolium repens</subject><subject>White clover</subject><subject>Winter</subject><issn>0028-8233</issn><issn>1175-8775</issn><issn>1175-8775</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kU2LFDEQhoO44Li7P0EIePHSY9LpfPRNGfyCBS96DumkMmbJJG3S4zje9p-bZlYED56KKp56K29ehF5QsqVEkdeE9Er1jG17QvmWUjpSMTxBG0ol75SU_CnarEy3Qs_Q81rvWysGNW7Qwy4fZlNC2uMCdc6pAs4elzPsi6m1O30LC2Ab8w8oeDZ1ORbAS8b7ME1QIMZgsbHBYZMcTmEpeQ8JeyhLiKG2HTPPMYDDIeFomtQppGUdN7zO690bdOVNrHD7WK_R1_fvvuw-dnefP3zavb3r7DCIpWs2QJqJTkJCTxVTihspJsaFcd4ywznxVAkm3cT8YNk0WmF7o6jlE2HOsWv06qI7l_z9CHXRh1Btc2AS5GPVVI5kFAOTfUNf_oPe52NJ7XWNkmNPh_Z5jeIXypZcawGvm5-DKWdNiV6D0X-C0Wsw-jGYv-oppl86JAc_Wx3HhopeMtGWmGzUmwsVks_lYE65RKcXc465-GKSDVWz_x_6DdSuoT0</recordid><startdate>20160102</startdate><enddate>20160102</enddate><creator>Bryant, RH</creator><creator>Edwards, GR</creator><creator>Robinson, B</creator><general>Taylor & Francis</general><general>Taylor & Francis Ltd</general><scope>DUNLO</scope><scope>GOM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7SS</scope><scope>7ST</scope><scope>7T7</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>M7N</scope><scope>P64</scope><scope>SOI</scope></search><sort><creationdate>20160102</creationdate><title>Comparing response of ryegrass-white clover pasture to gibberellic acid and nitrogen fertiliser applied in late winter and spring</title><author>Bryant, RH ; Edwards, GR ; Robinson, B</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c446t-775e7ab1b67e2183885a76b356adfc3a550f18637db3f4c3b9c6c2a81c5b03dd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Clover</topic><topic>Crop yield</topic><topic>Dry matter</topic><topic>Environmental impact</topic><topic>Factorial design</topic><topic>Fertilizers</topic><topic>Field experiments</topic><topic>Gibberellic acid</topic><topic>Gibberellins</topic><topic>Grasses</topic><topic>Growth</topic><topic>herbage quality</topic><topic>Livestock</topic><topic>Lolium perenne</topic><topic>Nitrogen</topic><topic>Pasture</topic><topic>Pastures</topic><topic>Plant growth</topic><topic>plant growth regulator</topic><topic>plant hormone</topic><topic>Spring</topic><topic>Trifolium repens</topic><topic>White clover</topic><topic>Winter</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bryant, RH</creatorcontrib><creatorcontrib>Edwards, GR</creatorcontrib><creatorcontrib>Robinson, B</creatorcontrib><collection>Index New Zealand (A&I)</collection><collection>Index New Zealand</collection><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>New Zealand journal of agricultural research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bryant, RH</au><au>Edwards, GR</au><au>Robinson, B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparing response of ryegrass-white clover pasture to gibberellic acid and nitrogen fertiliser applied in late winter and spring</atitle><jtitle>New Zealand journal of agricultural research</jtitle><date>2016-01-02</date><risdate>2016</risdate><volume>59</volume><issue>1</issue><spage>18</spage><epage>31</epage><pages>18-31</pages><issn>0028-8233</issn><issn>1175-8775</issn><eissn>1175-8775</eissn><abstract>The objective of this study was to compare the effect of one or two applications of gibberellic acid (GA) or nitrogen (N) fertiliser on dry matter (DM) yield and composition of perennial ryegrass-white clover pasture. 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| fulltext | fulltext |
| identifier | ISSN: 0028-8233 |
| ispartof | New Zealand journal of agricultural research, 2016-01, Vol.59 (1), p.18-31 |
| issn | 0028-8233 1175-8775 1175-8775 |
| language | eng |
| recordid | cdi_crossref_primary_10_1080_00288233_2015_1119164 |
| source | Royal Society of New Zealand Open Access Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Clover Crop yield Dry matter Environmental impact Factorial design Fertilizers Field experiments Gibberellic acid Gibberellins Grasses Growth herbage quality Livestock Lolium perenne Nitrogen Pasture Pastures Plant growth plant growth regulator plant hormone Spring Trifolium repens White clover Winter |
| title | Comparing response of ryegrass-white clover pasture to gibberellic acid and nitrogen fertiliser applied in late winter and spring |
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