Cortés-Díaz, Enrique

Martínez-Hernández, Pedro A.

Ramon‐Garay, Angel

Tellez‐Hernández, Fernando

Zaragoza-Ramírez, José L.

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings XXI International Grassland Congress / VIII International Rangeland Congress Forage Yield of Grass and Legume Entries in the Establishing Year in a Dry Tropical Area Enrique Cortés-Díaz Universidad Autónoma Chapingo, Mexico Angel Ramon‐Garay Universidad Autónoma Chapingo, Mexico Fernando Tellez‐Hernández Universidad Autónoma Chapingo, Mexico José L. Zaragoza-Ramírez Universidad Autónoma Chapingo, Mexico Pedro A. Martínez-Hernández Universidad Autónoma Chapingo, Mexico Follow this and additional works at: https://uknowledge.uky.edu/igc  Part of the Plant Sciences Commons, and the Soil Science Commons This document is available at https://uknowledge.uky.edu/igc/21/16-1/17 The XXI International Grassland Congress / VIII International Rangeland Congress took place in Hohhot, China from June 29 through July 5, 2008. Proceedings edited by Organizing Committee of 2008 IGC/IRC Conference Published by Guangdong People's Publishing House This Event is brought to you for free and open access by the Plant and Soil Sciences at UKnowledge. It has been accepted for inclusion in International Grassland Congress Proceedings by an authorized administrator of UKnowledge. For more information, please contact UKnowledge@lsv.uky.edu. 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅱ 　 瞯 ]815　 瞯Grasslands/Rangelands Production Systems——— Integrated Management of Harmful Organisms of Grasslands/RangelandsForage yield of grass and legume entries in the establishing year in a dry tropical areaEnrique Cortes‐Diaz , A ngel Ramon‐Garay , Fernando Tellez‐Hernández , Jose L . Zaragoz a‐Ramirez , Pedro A . Martinez‐Hernandez . Universidad A . Chap ingo , km 38 .5 carr . Mex ico‐Texcoco , Mex ico , MEX ICO 56230 . ecodia＠ yahoo .com .mxKey words : weed invasion ,annual yield ,establishmentIntroduction Years of overgrazing and clearing of land to grow crops in the dry tropical region of south‐central Mexico promotedboth the disappearance of native forage species and changes in soil and microenvironment that impede the restoration ofgrasslands with native species ; a technological alternative is the evaluation of introduced grasses and legumes ( Castillo , １９９８) .This region has a rainy season of four to five months characterized by brief , heavy and sporadic rains . The objective of thestudy was to evaluate fourteen introduced forage species in the first year .Materials and methods Seven grasses and seven legumes were evaluated in a completely random design with three replications ,experimental unit was a plot of ９ m２ . Species were sown at the beginning of the rainy season in rows ６０ cm apart , hoeingbetween rows was done three times to control weeds , no fertilizer or any soil amendment were used . First cut was １４０ d afterseeding ( end of the rainy season) during the following dry season four cuts were done . At each cut the plant material washarvested above ５ or １０ cm from soil level in the grass and legume entries , respectively . Variables analyzed were forage andweed yields at first cut , and forage yield from the cuts done during the dry season , analyses of variance were done with SAS ,PROC GLM ( SAS , ２００６) .Results and discussion Three grasses ( Mulato , Libertad and Tanzania) and one legume ( Lablab) showed the highest amount offorage accumulated during the rainy season ( Table １) making them the more promising forage species for this type of region .Of these species only Mulato and Libertad were able to show some harvestable forage grow th during the dry season . Theimportance of some grow th during the dry season is that these species will show a rapid and strong response to the onset of therainy season making them more competitive against weeds and quickly covering the soil to protect it from the heavy rains . Thehigh yield of the legume Lablab during the rainy season with no grow th in the dry season indicates that this species is suitablefor hay production to help feeding the animals in the dry season . Weeds were not a problem in any of the entries evaluated .Table 1 Forage yield at f irst cut and during the f ollow ing dry season .SpeciesYieldFirst cut Dry seasonForage( t / ha) Weeds( kg / ha) Forage( t / ha)Brachiaria hibrido Mulato １６ \.３ a — １ G.３ abL ablab purpureus １４ D.１ ab １１５ a —B . briz antha Libertad １１ ].８ c ３２ a １ _.８ aPanicum max imum Tanzania ８ /.５ dc — ０ `.３ cB . briz antha Marandu ５ ..４ de ２５ a ０ `.４ cCalopogonium muconoides ３ F.９ e ２８３ a —Neonotonia w ightii Tinaro ３ F.２ e １３４ a ０ I.０３ cChloris gayana Katambora ２ F.７ e ４８ a ０ H.５ bcMacrop tilium atropurpureum Azteca ２ F.６ e ３８ a ０ H.５ bcCenchrus ciliaris Laredo ２ F.５ e ８ a ０ `.１ cN . w ightii Cooper ２ F.３ e ３８ a ０ `.１ cC . gayana Bell ２ F.１ e ７ a ０ `.１ cPueraria phasoeloides １ F.７ e ７５ a —Sty losanthes hamata １ F.２ e １０２ a —磯磯 Means within column with at least one letter in common are not different ( P ＞ ０ .０５ )Conclusions Introduced species showed different forage potential based on yields . Four entries are promising after producing thehighest forage yields in the rainy season . Only Mulato and Libertad produced some grow th in the dry season .ReferencesCastillo , S . I . １９９８ . Evaluación de la estrategia empleada en el programa de establecimiento de praderas en Morelos .Departamento de Zootecnia . Universidad Autónoma Chapingo . Chap ingo , Méx . １６７ pp .SAS . ２００６ . . SAS / SAT User摧s Guide . Release ６ .０３ , SAS Institute , Cary North Carolina , USA .

Forage Yield of Grass and Legume Entries in the Establishing Year in a Dry Tropical Area

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Forage Yield of Grass and Legume Entries in the Establishing Year in a Dry Tropical Area

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