Masuda, Y.

Nakano, Y.

Okano, K.

Shimojo, M.

Tobisa, Manabu

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings 21st International Grassland Congress / 8th International Rangeland Congress Effect of Frequency and Time of Cutting on the Production of Three Strains of Tropical Forage Legume Aeschynomene americana L. in Drained Paddy Field and Upland Field Manabu Tobisa University of Miyazaki, Japan M. Shimojo University of Miyazaki, Japan Y. Nakano University of Miyazaki, Japan K. Okano University of Miyazaki, Japan Y. Masuda University of Miyazaki, Japan 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/21/1-5/48 The 21st International Grassland Congress / 8th 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 Ⅰ 　 瞯 ]247　 瞯Grasslands/Rangelands Resources and Ecology ——— Ecology of Grasslands/RangelandsEffect of frequency and time of cutting on the production of three strains of tropical foragelegume Aeschynomene americana L . in drained paddy field and upland fieldM . Tobisa , M . Shimo jo１ ,Y . Nakano１ ,K . Okano１ and Y . Masuda１Faculty o f A griculture , University o f M iyaz aki , M iyaz aki , ８８９‐２１９２ Japan , １ Faculty o f A griculture , K yushuUniversity , Fukuoka , ８１２‐８５８１ Jap an . E‐mail : mtobisa＠ cc .miyaz aki‐u .ac .j pKey words : cutting frequency , drained paddy field , dry matter production , tropical forage legumeIntroduction In Japan the rice production control has been continuing since the １９７０摧s , and some parts of the paddy fields arelaid off into forage production . However , in the ill‐drained fields or the fields with high ground water table forage species ofhigher wet endurance are required . T ropical forage legume A eschynomene americana cv . Glenn has a high wet endurance(Bishop et al . , １９８５ ; Tobisa et al . , １９９９ ) and shows high dry matter productivity ( Skerman et al . , １９８８ ; Tobisa et al . ,１９９９) . The objective of this experiment was to investigate the effects of two levels of cutting frequency and time on the drymatter productivity of A eschynomene americana L . grown at both drained paddy field and upland field in southern area ofJapan .　 　 Figure 1 E f f ect o f f requency and time o f cutting on the dry mattery ield ( DMY ) , digestible dry matter yield ( DDMY ) and crudep rotein y ield ( CPY ) o f Aeschynomene in drained paddy andup land f ields .G : G lenn , 9 : CPI93556 , L : Lee , 3 : three times cutting , 2 : twotimes cutting , E : early time cutting , L : late time cutting .The total v alues f ollowed by di f f erent letters are signi f icantlydi f f erent at P ＜ 0 .05 .Materials and methods The experiment wasconducted in the drained paddy field adjoiningrice paddy field at the Kyushu UniversityFarm . Three strains of A eschynomeneamericana ( cv . Glenn , Lee and CPI９３５５６ )were sown in spacing of ５０ cm × １５ cm on June１ . Two levels of cutting frequency were ( １ )two times cutting ( the first cutting on August１９th , the second cutting on October ３rd ) and( ２ ) three times cutting ( August ４th ,September ４th , October ３rd ) . Two levels ofthe first cutting were ( １ ) early time ( August３rd ) and ( ２ ) late time ( August １８th ) ,followed by the second cutting on October ９th .Measurements were made for dry matter yield( DMY ) , in v itro dry matter digestibility( IVDMD) and crude protein ( CP) . Digestibledry matter yield (DDMY) and CP yield ( CPY)were calculated .Results Total DMY , DDMY and CPY for thetwo times cutting treatment of Glenn and９３５５６ , annual forages , were higher than thethree times cutting treatment in the drainedpaddy field and upland field ( Figure １) . As forLee , total DMY , DDMY and CPY in thedrained paddy field did not show significantdifferences between the two treatments ofcutting , but in the upland field they showedslightly higher values for the three timescutting . Total DMY , DDMY and CPY for theearly time cutting treatment of Glenn and ９３５５６ were higher than the late time cutting treatment in the drained paddy field , butin the upland field they showed similar values between the early and late time cutting treatments .Conclusions The results of the present study suggested that Glenn and ９３５５６ showed higher total DMY , DDMY and CPY attwo times cutting and longer period of regrow th in the drained paddy field .ReferencesBishop H . G . , D . H . Ludke & M . T . Rutherford ( １９８５ ) . Glenn jointvetch : a new pasture legume for Queensland coastalareas . Queensland A gricultural Journal . １１１ , ２４１‐２４５ .Skerman P . J . , D . G . Cameron & F . Riveros (１９８８) . In : T ropical Forage Legumes . FAO . Rome . ２０５‐２１１ .Tobisa M . , M . Shimojo , K . Okano & Y . Masuda ( １９９９) . Grow th habit of tropical forage legume genus A eschynomene in thedrained paddy field and upland field . Grassland Science ４５ , ２４８‐２５６ . ( In Japanese with English summary)2500 ;;-- 2000 ~ 1500 ~ Cl 323232 G 9 L l)rainedpaddy field 3 3rd 22nd 3 2nd 21st 323232 G 9 L Upland field E L E L E L E L E L E L G L G L l)rainedpaddy field Upland field 

Effect of Frequency and Time of Cutting on the Production of Three Strains of Tropical Forage Legume \u3cem\u3eAeschynomene americana\u3c/em\u3e L. in Drained Paddy Field and Upland Field

https://uknowledge.uky.edu/cgi/viewcontent.cgi?article=2426&amp;context=igc

Effect of Frequency and Time of Cutting on the Production of Three Strains of Tropical Forage Legume \u3cem\u3eAeschynomene americana\u3c/em\u3e L. in Drained Paddy Field and Upland Field

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