東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Evaluation of five forages under a l...

Richard, Michael.

FindBook

Google Book

Amazon

博客來

Evaluation of five forages under a loblolly pine silvopasture management system.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Evaluation of five forages under a loblolly pine silvopasture management system./
作者:	Richard, Michael.
面頁冊數:	113 p.
附註:	Source: Masters Abstracts International, Volume: 48-02, page: 0966.
Contained By:	Masters Abstracts International48-02.
標題:	Agriculture, Forestry and Wildlife. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1472521
ISBN:	9781109493276

Evaluation of five forages under a loblolly pine silvopasture management system.
Richard, Michael.

Evaluation of five forages under a loblolly pine silvopasture management system. - 113 p.

Source: Masters Abstracts International, Volume: 48-02, page: 0966.

Thesis (M.S.)--Stephen F. Austin State University, 2009.

Establishment of five forages was evaluated under the partial shading of a loblolly pine (Pinus taeda L.) silvopasture system. The five forages evaluated were "Pensacola" bahiagrass ( Paspalum notatum Fluegge), "Texas Tough" bermudagrass (Cynodon dactylon L. Pers.), "Alamo" switchgrass (Panicum virgatum L.), "San Marcos" Eastern Gamagrass (Tripsacum dactyloides L.), and a native mix containing 45% "Texas" little bluestem (Schizachyrium scoparium Michx Nash), 15% sand lovegrass (Eragrostis trichodes Nutt. L. Alph. Wood), 15% "Blackwell" switchgrass (Panicum virgatum L.), 10% "Lometa" indiangrass (Sorgastrum nutans L. Nash), 10% "Haskell" sideoats grama (Bouteloua curtipendula Michx Torr) and 5% "Earl" big bluestem ( Andropgon gerardii Vitman) by weight.

ISBN: 9781109493276Subjects--Topical Terms:

783690
Agriculture, Forestry and Wildlife.

Evaluation of five forages under a loblolly pine silvopasture management system.
LDR:04495nam 2200337 4500 001 1398149
005 20110907152348.5
008 130515s2009 ||||||||||||||||| ||eng d
020 $a 9781109493276
035 $a (UMI)AAI1472521
035 $a AAI1472521
040 $a UMI $c UMI
100 1 $a Richard, Michael. $3 1677023
245 1 0 $a Evaluation of five forages under a loblolly pine silvopasture management system.
300 $a 113 p.
500 $a Source: Masters Abstracts International, Volume: 48-02, page: 0966.
500 $a Adviser: Kenneth Farrish.
502 $a Thesis (M.S.)--Stephen F. Austin State University, 2009.
520 $a Establishment of five forages was evaluated under the partial shading of a loblolly pine (Pinus taeda L.) silvopasture system. The five forages evaluated were "Pensacola" bahiagrass ( Paspalum notatum Fluegge), "Texas Tough" bermudagrass (Cynodon dactylon L. Pers.), "Alamo" switchgrass (Panicum virgatum L.), "San Marcos" Eastern Gamagrass (Tripsacum dactyloides L.), and a native mix containing 45% "Texas" little bluestem (Schizachyrium scoparium Michx Nash), 15% sand lovegrass (Eragrostis trichodes Nutt. L. Alph. Wood), 15% "Blackwell" switchgrass (Panicum virgatum L.), 10% "Lometa" indiangrass (Sorgastrum nutans L. Nash), 10% "Haskell" sideoats grama (Bouteloua curtipendula Michx Torr) and 5% "Earl" big bluestem ( Andropgon gerardii Vitman) by weight.
520 $a The silvopasture site was a 22 year old stand of loblolly pines in the Fairchild State Forest near Rusk, Texas. Plots in the silvopasture were sown with one of the forages in March 2008. Light quality in the silvopasture was evaluated in August, October and January using a hand-held spectroradiometer. For light quality analysis, light was divided into the bands blue, green, red, and far red.
520 $a A pot study was conducted to measure the establishment ability of the test forages under controlled light conditions. The forages were sown into pots under shade cloth enclosures randomly assigned one of three levels of shade; 0%, 30% or 60% shade.
520 $a Soil depth was positively correlated to plant density in the silvopasture. Based on field site plant density data, bahiagrass and E. Gamagrass were well established after one growing season. Compared to full sun, light intensity in the silvopasture was reduced by 29% in August, 51% in October and 56% in January. Light quality in the silvopasture was not affected by the canopy. Intensity of light reflected or absorbed by the silvopasture canopy decreased between August and January. Light readings may have been influenced by Rayleigh scattering of light in the atmosphere and the decrease in solar angle from August to January. Light intensity in the silvopasture was higher than the light compensation point, but lower than the light saturation point for several of the grasses evaluated in this study.
520 $a In the pot study, mean biomass produced beneath 60% shade treatments for all species was less than mean biomass produced beneath 0% and 30% shade treatments. Biomass did not differ among shade treatments within species. ANOVA of mean nutrient tissue concentration showed significant differences among treatments and species for several nutrients. ANOVA of plant density per pot indicated that shade treatments had no effect. Low germination of several test species appears to have influenced plant density in the pot study and in the field site study. Plant density and success rate of establishment data suggest that most warm season grasses evaluated in this study were established after one growing season. Pot study results showed that bahiagrass, bermudagrass and E. Gamagrass produced higher biomass while bahiagrass, switchgrass, and the native mix produced high plant densities. Bahiagrass, bermudagrass and E. Gamagrass appeared to be forages deserving further evaluation under silvopasture management systems. Eastern Gamagrass and bermudagrass may be suitable species if maximum biomass production were the goal of a silvopasture management system. Establishment of switchgrass and the native mix should be evaluated after a second growing season due to limited germination rates and high seed dormancy.
590 $a School code: 6340.
650 4 $a Agriculture, Forestry and Wildlife. $3 783690
650 4 $a Environmental Sciences. $3 676987
650 4 $a Agriculture, Range Management. $3 1022885
690 $a 0478
690 $a 0768
690 $a 0777
710 2 $a Stephen F. Austin State University. $3 1020624
773 0 $t Masters Abstracts International $g 48-02.
790 1 0 $a Farrish, Kenneth, $e advisor
790 $a 6340
791 $a M.S.
792 $a 2009
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1472521