Management of cool-season grasses affects soil temperature and plant survival during summer drought in the rolling plains of Texas

被引:0
|
作者
Malinowski, DP [1 ]
Pinchak, WE [1 ]
Sij, JW [1 ]
Hopkins, AA [1 ]
Ansley, JR [1 ]
Baughman, TA [1 ]
机构
[1] Texas A&M Univ, Texas Agr Expt Stn, Vernon, TX 76385 USA
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中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Wheatgrasses selected for improved forage yield and nutritional quality may be a less expensive alternative to wheat pastures in the Texas Rolling Plains. In this experiment, productivity and nutritional quality of seven introduced wheatgrass species and varieties was tested under an intensive (close and frequent defoliation) and extensive (recommended clipping height and less frequent defoliation) management system. The intensive management system resulted in a greater and better quality yield during the year of establishment. Plant survival appeared enhanced under intensive management after summer drought most probably because of a lower minimum (night) soil temperature when compared to the extensive management system. Results will help select wheatgrasses adapted to environmental conditions of North Texas for increase economic sustainability of perennial grass pastures.
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页码:225 / 229
页数:5
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