Depth of Sowing for “Laramie” Medic (Medicago rigidula) Seedlings Emergence

Sound sowing practices for “Laramie” medic (Medicago rigidula [L.] Allioni) are needed in the U.S. Central High Plains to ensure its successful establishment. The objective of this study was to investigate the optimum depth of seed sowing for Laramie medic seedlings emergence in comparison with alfalfa (M. sativa L.) and winter wheat (Triticum aestivum L.) seedlings emergence. Results showed alfalfa and medic had significantly greater percent emergence from the top 0 to 20 and 10 to 30 mm sowing depths, respectively, while winter wheat had significantly greater emergence from the top 10 to 60 mm sowing depths. This study found the optimum sowing depth for Laramie medic seedling emergence to be in the range of 10 to 30 mm with varying peaks within the range depending on moisture availability.

[1]  E. Smith,et al.  Use of Minimum Tillage and Herbicide for Establishing Legumes in Kentucky Bluegrass (Poa pratensis L.) Swards1 , 1969 .

[2]  C. Mullins.  Soil problems worldwide and their solution: lessons for UK agriculture , 2004 .

[3]  B. Beecher,et al.  Registration of ‘Goodstreak’ Wheat , 2004 .

[4]  E. Brown.  THE ASSOCIATION OF OFFICIAL SEED ANALYSTS. , 1910, Science.

[5]  J. H. Spink,et al.  Can seed rate decisions be improved by improved prediction of establishment , 2004 .

[6]  D. Legg,et al.  Evaluation of Cinygmula (Ephemeroptera: Heptageniidae) Drift Behavior as an Indicator of Aqueous Copper Contamination , 2006 .

[7]  James M. Krall,et al.  Performance of Annual Medic Species (Medicago spp.) in Southeastern Wyoming , 2001 .

[8]  G. Triplett,et al.  Effects of Compaction, Depth of Planting, and Soil Moisture Tension on Seedling Emergence of Alfalfa1 , 1960 .

[9]  C. P. Wilsie,et al.  Influence of Depth of Planting, Seed Size, and Variety on Emergence and Seeding Vigor in Alfalfa1 , 1959 .

[10]  E. J. Crawford,et al.  Breeding Annual Medicago Species for Semiarid Conditions in Southern Australia , 1989 .

[11]  F. A. Haskins,et al.  Influence of Seed Size, Planting Depth, and Companion Crop on Emergence and Vigor of Seedlings in Sweetclover' , 1975 .

[12]  R. French,et al.  The annual legume pasture in cereal—Ley farming systems of southern Australia: A review , 1983 .

[13]  A. Sepaskhah,et al.  Effect of Soil Matric Potential and Seeding Depth on Emergence of Barley 1 , 1978 .

[14]  James M. Krall,et al.  Registration of ‘Laramie’ Annual Medic , 2007 .

[15]  John Howieson,et al.  A second generation of annual pasture legumes and their potential for inclusion in Mediterranean-type farming systems , 2005 .

[16]  William G. Cochran,et al.  Experimental Designs, 2nd Edition , 1950 .

[17]  L. E. Moser,et al.  Grass seedling emergence, morphology, and establishment as affected by planting depth , 1988 .