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  1. No Access

    Article

    On-farm evaluation of planter downforce in varying soil textures within grower fields

    Maintaining adequate planter downforce is critical for achieving timely and uniform crop emergence across the field. On-farm research studies were conducted in different regions across South Georgia, USA to in...

    S. S. Virk, W. M. Porter, C. Li, G. C. Rains, J. L. Snider… in Precision Agriculture (2021)

  2. No Access

    Article

    Effect of understory management on phenological responses of eastern black walnut on an alluvial Arkansas soil

    Black walnut (Juglans nigra L.) is commonly grown in agroforestry practices for nuts and/or timber with little knowledge of how understory herbage management might affect tree phenology. We compared black walnut...

    D. M. Burner, D. K. Brauer, D. H. Pote, J. L. Snider in Agroforestry Systems (2015)

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    Article

    Phenological responses of juvenile pecan and white oak on an upland site

    Pecan (Carya illinoiensis) and white oak (Quercus alba) produce multiple products and wildlife values, but their phenological responses to N fertilization have not been well characterized. We compared tree growth...

    D. M. Burner, D. K. Brauer, J. L. Snider, C. A. Harrington… in Agroforestry Systems (2014)

  4. No Access

    Article

    New absolute spectroscopic measurement of the solar equatorial rotation rate

    We have used an atomic-beam resonance-scattering technique applied to the 7699 Å solar potassium absorption line to make an absolute spectroscopic determination of the solar equatorial rotation rate. To our kn...

    J. L. Snider in Solar Physics (1983)

  5. No Access

    Article

    Absolute spectroscopic determination of solar rotation

    We have made absolute measurements at Kitt Peak of the dependence of solar rotation rate upon latitude during the period 17–20 June 1977. We observed the solar potassium line at 7699 Å using an atomic-beam res...

    J. L. Snider, A. M. Howald, M. D. Kearns, S. W. Thomas, P. A. Tinker in Solar Physics (1979)

  6. No Access

    Article

    Evidence for long-period global oscillations of the Sun

    THE results of our observations of the solar potassium resonance absorption line at 7,699 Å using integrated solar light from the McMath telescope at Kitt Peak together with an atomic beam resonance scattering...

    J. L. SNIDER, M. D. KEARNS, P. A. TINKER in Nature (1978)

  7. No Access

    Article

    Atomic-beam study of the 5-min solar wavelength oscillations

    Long records of the wavelength oscillations of the solar 7699 Å potassium line have been obtained with an atomic-beam resonance-scattering apparatus taken to Kitt Peak. Data are presented giving the dependence...

    J. L. Snider, J. P. Eisenstein, G. R. Otten in Solar Physics (1974)

  8. No Access

    Article

    Comments on two recent measurements of the solar gravitational red-shift

    J. L. Snider in Solar Physics (1974)

  9. No Access

    Article

    Atomic-beam study of the solar 7699 Å potassium line and the solar gravitational red-shift

    The shape and red-shift of the solar potassium resonance line (42 P 1/2→42 S 1/2) at 7699 Å have been studied by an ...

    J. L. Snider in Solar Physics (1970)