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This article in SSSAJ

  1. Vol. 42 No. 6, p. 959-962
    Received: June 3, 1978
    Accepted: July 21, 1978

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Influence of Row Spacing of Grain Sorghum on Ground Cover, Runoff, and Erosion1

  1. J. E. Adams,
  2. C. W. Richardson and
  3. E. Burnett2



A study was begun at Temple, Texas, in 1972 to assess the effect of narrow (50-cm) and conventional (100-cm) row spacing of grain sorghum [Sorghum bicolor (L.) Moench] on runoff and erosion from field-sized areas. Sorghum in narrow rows established a more complete plant canopy earlier than sorghum with conventional row spacing and provided more ground cover for much of the growing season. In 1973, runoff was 45% less and soil loss was 39% less from narrow-row grain sorghum than from sorghum with conventional row spacing. Narrow-row spacing of sorghum increased ground cover significantly (5% level) 35 days after emergence in 1974. Canopy cover was at maximum by 63 days after seedling emergence and provided a ground cover of 46 and 81% for sorghum with 100- and 50-cm row spacing, respectively.

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