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Agronomy Journal Abstract -

Effect of Reflective Coatings on Soil Temperatures, Soil Moisture, and the Establishment of Fall Bell Peppers1


This article in AJ

  1. Vol. 59 No. 4, p. 293-296
    Received: Oct 6, 1966

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  1. C. J. Gerard and
  2. G. Chambers2



Reflective coatings when applied to modify the soil surface were effective in maintaining favorable soil temperatures and in suppressing evaporation for establishing plant stands. A high inverse relationship was obtained between soil temperatures at planting depth and stand establishment of fall bell peppers. Soil temperatures at 45 C to 47 C at planting depth prevented germination of peppers. Certain coatings were effective in suppressing soil temperatures below 43 C at planting depth and in providing a favorable environment for germination of fall peppers. The data suggest that the use of 41 to 61 liters/are (10 to 15 gal/1000 ft2) of better reflective coating materials adequately suppress evaporation and insure desired plant population of peppers. Pepper yields were a function of stand with the peppers growing under the better coatings producing about 5 metric tons per hectare or over five times the yield on the multi-irrigated bare plots.

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