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This article in AJ

  1. Vol. 59 No. 4, p. 293-296
     
    Received: Oct 6, 1966
    Published: July, 1967


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doi:10.2134/agronj1967.00021962005900040001x

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

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

Abstract

Abstract

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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