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  • Author or Editor: W. J. Blackburn x
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Albedo of plantings of strawberry (Fragaria × Ananassa Duch.) and bare soil is a major factor determining the amount of radiation absorbed and used by the crop in various energy exchanges. It varied diurnally and had a mean daily value of about 22% for 7 days in a one-month period during the major plant-growth and fruit-bearing periods. Exposing moist soil, or soil wetting, reduced albedo by about 20%; this reduction was greatest in the 700 to 1350 nm region. Spectral distribution of reflected radiation from strawberry leaves had broad peaks in the 700 to 1300 nm range and was greater than that from soil in the same range.

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