TY - JOUR
T1 - FIELD AGING OF TRANSPARENT POLYETHYLENE MULCHES
T2 - I. PHOTOMETRIC PROPERTIES.
AU - Avissar, R.
AU - Mahrer, Y.
AU - Margulies, L.
AU - Katan, J.
PY - 1986
Y1 - 1986
N2 - Field observation of the temperature regime of irrigated plots mulched with new and old (previously used during one solarization season) transparent polyethylene sheets, has shown that higher temperatures prevail under the old sheets. In order to explain this unexpected phenomenon, we measured the photometric properties (absorbance, transmittance, and reflectance in the ultraviolet-visible and infrared regions of the radiation spectrum) of polyethylene mulches at four aging states encountered during prolonged field utilization. The measurements, carried out both in the field (with pyranometers) and in the laboratory (with spectrophotometers), show that the photometric properties change significantly during the aging process.
AB - Field observation of the temperature regime of irrigated plots mulched with new and old (previously used during one solarization season) transparent polyethylene sheets, has shown that higher temperatures prevail under the old sheets. In order to explain this unexpected phenomenon, we measured the photometric properties (absorbance, transmittance, and reflectance in the ultraviolet-visible and infrared regions of the radiation spectrum) of polyethylene mulches at four aging states encountered during prolonged field utilization. The measurements, carried out both in the field (with pyranometers) and in the laboratory (with spectrophotometers), show that the photometric properties change significantly during the aging process.
UR - http://www.scopus.com/inward/record.url?scp=0022529988&partnerID=8YFLogxK
U2 - 10.2136/sssaj1986.03615995005000010038x
DO - 10.2136/sssaj1986.03615995005000010038x
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AN - SCOPUS:0022529988
SN - 0361-5995
VL - 50
SP - 202
EP - 205
JO - Soil Science Society of America Journal
JF - Soil Science Society of America Journal
IS - 1
ER -