J.of Soc of Agri Struc, Japan.
Vol.21,No.3 March 1991,79-84
Original:
Language: Japanese

    Transmissivities of solar radiation, air change rates and heat loss coefficients of five types of row covers were measured. Transmissivities of solar radiation were almost the same within 0-40 deg of incident angle, but dropped over 40 deg. Airchange rates were linearly increased with increase of porosities of row covers. Heat loss coefficients were increased with an exponential function of wind speed as well as porosities.

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