【摘 要】
：
近年来巨鹿县在 夏秋季蔬菜生产上普 及推广了（ＳＺＷ－１４） 黑色遮阳网，经两年 观察测定：蔬菜覆盖 遮阳网后，能起到降 温（地表温度可降低 ４～６℃，最大值可降 １２℃）；地上３０ｃｍ（厘 米）气温可降１℃左 右； ５ｃｍ地温可下
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近年来巨鹿县在 夏秋季蔬菜生产上普 及推广了（ＳＺＷ－１４） 黑色遮阳网，经两年 观察测定：蔬菜覆盖 遮阳网后，能起到降 温（地表温度可降低 ４～６℃，最大值可降 １２℃）；地上３０ｃｍ（厘 米）气温可降１℃左 右； ５ｃｍ地温可下降 ３～５℃，遮光（遮光率 ５０％～
In recent years, Julu County has popularized the black shade net (SZW-14) on vegetable production in summer and autumn. After two years of observation and determination, the vegetables cover the shade net, which can reduce the temperature (the surface temperature can be reduced by 4 to 6 DEG C and the maximum The value can be reduced 12 ℃); the ground 30cm (cm) temperature can drop about 1 ℃; 5cm ground temperature can drop 3 ~ 5 ℃, shading (shading rate 50%
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